Class GenericResultSetFactory

java.lang.Object
org.apache.derby.impl.sql.execute.GenericResultSetFactory
All Implemented Interfaces:
ResultSetFactory
public class GenericResultSetFactory extends Object implements ResultSetFactory
ResultSetFactory provides a wrapper around all of the result sets used in this execution implementation. This removes the need of generated classes to do a new and of the generator to know about all of the result sets. Both simply know about this interface to getting them.

In terms of modularizing, we can create just an interface to this class and invoke the interface. Different implementations would get the same information provided but could potentially massage/ignore it in different ways to satisfy their implementations. The practicality of this is to be seen.

The cost of this type of factory is that once you touch it, you touch *all* of the possible result sets, not just the ones you need. So the first time you touch it could be painful ... that might be a problem for execution.

  • Field Summary

    Fields inherited from interface ResultSetFactory

    MODULE

  • Constructor Summary

    Constructors
    Constructor
    Description
    GenericResultSetFactory()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    NoPutResultSet
    getAnyResultSet(NoPutResultSet source, GeneratedMethod emptyRowFun, int resultSetNumber, int subqueryNumber, int pointOfAttachment, double optimizerEstimatedRowCount, double optimizerEstimatedCost)
    An any result set iterates over its source, returning a row with all columns set to nulls if the source returns no rows.
    private static Authorizer
    getAuthorizer(Activation activation)
     
    NoPutResultSet
    getBulkTableScanResultSet(Activation activation, long conglomId, int scociItem, int resultRowTemplate, int resultSetNumber, GeneratedMethod startKeyGetter, int startSearchOperator, GeneratedMethod stopKeyGetter, int stopSearchOperator, boolean sameStartStopPosition, Qualifier[][] qualifiers, String tableName, String userSuppliedOptimizerOverrides, String indexName, boolean isConstraint, boolean forUpdate, int colRefItem, int indexColItem, int lockMode, boolean tableLocked, int isolationLevel, int rowsPerRead, boolean disableForHoldable, boolean oneRowScan, double optimizerEstimatedRowCount, double optimizerEstimatedCost)
    Table/Index scan where rows are read in bulk
    ResultSet
    getCallStatementResultSet(GeneratedMethod methodCall, Activation activation)
    A call statement result set simply reports that it completed.
    NoPutResultSet
    getCurrentOfResultSet(String cursorName, Activation activation, int resultSetNumber)
    A current of result set forms a result set on the current row of an open cursor.
    ResultSet
    getDDLResultSet(Activation activation)
    Generic DDL result set creation.
    ResultSet
    getDeleteCascadeResultSet(NoPutResultSet source, int constantActionItem, ResultSet[] dependentResultSets, String resultSetId)
    A delete Cascade result set simply reports that it completed, and the number of rows deleted.
    ResultSet
    getDeleteCascadeUpdateResultSet(NoPutResultSet source, GeneratedMethod generationClauses, GeneratedMethod checkGM, int constantActionItem, int rsdItem)
    An update result set simply reports that it completed, and the number of rows updated.
    ResultSet
    getDeleteResultSet(NoPutResultSet source)
    A delete result set simply reports that it completed, and the number of rows deleted.
    ResultSet
    getDeleteVTIResultSet(NoPutResultSet source)
    A delete VTI result set simply reports that it completed, and the number of rows deleted.
    NoPutResultSet
    getDistinctGroupedAggregateResultSet(NoPutResultSet source, boolean isInSortedOrder, int aggregateItem, int orderItem, int rowAllocator, int maxRowSize, int resultSetNumber, double optimizerEstimatedRowCount, double optimizerEstimatedCost, boolean isRollup)
    A DistinctGroupedAggregateResultSet computes scalar aggregates when at least one of them is a distinct aggregate.
    NoPutResultSet
    getDistinctScalarAggregateResultSet(NoPutResultSet source, boolean isInSortedOrder, int aggregateItem, int orderItem, int rowAllocator, int maxRowSize, int resultSetNumber, boolean singleInputRow, double optimizerEstimatedRowCount, double optimizerEstimatedCost)
    A DistinctScalarAggregateResultSet computes scalar aggregates when at least one of them is a distinct aggregate.
    NoPutResultSet
    getDistinctScanResultSet(Activation activation, long conglomId, int scociItem, int resultRowTemplate, int resultSetNumber, int hashKeyColumn, String tableName, String userSuppliedOptimizerOverrides, String indexName, boolean isConstraint, int colRefItem, int lockMode, boolean tableLocked, int isolationLevel, double optimizerEstimatedRowCount, double optimizerEstimatedCost)
    a distinct scan generator, for ease of use at present.
    NoPutResultSet
    getGroupedAggregateResultSet(NoPutResultSet source, boolean isInSortedOrder, int aggregateItem, int orderItem, int rowAllocator, int maxRowSize, int resultSetNumber, double optimizerEstimatedRowCount, double optimizerEstimatedCost, boolean isRollup)
    A GroupedAggregateResultSet computes non-distinct grouped aggregates.
    NoPutResultSet
    getHashJoinResultSet(NoPutResultSet leftResultSet, int leftNumCols, NoPutResultSet rightResultSet, int rightNumCols, GeneratedMethod joinClause, int resultSetNumber, boolean oneRowRightSide, boolean notExistsRightSide, double optimizerEstimatedRowCount, double optimizerEstimatedCost, String userSuppliedOptimizerOverrides)
    A hash join.
    NoPutResultSet
    getHashLeftOuterJoinResultSet(NoPutResultSet leftResultSet, int leftNumCols, NoPutResultSet rightResultSet, int rightNumCols, GeneratedMethod joinClause, int resultSetNumber, GeneratedMethod emptyRowFun, boolean wasRightOuterJoin, boolean oneRowRightSide, boolean notExistsRightSide, double optimizerEstimatedRowCount, double optimizerEstimatedCost, String userSuppliedOptimizerOverrides)
    A left outer join using a hash join.
    NoPutResultSet
    getHashScanResultSet(Activation activation, long conglomId, int scociItem, int resultRowTemplate, int resultSetNumber, GeneratedMethod startKeyGetter, int startSearchOperator, GeneratedMethod stopKeyGetter, int stopSearchOperator, boolean sameStartStopPosition, Qualifier[][] scanQualifiers, Qualifier[][] nextQualifiers, int initialCapacity, float loadFactor, int maxCapacity, int hashKeyColumn, String tableName, String userSuppliedOptimizerOverrides, String indexName, boolean isConstraint, boolean forUpdate, int colRefItem, int indexColItem, int lockMode, boolean tableLocked, int isolationLevel, double optimizerEstimatedRowCount, double optimizerEstimatedCost)
    a hash scan generator, for ease of use at present.
    NoPutResultSet
    getHashTableResultSet(NoPutResultSet source, GeneratedMethod singleTableRestriction, Qualifier[][] equijoinQualifiers, GeneratedMethod projection, int resultSetNumber, int mapRefItem, boolean reuseResult, int keyColItem, boolean removeDuplicates, long maxInMemoryRowCount, int initialCapacity, float loadFactor, double optimizerEstimatedRowCount, double optimizerEstimatedCost)
    A hash table result set builds a hash table on its source, applying a list of predicates, if any, to the source, when building the hash table.
    NoPutResultSet
    getIndexRowToBaseRowResultSet(long conglomId, int scociItem, NoPutResultSet source, int resultRowAllocator, int resultSetNumber, String indexName, int heapColRefItem, int allColRefItem, int heapOnlyColRefItem, int indexColMapItem, GeneratedMethod restriction, boolean forUpdate, double optimizerEstimatedRowCount, double optimizerEstimatedCost, int baseColumnCount)
    An index row to base row result set gets an index row from its source and uses the RowLocation in its last column to get the row from the base conglomerate.
    ResultSet
    getInsertResultSet(NoPutResultSet source, GeneratedMethod generationClauses, GeneratedMethod checkGM, int fullTemplate, String schemaName, String tableName)
    An insert result set simply reports that it completed, and the number of rows inserted.
    ResultSet
    getInsertVTIResultSet(NoPutResultSet source, NoPutResultSet vtiRS)
    An insert VTI result set simply reports that it completed, and the number of rows inserted.
    NoPutResultSet
    getLastIndexKeyResultSet(Activation activation, int resultSetNumber, int resultRowTemplate, long conglomId, String tableName, String userSuppliedOptimizerOverrides, String indexName, int colRefItem, int lockMode, boolean tableLocked, int isolationLevel, double optimizerEstimatedRowCount, double optimizerEstimatedCost)
    A last index key sresult set returns the last row from the index in question.
    NoPutResultSet
    getMaterializedResultSet(NoPutResultSet source, int resultSetNumber, double optimizerEstimatedRowCount, double optimizerEstimatedCost)
    A ResultSet which materializes the underlying ResultSet tree into a temp table on the 1st open.
    ResultSet
    getMergeResultSet(NoPutResultSet drivingLeftJoin)
    A MERGE result set simply reports that it completed, and the number of rows that it INSERTed/UPDATEd/DELETEdd.
    ResultSet
    getMiscResultSet(Activation activation)
    Generic Misc result set creation.
    NoPutResultSet
    getMultiProbeTableScanResultSet(Activation activation, long conglomId, int scociItem, int resultRowTemplate, int resultSetNumber, GeneratedMethod startKeyGetter, int startSearchOperator, GeneratedMethod stopKeyGetter, int stopSearchOperator, boolean sameStartStopPosition, Qualifier[][] qualifiers, DataValueDescriptor[] probeVals, int sortRequired, String tableName, String userSuppliedOptimizerOverrides, String indexName, boolean isConstraint, boolean forUpdate, int colRefItem, int indexColItem, int lockMode, boolean tableLocked, int isolationLevel, boolean oneRowScan, double optimizerEstimatedRowCount, double optimizerEstimatedCost)
    Multi-probing scan that probes an index for specific values contained in the received probe list.
    NoPutResultSet
    getNestedLoopJoinResultSet(NoPutResultSet leftResultSet, int leftNumCols, NoPutResultSet rightResultSet, int rightNumCols, GeneratedMethod joinClause, int resultSetNumber, boolean oneRowRightSide, boolean notExistsRightSide, double optimizerEstimatedRowCount, double optimizerEstimatedCost, String userSuppliedOptimizerOverrides)
    A nested loop left outer join result set forms a result set on top of 2 other result sets.
    NoPutResultSet
    getNestedLoopLeftOuterJoinResultSet(NoPutResultSet leftResultSet, int leftNumCols, NoPutResultSet rightResultSet, int rightNumCols, GeneratedMethod joinClause, int resultSetNumber, GeneratedMethod emptyRowFun, boolean wasRightOuterJoin, boolean oneRowRightSide, boolean notExistsRightSide, double optimizerEstimatedRowCount, double optimizerEstimatedCost, String userSuppliedOptimizerOverrides)
    A nested loop join result set forms a result set on top of 2 other result sets.
    NoPutResultSet
    getNormalizeResultSet(NoPutResultSet source, int resultSetNumber, int erdNumber, double optimizerEstimatedRowCount, double optimizerEstimatedCost, boolean forUpdate)
    REMIND: needs more description...
    NoPutResultSet
    getOnceResultSet(NoPutResultSet source, GeneratedMethod emptyRowFun, int cardinalityCheck, int resultSetNumber, int subqueryNumber, int pointOfAttachment, double optimizerEstimatedRowCount, double optimizerEstimatedCost)
    A once result set iterates over its source, raising an error if the source returns > 1 row and returning a row with all columns set to nulls if the source returns no rows.
    NoPutResultSet
    getProjectRestrictResultSet(NoPutResultSet source, GeneratedMethod restriction, GeneratedMethod projection, int resultSetNumber, GeneratedMethod constantRestriction, int mapRefItem, int cloneMapItem, boolean reuseResult, boolean doesProjection, boolean validatingCheckConstraint, String validatingBaseTableUUIDString, double optimizerEstimatedRowCount, double optimizerEstimatedCost)
    A project restrict result set iterates over its source, evaluating a restriction and when it is satisfied, constructing a row to return in its result set based on its projection.
    NoPutResultSet
    getRaDependentTableScanResultSet(Activation activation, long conglomId, int scociItem, int resultRowTemplate, int resultSetNumber, GeneratedMethod startKeyGetter, int startSearchOperator, GeneratedMethod stopKeyGetter, int stopSearchOperator, boolean sameStartStopPosition, Qualifier[][] qualifiers, String tableName, String userSuppliedOptimizerOverrides, String indexName, boolean isConstraint, boolean forUpdate, int colRefItem, int indexColItem, int lockMode, boolean tableLocked, int isolationLevel, boolean oneRowScan, double optimizerEstimatedRowCount, double optimizerEstimatedCost, String parentResultSetId, long fkIndexConglomId, int fkColArrayItem, int rltItem)
    a referential action dependent table scan generator.
    NoPutResultSet
    getRowCountResultSet(NoPutResultSet source, Activation activation, int resultSetNumber, GeneratedMethod offsetMethod, GeneratedMethod fetchFirstMethod, boolean hasJDBClimitClause, double optimizerEstimatedRowCount, double optimizerEstimatedCost)
    This result sets implements the filtering needed by and .
    NoPutResultSet
    getRowResultSet(Activation activation, GeneratedMethod row, boolean canCacheRow, int resultSetNumber, double optimizerEstimatedRowCount, double optimizerEstimatedCost)
    A row result set forms a result set on a single, known row value.
    NoPutResultSet
    getScalarAggregateResultSet(NoPutResultSet source, boolean isInSortedOrder, int aggregateItem, int orderItem, int rowAllocator, int maxRowSize, int resultSetNumber, boolean singleInputRow, double optimizerEstimatedRowCount, double optimizerEstimatedCost)
    A ScalarAggregateResultSet computes non-distinct scalar aggregates.
    NoPutResultSet
    getScrollInsensitiveResultSet(NoPutResultSet source, Activation activation, int resultSetNumber, int sourceRowWidth, boolean scrollable, double optimizerEstimatedRowCount, double optimizerEstimatedCost)
    A ResultSet which provides the insensitive scrolling functionality for the underlying result set by materializing the underlying ResultSet tree into a hash table while scrolling forward.
    NoPutResultSet
    getSetOpResultSet(NoPutResultSet leftSource, NoPutResultSet rightSource, Activation activation, int resultSetNumber, long optimizerEstimatedRowCount, double optimizerEstimatedCost, int opType, boolean all, int intermediateOrderByColumnsSavedObject, int intermediateOrderByDirectionSavedObject, int intermediateOrderByNullsLowSavedObject)
    The SetOpResultSet is used to implement an INTERSECT or EXCEPT operation.
    ResultSet
    getSetTransactionResultSet(Activation activation)
     
    NoPutResultSet
    getSortResultSet(NoPutResultSet source, boolean distinct, boolean isInSortedOrder, int orderItem, int rowAllocator, int maxRowSize, int resultSetNumber, double optimizerEstimatedRowCount, double optimizerEstimatedCost)
    A sort result set sorts its source and if requested removes duplicates.
    NoPutResultSet
    getTableScanResultSet(Activation activation, long conglomId, int scociItem, int resultRowTemplate, int resultSetNumber, GeneratedMethod startKeyGetter, int startSearchOperator, GeneratedMethod stopKeyGetter, int stopSearchOperator, boolean sameStartStopPosition, Qualifier[][] qualifiers, String tableName, String userSuppliedOptimizerOverrides, String indexName, boolean isConstraint, boolean forUpdate, int colRefItem, int indexColItem, int lockMode, boolean tableLocked, int isolationLevel, boolean oneRowScan, double optimizerEstimatedRowCount, double optimizerEstimatedCost)
    a minimal table scan generator, for ease of use at present.
    NoPutResultSet
    getUnionResultSet(NoPutResultSet leftResultSet, NoPutResultSet rightResultSet, int resultSetNumber, double optimizerEstimatedRowCount, double optimizerEstimatedCost)
    a minimal union scan generator, for ease of use at present.
    ResultSet
    getUpdateResultSet(NoPutResultSet source, GeneratedMethod generationClauses, GeneratedMethod checkGM)
    An update result set simply reports that it completed, and the number of rows updated.
    ResultSet
    getUpdateVTIResultSet(NoPutResultSet source)
     
    NoPutResultSet
    getValidateCheckConstraintResultSet(Activation activation, long conglomId, int scociItem, int resultRowTemplate, int resultSetNumber, GeneratedMethod startKeyGetter, int startSearchOperator, GeneratedMethod stopKeyGetter, int stopSearchOperator, boolean sameStartStopPosition, Qualifier[][] qualifiers, String tableName, String userSuppliedOptimizerOverrides, String indexName, boolean isConstraint, boolean forUpdate, int colRefItem, int indexColItem, int lockMode, boolean tableLocked, int isolationLevel, boolean oneRowScan, double optimizerEstimatedRowCount, double optimizerEstimatedCost)
    A table scan result set forms a result set on a scan of a table.
    NoPutResultSet
    getVTIResultSet(Activation activation, int row, int resultSetNumber, GeneratedMethod constructor, String javaClassName, Qualifier[][] pushedQualifiers, int erdNumber, boolean version2, boolean reuseablePs, int ctcNumber, boolean isTarget, int scanIsolationLevel, double optimizerEstimatedRowCount, double optimizerEstimatedCost, boolean isDerbyStyleTableFunction, int returnTypeNumber, int vtiProjectionNumber, int vtiRestrictionNumber, String vtiSchema, String vtiName)
    A VTI result set wraps a user supplied result set.
    NoPutResultSet
    getWindowResultSet(Activation activation, NoPutResultSet source, int rowAllocator, int resultSetNumber, int erdNumber, GeneratedMethod restriction, double optimizerEstimatedRowCount, double optimizerEstimatedCost)
    A OLAP window on top of a regular result set.

    Methods inherited from class Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • GenericResultSetFactory

      public GenericResultSetFactory()

  • Method Details

    • getInsertResultSet

      public ResultSet getInsertResultSet(NoPutResultSet source, GeneratedMethod generationClauses, GeneratedMethod checkGM, int fullTemplate, String schemaName, String tableName) throws StandardException
      Description copied from interface: ResultSetFactory
      An insert result set simply reports that it completed, and the number of rows inserted. It does not return rows. The insert has been completed once the insert result set is available.
      Specified by:
      getInsertResultSet in interface ResultSetFactory
      Parameters:
      source - the result set from which to take rows to be inserted into the target table.
      generationClauses - The code to compute column generation clauses if any
      checkGM - The code to enforce the check constraints, if any
      fullTemplate - Saved item for a row template used by bulk insert, or -1 if this is not a bulk insert
      schemaName - schema name of table
      tableName - table name
      Returns:
      the insert operation as a result set.
      Throws:
      StandardException - thrown on error
      See Also:

    • getInsertVTIResultSet

      public ResultSet getInsertVTIResultSet(NoPutResultSet source, NoPutResultSet vtiRS) throws StandardException
      Description copied from interface: ResultSetFactory
      An insert VTI result set simply reports that it completed, and the number of rows inserted. It does not return rows. The insert has been completed once the insert result set is available.
      Specified by:
      getInsertVTIResultSet in interface ResultSetFactory
      Parameters:
      source - the result set from which to take rows to be inserted into the target table.
      vtiRS - The code to instantiate the VTI, if necessary
      Returns:
      the insert VTI operation as a result set.
      Throws:
      StandardException - thrown on error
      See Also:

    • getDeleteVTIResultSet

      public ResultSet getDeleteVTIResultSet(NoPutResultSet source) throws StandardException
      Description copied from interface: ResultSetFactory
      A delete VTI result set simply reports that it completed, and the number of rows deleted. It does not return rows. The delete has been completed once the delete result set is available.
      Specified by:
      getDeleteVTIResultSet in interface ResultSetFactory
      Parameters:
      source - the result set from which to take rows to be inserted into the target table.
      Returns:
      the delete VTI operation as a result set.
      Throws:
      StandardException - thrown on error
      See Also:

    • getDeleteResultSet

      public ResultSet getDeleteResultSet(NoPutResultSet source) throws StandardException
      Description copied from interface: ResultSetFactory
      A delete result set simply reports that it completed, and the number of rows deleted. It does not return rows. The delete has been completed once the delete result set is available.
      Specified by:
      getDeleteResultSet in interface ResultSetFactory
      Parameters:
      source - the result set from which to take rows to be deleted from the target table. This result set must contain one column which provides RowLocations that are valid in the target table.
      Returns:
      the delete operation as a result set.
      Throws:
      StandardException - thrown on error
      See Also:

    • getMergeResultSet

      public ResultSet getMergeResultSet(NoPutResultSet drivingLeftJoin) throws StandardException
      Description copied from interface: ResultSetFactory
      A MERGE result set simply reports that it completed, and the number of rows that it INSERTed/UPDATEd/DELETEdd. It does not return rows. The delete has been completed once the MERGE result set is available.
      Specified by:
      getMergeResultSet in interface ResultSetFactory
      Parameters:
      drivingLeftJoin - the result set from which to take rows to be drive the INSERT/UPDATE/DELETE operations.
      Returns:
      the MERGE operation as a result set.
      Throws:
      StandardException - thrown on error
      See Also:

    • getDeleteCascadeResultSet

      public ResultSet getDeleteCascadeResultSet(NoPutResultSet source, int constantActionItem, ResultSet[] dependentResultSets, String resultSetId) throws StandardException
      Description copied from interface: ResultSetFactory
      A delete Cascade result set simply reports that it completed, and the number of rows deleted. It does not return rows. The delete has been completed once the delete result set is available.
      Specified by:
      getDeleteCascadeResultSet in interface ResultSetFactory
      Parameters:
      source - the result set from which to take rows to be deleted from the target table.
      constantActionItem - a constant action saved object reference
      dependentResultSets - an array of DeleteCascade Resultsets for the current table referential action dependents tables.
      resultSetId - an Id which is used to store the refence to the temporary result set created of the materilized rows.Dependent table resultsets uses the same id to access their parent temporary result sets.
      Returns:
      the delete operation as a delete cascade result set.
      Throws:
      StandardException - thrown on error
      See Also:

    • getUpdateResultSet

      public ResultSet getUpdateResultSet(NoPutResultSet source, GeneratedMethod generationClauses, GeneratedMethod checkGM) throws StandardException
      Description copied from interface: ResultSetFactory
      An update result set simply reports that it completed, and the number of rows updated. It does not return rows. The update has been completed once the update result set is available.
      Specified by:
      getUpdateResultSet in interface ResultSetFactory
      Parameters:
      source - the result set from which to take rows to be updated in the target table. This result set must contain a column which provides RowLocations that are valid in the target table, and new values to be placed in those rows.
      generationClauses - The code to compute column generation clauses if any
      checkGM - The code to enforce the check constraints, if any
      Returns:
      the update operation as a result set.
      Throws:
      StandardException - thrown on error
      See Also:

    • getUpdateVTIResultSet

      public ResultSet getUpdateVTIResultSet(NoPutResultSet source) throws StandardException
      Specified by:
      getUpdateVTIResultSet in interface ResultSetFactory
      Parameters:
      source - the result set from which to take rows to be updated in the target table.
      Returns:
      the update operation as a result set.
      Throws:
      StandardException - thrown on error
      See Also:

    • getDeleteCascadeUpdateResultSet

      public ResultSet getDeleteCascadeUpdateResultSet(NoPutResultSet source, GeneratedMethod generationClauses, GeneratedMethod checkGM, int constantActionItem, int rsdItem) throws StandardException
      Description copied from interface: ResultSetFactory
      An update result set simply reports that it completed, and the number of rows updated. It does not return rows. The update has been completed once the update result set is available.
      Specified by:
      getDeleteCascadeUpdateResultSet in interface ResultSetFactory
      Parameters:
      source - the result set from which to take rows to be updated in the target table. This result set must contain a column which provides RowLocations that are valid in the target table, and new values to be placed in those rows.
      generationClauses - The code to compute generated columns, if any
      checkGM - The code to enforce the check constraints, if any
      constantActionItem - a constant action saved object reference
      rsdItem - result Description, saved object id.
      Returns:
      the update operation as a result set.
      Throws:
      StandardException - thrown on error
      See Also:

    • getCallStatementResultSet

      public ResultSet getCallStatementResultSet(GeneratedMethod methodCall, Activation activation) throws StandardException
      Description copied from interface: ResultSetFactory
      A call statement result set simply reports that it completed. It does not return rows.
      Specified by:
      getCallStatementResultSet in interface ResultSetFactory
      Parameters:
      methodCall - a reference to a method in the activation for the method call
      activation - the activation for this result set
      Returns:
      the call statement operation as a result set.
      Throws:
      StandardException - thrown on error
      See Also:

    • getProjectRestrictResultSet

      public NoPutResultSet getProjectRestrictResultSet(NoPutResultSet source, GeneratedMethod restriction, GeneratedMethod projection, int resultSetNumber, GeneratedMethod constantRestriction, int mapRefItem, int cloneMapItem, boolean reuseResult, boolean doesProjection, boolean validatingCheckConstraint, String validatingBaseTableUUIDString, double optimizerEstimatedRowCount, double optimizerEstimatedCost) throws StandardException
      Description copied from interface: ResultSetFactory
      A project restrict result set iterates over its source, evaluating a restriction and when it is satisfied, constructing a row to return in its result set based on its projection. The rows can be constructed as they are requested from the result set.
      Specified by:
      getProjectRestrictResultSet in interface ResultSetFactory
      Parameters:
      source - the result set from which to take rows to be filtered by this operation.
      restriction - a reference to a method in the activation that is applied to the activation's "current row" field to determine whether the restriction is satisfied or not. The signature of this method is Boolean restriction() throws StandardException;
      projection - a reference to a method in the activation that is applied to the activation's "current row" field to project out the expected result row. The signature of this method is ExecRow projection() throws StandardException;
      resultSetNumber - The resultSetNumber for the ResultSet
      constantRestriction - a reference to a method in the activation that represents a constant expression (eg where 1 = 2). The signature of this method is Boolean restriction() throws StandardException;
      mapRefItem - Item # for mapping of source to target columns
      cloneMapItem - Item # for columns that need cloning
      reuseResult - Whether or not to reuse the result row.
      doesProjection - Whether or not this PRN does a projection
      validatingCheckConstraint - true if this PRN is used to for validating a deferred check constraint.
      validatingBaseTableUUIDString - The uuid for the table being validated.
      optimizerEstimatedRowCount - Estimated total # of rows by optimizer
      optimizerEstimatedCost - Estimated total cost by optimizer
      Returns:
      the project restrict operation as a result set.
      Throws:
      StandardException - thrown on error
      See Also:

    • getHashTableResultSet

      public NoPutResultSet getHashTableResultSet(NoPutResultSet source, GeneratedMethod singleTableRestriction, Qualifier[][] equijoinQualifiers, GeneratedMethod projection, int resultSetNumber, int mapRefItem, boolean reuseResult, int keyColItem, boolean removeDuplicates, long maxInMemoryRowCount, int initialCapacity, float loadFactor, double optimizerEstimatedRowCount, double optimizerEstimatedCost) throws StandardException
      Description copied from interface: ResultSetFactory
      A hash table result set builds a hash table on its source, applying a list of predicates, if any, to the source, when building the hash table. It then does a look up into the hash table on a probe. The rows can be constructed as they are requested from the result set.
      Specified by:
      getHashTableResultSet in interface ResultSetFactory
      Parameters:
      source - the result set from which to take rows to be filtered by this operation.
      singleTableRestriction - restriction, if any, applied to input of hash table.
      equijoinQualifiers - Qualifier[] for look up into hash table
      projection - a reference to a method in the activation that is applied to the activation's "current row" field to project out the expected result row. The signature of this method is ExecRow projection() throws StandardException;
      resultSetNumber - The resultSetNumber for the ResultSet
      mapRefItem - Item # for mapping of source to target columns
      reuseResult - Whether or not to reuse the result row.
      keyColItem - Item for hash key column array
      removeDuplicates - Whether or not to remove duplicates when building the hash table
      maxInMemoryRowCount - Max size of in-memory hash table
      initialCapacity - initialCapacity for java.util.HashTable
      loadFactor - loadFactor for java.util.HashTable
      optimizerEstimatedRowCount - Estimated total # of rows by optimizer
      optimizerEstimatedCost - Estimated total cost by optimizer
      Returns:
      the project restrict operation as a result set.
      Throws:
      StandardException - thrown on error
      See Also:

    • getSortResultSet

      public NoPutResultSet getSortResultSet(NoPutResultSet source, boolean distinct, boolean isInSortedOrder, int orderItem, int rowAllocator, int maxRowSize, int resultSetNumber, double optimizerEstimatedRowCount, double optimizerEstimatedCost) throws StandardException
      Description copied from interface: ResultSetFactory
      A sort result set sorts its source and if requested removes duplicates. It will generate the entire result when open, and then return it a row at a time.

      If passed aggregates it will do scalar or vector aggregate processing. A list of aggregator information is passed off of the PreparedStatement's savedObjects. Aggregation and SELECT DISTINCT cannot be processed in the same sort.

      Specified by:
      getSortResultSet in interface ResultSetFactory
      Parameters:
      source - the result set from which to take rows to be filtered by this operation.
      distinct - true if distinct SELECT list
      isInSortedOrder - true if the source result set is in sorted order
      orderItem - entry in preparedStatement's savedObjects for order
      rowAllocator - a reference to a saved object that generates rows of the right size and shape for the source
      maxRowSize - the size of the row that is allocated by rowAllocator. size should be the maximum size of the sum of all the datatypes. user type are necessarily approximated
      resultSetNumber - The resultSetNumber for the ResultSet
      optimizerEstimatedRowCount - Estimated total # of rows by optimizer
      optimizerEstimatedCost - Estimated total cost by optimizer
      Returns:
      the distinct operation as a result set.
      Throws:
      StandardException - thrown on error
      See Also:

    • getScalarAggregateResultSet

      public NoPutResultSet getScalarAggregateResultSet(NoPutResultSet source, boolean isInSortedOrder, int aggregateItem, int orderItem, int rowAllocator, int maxRowSize, int resultSetNumber, boolean singleInputRow, double optimizerEstimatedRowCount, double optimizerEstimatedCost) throws StandardException
      Description copied from interface: ResultSetFactory
      A ScalarAggregateResultSet computes non-distinct scalar aggregates. It will compute the aggregates when open.
      Specified by:
      getScalarAggregateResultSet in interface ResultSetFactory
      Parameters:
      source - the result set from which to take rows to be filtered by this operation.
      isInSortedOrder - true if the source result set is in sorted order
      aggregateItem - entry in preparedStatement's savedObjects for aggregates
      orderItem - Ignored to allow same signature as getDistinctScalarAggregateResultSet
      rowAllocator - a reference to a saved object that generates rows of the right size and shape for the source
      maxRowSize - Ignored to allow same signature as getDistinctScalarAggregateResultSet
      resultSetNumber - The resultSetNumber for the ResultSet
      singleInputRow - Whether we know we have a single input row or not
      optimizerEstimatedRowCount - Estimated total # of rows by optimizer
      optimizerEstimatedCost - Estimated total cost by optimizer
      Returns:
      the scalar aggregation operation as a result set.
      Throws:
      StandardException - thrown on error
      See Also:

    • getDistinctScalarAggregateResultSet

      public NoPutResultSet getDistinctScalarAggregateResultSet(NoPutResultSet source, boolean isInSortedOrder, int aggregateItem, int orderItem, int rowAllocator, int maxRowSize, int resultSetNumber, boolean singleInputRow, double optimizerEstimatedRowCount, double optimizerEstimatedCost) throws StandardException
      Description copied from interface: ResultSetFactory
      A DistinctScalarAggregateResultSet computes scalar aggregates when at least one of them is a distinct aggregate. It will compute the aggregates when open.
      Specified by:
      getDistinctScalarAggregateResultSet in interface ResultSetFactory
      Parameters:
      source - the result set from which to take rows to be filtered by this operation.
      isInSortedOrder - true if the source result set is in sorted order
      aggregateItem - entry in preparedStatement's savedObjects for aggregates
      orderItem - entry in preparedStatement's savedObjects for order
      rowAllocator - a reference to a saved object that generates rows of the right size and shape for the source
      maxRowSize - the size of the row that is allocated by rowAllocator. size should be the maximum size of the sum of all the datatypes. user type are necessarily approximated
      resultSetNumber - The resultSetNumber for the ResultSet
      singleInputRow - Whether we know we have a single input row or not
      optimizerEstimatedRowCount - Estimated total # of rows by optimizer
      optimizerEstimatedCost - Estimated total cost by optimizer
      Returns:
      the scalar aggregation operation as a result set.
      Throws:
      StandardException - thrown on error
      See Also:

    • getGroupedAggregateResultSet

      public NoPutResultSet getGroupedAggregateResultSet(NoPutResultSet source, boolean isInSortedOrder, int aggregateItem, int orderItem, int rowAllocator, int maxRowSize, int resultSetNumber, double optimizerEstimatedRowCount, double optimizerEstimatedCost, boolean isRollup) throws StandardException
      Description copied from interface: ResultSetFactory
      A GroupedAggregateResultSet computes non-distinct grouped aggregates. It will compute the aggregates when open.
      Specified by:
      getGroupedAggregateResultSet in interface ResultSetFactory
      Parameters:
      source - the result set from which to take rows to be filtered by this operation.
      isInSortedOrder - true if the source result set is in sorted order
      aggregateItem - entry in preparedStatement's savedObjects for aggregates
      orderItem - Ignored to allow same signature as getDistinctScalarAggregateResultSet
      rowAllocator - a reference to a saved object that generates rows of the right size and shape for the source
      maxRowSize - Ignored to allow same signature as getDistinctScalarAggregateResultSet
      resultSetNumber - The resultSetNumber for the ResultSet
      optimizerEstimatedRowCount - Estimated total # of rows by optimizer
      optimizerEstimatedCost - Estimated total cost by optimizer
      isRollup - true if this is a GROUP BY ROLLUP()
      Returns:
      the scalar aggregation operation as a result set.
      Throws:
      StandardException - thrown on error
      See Also:

    • getDistinctGroupedAggregateResultSet

      public NoPutResultSet getDistinctGroupedAggregateResultSet(NoPutResultSet source, boolean isInSortedOrder, int aggregateItem, int orderItem, int rowAllocator, int maxRowSize, int resultSetNumber, double optimizerEstimatedRowCount, double optimizerEstimatedCost, boolean isRollup) throws StandardException
      Description copied from interface: ResultSetFactory
      A DistinctGroupedAggregateResultSet computes scalar aggregates when at least one of them is a distinct aggregate. It will compute the aggregates when open.
      Specified by:
      getDistinctGroupedAggregateResultSet in interface ResultSetFactory
      Parameters:
      source - the result set from which to take rows to be filtered by this operation.
      isInSortedOrder - true if the source result set is in sorted order
      aggregateItem - entry in preparedStatement's savedObjects for aggregates
      orderItem - entry in preparedStatement's savedObjects for order
      rowAllocator - a reference to a saved object that generates rows of the right size and shape for the source
      maxRowSize - the size of the row that is allocated by rowAllocator. size should be the maximum size of the sum of all the datatypes. user type are necessarily approximated
      resultSetNumber - The resultSetNumber for the ResultSet
      optimizerEstimatedRowCount - Estimated total # of rows by optimizer
      optimizerEstimatedCost - Estimated total cost by optimizer
      isRollup - true if this is a GROUP BY ROLLUP()
      Returns:
      the scalar aggregation operation as a result set.
      Throws:
      StandardException - thrown on error
      See Also:

    • getAnyResultSet

      public NoPutResultSet getAnyResultSet(NoPutResultSet source, GeneratedMethod emptyRowFun, int resultSetNumber, int subqueryNumber, int pointOfAttachment, double optimizerEstimatedRowCount, double optimizerEstimatedCost) throws StandardException
      Description copied from interface: ResultSetFactory
      An any result set iterates over its source, returning a row with all columns set to nulls if the source returns no rows.
      Specified by:
      getAnyResultSet in interface ResultSetFactory
      Parameters:
      source - the result set from which to take rows to be filtered by this operation.
      emptyRowFun - a reference to a method in the activation that is called if the source returns no rows
      resultSetNumber - The resultSetNumber for the ResultSet
      subqueryNumber - The subquery number for this subquery.
      pointOfAttachment - The point of attachment for this subquery.
      optimizerEstimatedRowCount - Estimated total # of rows by optimizer
      optimizerEstimatedCost - Estimated total cost by optimizer
      Returns:
      the any operation as a result set.
      Throws:
      StandardException - thrown on error
      See Also:

    • getOnceResultSet

      public NoPutResultSet getOnceResultSet(NoPutResultSet source, GeneratedMethod emptyRowFun, int cardinalityCheck, int resultSetNumber, int subqueryNumber, int pointOfAttachment, double optimizerEstimatedRowCount, double optimizerEstimatedCost) throws StandardException
      Description copied from interface: ResultSetFactory
      A once result set iterates over its source, raising an error if the source returns > 1 row and returning a row with all columns set to nulls if the source returns no rows.
      Specified by:
      getOnceResultSet in interface ResultSetFactory
      Parameters:
      source - the result set from which to take rows to be filtered by this operation.
      emptyRowFun - a reference to a method in the activation that is called if the source returns no rows
      cardinalityCheck - The type of cardinality check, if any that is required
      resultSetNumber - The resultSetNumber for the ResultSet
      subqueryNumber - The subquery number for this subquery.
      pointOfAttachment - The point of attachment for this subquery.
      optimizerEstimatedRowCount - Estimated total # of rows by optimizer
      optimizerEstimatedCost - Estimated total cost by optimizer
      Returns:
      the once operation as a result set.
      Throws:
      StandardException - thrown on error
      See Also:

    • getRowResultSet

      public NoPutResultSet getRowResultSet(Activation activation, GeneratedMethod row, boolean canCacheRow, int resultSetNumber, double optimizerEstimatedRowCount, double optimizerEstimatedCost)
      Description copied from interface: ResultSetFactory
      A row result set forms a result set on a single, known row value. It is used to turn constant rows into result sets for use in the result set paradigm. The row can be constructed when it is requested from the result set.
      Specified by:
      getRowResultSet in interface ResultSetFactory
      Parameters:
      activation - the activation for this result set, against which the row operation is performed to create the result set.
      row - a reference to a method in the activation that creates the expected row. ExecRow row() throws StandardException;
      canCacheRow - True if execution can cache the input row after it has gotten it. If the input row is constructed soley of constants or parameters, it is ok to cache this row rather than recreating it each time it is requested.
      resultSetNumber - The resultSetNumber for the ResultSet
      optimizerEstimatedRowCount - Estimated total # of rows by optimizer
      optimizerEstimatedCost - Estimated total cost by optimizer
      Returns:
      the row as a result set.
      See Also:

    • getVTIResultSet

      public NoPutResultSet getVTIResultSet(Activation activation, int row, int resultSetNumber, GeneratedMethod constructor, String javaClassName, Qualifier[][] pushedQualifiers, int erdNumber, boolean version2, boolean reuseablePs, int ctcNumber, boolean isTarget, int scanIsolationLevel, double optimizerEstimatedRowCount, double optimizerEstimatedCost, boolean isDerbyStyleTableFunction, int returnTypeNumber, int vtiProjectionNumber, int vtiRestrictionNumber, String vtiSchema, String vtiName) throws StandardException
      Description copied from interface: ResultSetFactory
      A VTI result set wraps a user supplied result set.
      Specified by:
      getVTIResultSet in interface ResultSetFactory
      Parameters:
      activation - the activation for this result set, against which the row operation is performed to create the result set.
      row - a reference to a saved object that creates the expected row.
      resultSetNumber - The resultSetNumber for the ResultSet
      constructor - The GeneratedMethod for the user's constructor
      javaClassName - The java class name for the VTI
      erdNumber - int for referenced column BitSet (so it can be turned back into an object)
      version2 - Whether or not VTI is a version 2 VTI.
      isTarget - Whether or not VTI is a target VTI.
      optimizerEstimatedRowCount - Estimated total # of rows by optimizer
      optimizerEstimatedCost - Estimated total cost by optimizer
      isDerbyStyleTableFunction - True if this is a Derby-style table function
      returnTypeNumber - Which saved object contains the return type (a multi-set) serialized as a byte array
      vtiProjectionNumber - Which saved object contains the projection for a RestrictedVTI
      vtiRestrictionNumber - Which saved object contains the restriction for a RestrictedVTI
      vtiSchema - Name of the schema holding the table function.
      vtiName - Name of the table function.
      Returns:
      the row as a result set.
      Throws:
      StandardException - thrown on error
      See Also:

    • getHashScanResultSet

      public NoPutResultSet getHashScanResultSet(Activation activation, long conglomId, int scociItem, int resultRowTemplate, int resultSetNumber, GeneratedMethod startKeyGetter, int startSearchOperator, GeneratedMethod stopKeyGetter, int stopSearchOperator, boolean sameStartStopPosition, Qualifier[][] scanQualifiers, Qualifier[][] nextQualifiers, int initialCapacity, float loadFactor, int maxCapacity, int hashKeyColumn, String tableName, String userSuppliedOptimizerOverrides, String indexName, boolean isConstraint, boolean forUpdate, int colRefItem, int indexColItem, int lockMode, boolean tableLocked, int isolationLevel, double optimizerEstimatedRowCount, double optimizerEstimatedCost) throws StandardException
      a hash scan generator, for ease of use at present.
      Specified by:
      getHashScanResultSet in interface ResultSetFactory
      Parameters:
      activation - the activation for this result set, which provides the context for the row allocation operation.
      conglomId - the conglomerate of the table to be scanned.
      scociItem - The saved item for the static conglomerate info.
      resultRowTemplate - The saved item for result row template.
      resultSetNumber - The resultSetNumber for the ResultSet
      startKeyGetter - a reference to a method in the activation that gets the start key indexable row for the scan. Null means there is no start key. ExecIndexRow startKeyGetter() throws StandardException;
      startSearchOperator - The start search operator for opening the scan
      stopKeyGetter - a reference to a method in the activation that gets the stop key indexable row for the scan. Null means there is no stop key. ExecIndexRow stopKeyGetter() throws StandardException;
      stopSearchOperator - The stop search operator for opening the scan
      sameStartStopPosition - Re-use the startKeyGetter for the stopKeyGetter (Exact match search.)
      scanQualifiers - the array of Qualifiers for the scan. Null or an array length of zero means there are no qualifiers.
      nextQualifiers - the array of Qualifiers for the look up into the hash table.
      initialCapacity - The initialCapacity for the HashTable.
      loadFactor - The loadFactor for the HashTable.
      maxCapacity - The maximum size for the HashTable.
      hashKeyColumn - The 0-based column # for the hash key.
      tableName - The full name of the table
      userSuppliedOptimizerOverrides - Overrides specified by the user on the sql
      indexName - The name of the index, if one used to access table.
      isConstraint - If index, if used, is a backing index for a constraint.
      forUpdate - True means open for update
      colRefItem - An saved item for a bitSet of columns that are referenced in the underlying table. -1 if no item.
      lockMode - The lock granularity to use (see TransactionController in access)
      tableLocked - Whether or not the table is marked as using table locking (in sys.systables)
      isolationLevel - Isolation level (specified or not) to use on scans
      optimizerEstimatedRowCount - Estimated total # of rows by optimizer
      optimizerEstimatedCost - Estimated total cost by optimizer
      Returns:
      the table scan operation as a result set.
      Throws:
      StandardException - thrown on error
      See Also:

    • getDistinctScanResultSet

      public NoPutResultSet getDistinctScanResultSet(Activation activation, long conglomId, int scociItem, int resultRowTemplate, int resultSetNumber, int hashKeyColumn, String tableName, String userSuppliedOptimizerOverrides, String indexName, boolean isConstraint, int colRefItem, int lockMode, boolean tableLocked, int isolationLevel, double optimizerEstimatedRowCount, double optimizerEstimatedCost) throws StandardException
      a distinct scan generator, for ease of use at present.
      Specified by:
      getDistinctScanResultSet in interface ResultSetFactory
      Parameters:
      activation - the activation for this result set, which provides the context for the row allocation operation.
      conglomId - the conglomerate of the table to be scanned.
      scociItem - The saved item for the static conglomerate info.
      resultRowTemplate - The saved item for result row template.
      resultSetNumber - The resultSetNumber for the ResultSet
      hashKeyColumn - The 0-based column # for the hash key.
      tableName - The full name of the table
      userSuppliedOptimizerOverrides - Overrides specified by the user on the sql
      indexName - The name of the index, if one used to access table.
      isConstraint - If index, if used, is a backing index for a constraint.
      colRefItem - An saved item for a bitSet of columns that are referenced in the underlying table. -1 if no item.
      lockMode - The lock granularity to use (see TransactionController in access)
      tableLocked - Whether or not the table is marked as using table locking (in sys.systables)
      isolationLevel - Isolation level (specified or not) to use on scans
      optimizerEstimatedRowCount - Estimated total # of rows by optimizer
      optimizerEstimatedCost - Estimated total cost by optimizer
      Returns:
      the table scan operation as a result set.
      Throws:
      StandardException - thrown on error
      See Also:

    • getTableScanResultSet

      public NoPutResultSet getTableScanResultSet(Activation activation, long conglomId, int scociItem, int resultRowTemplate, int resultSetNumber, GeneratedMethod startKeyGetter, int startSearchOperator, GeneratedMethod stopKeyGetter, int stopSearchOperator, boolean sameStartStopPosition, Qualifier[][] qualifiers, String tableName, String userSuppliedOptimizerOverrides, String indexName, boolean isConstraint, boolean forUpdate, int colRefItem, int indexColItem, int lockMode, boolean tableLocked, int isolationLevel, boolean oneRowScan, double optimizerEstimatedRowCount, double optimizerEstimatedCost) throws StandardException
      a minimal table scan generator, for ease of use at present.
      Specified by:
      getTableScanResultSet in interface ResultSetFactory
      Throws:
      StandardException - thrown on error
      See Also:

    • getValidateCheckConstraintResultSet

      public NoPutResultSet getValidateCheckConstraintResultSet(Activation activation, long conglomId, int scociItem, int resultRowTemplate, int resultSetNumber, GeneratedMethod startKeyGetter, int startSearchOperator, GeneratedMethod stopKeyGetter, int stopSearchOperator, boolean sameStartStopPosition, Qualifier[][] qualifiers, String tableName, String userSuppliedOptimizerOverrides, String indexName, boolean isConstraint, boolean forUpdate, int colRefItem, int indexColItem, int lockMode, boolean tableLocked, int isolationLevel, boolean oneRowScan, double optimizerEstimatedRowCount, double optimizerEstimatedCost) throws StandardException
      Description copied from interface: ResultSetFactory
      A table scan result set forms a result set on a scan of a table. The rows can be constructed as they are requested from the result set.

      This form of the table scan operation is simple, and is to be used when there are no predicates to be passed down to the scan to limit its scope on the target table.

      Specified by:
      getValidateCheckConstraintResultSet in interface ResultSetFactory
      Parameters:
      activation - the activation for this result set, which provides the context for the row allocation operation.
      conglomId - the conglomerate of the table to be scanned.
      scociItem - The saved item for the static conglomerate info.
      resultRowTemplate - The saved item for result row template.
      resultSetNumber - The resultSetNumber for the ResultSet
      startKeyGetter - a reference to a method in the activation that gets the start key indexable row for the scan. Null means there is no start key. ExecIndexRow startKeyGetter() throws StandardException;
      startSearchOperator - The start search operator for opening the scan
      stopKeyGetter - a reference to a method in the activation that gets the stop key indexable row for the scan. Null means there is no stop key. ExecIndexRow stopKeyGetter() throws StandardException;
      stopSearchOperator - The stop search operator for opening the scan
      sameStartStopPosition - Re-use the startKeyGetter for the stopKeyGetter (Exact match search.)
      qualifiers - the array of Qualifiers for the scan. Null or an array length of zero means there are no qualifiers.
      tableName - The full name of the table
      userSuppliedOptimizerOverrides - Overrides specified by the user on the sql
      indexName - The name of the index, if one used to access table.
      isConstraint - If index, if used, is a backing index for a constraint.
      forUpdate - True means open for update
      colRefItem - An saved item for a bitSet of columns that are referenced in the underlying table. -1 if no item.
      lockMode - The lock granularity to use (see TransactionController in access)
      tableLocked - Whether or not the table is marked as using table locking (in sys.systables)
      isolationLevel - Isolation level (specified or not) to use on scans
      oneRowScan - Whether or not this is a 1 row scan.
      optimizerEstimatedRowCount - Estimated total # of rows by optimizer
      optimizerEstimatedCost - Estimated total cost by optimizer
      Returns:
      the table scan operation as a result set.
      Throws:
      StandardException - thrown when unable to create the result set

    • getBulkTableScanResultSet

      public NoPutResultSet getBulkTableScanResultSet(Activation activation, long conglomId, int scociItem, int resultRowTemplate, int resultSetNumber, GeneratedMethod startKeyGetter, int startSearchOperator, GeneratedMethod stopKeyGetter, int stopSearchOperator, boolean sameStartStopPosition, Qualifier[][] qualifiers, String tableName, String userSuppliedOptimizerOverrides, String indexName, boolean isConstraint, boolean forUpdate, int colRefItem, int indexColItem, int lockMode, boolean tableLocked, int isolationLevel, int rowsPerRead, boolean disableForHoldable, boolean oneRowScan, double optimizerEstimatedRowCount, double optimizerEstimatedCost) throws StandardException
      Table/Index scan where rows are read in bulk
      Specified by:
      getBulkTableScanResultSet in interface ResultSetFactory
      Parameters:
      activation - the activation for this result set, which provides the context for the row allocation operation.
      conglomId - the conglomerate of the table to be scanned.
      scociItem - The saved item for the static conglomerate info.
      resultRowTemplate - The saved item for result row template.
      resultSetNumber - The resultSetNumber for the ResultSet
      startKeyGetter - a reference to a method in the activation that gets the start key indexable row for the scan. Null means there is no start key. ExecIndexRow startKeyGetter() throws StandardException;
      startSearchOperator - The start search operator for opening the scan
      stopKeyGetter - a reference to a method in the activation that gets the stop key indexable row for the scan. Null means there is no stop key. ExecIndexRow stopKeyGetter() throws StandardException;
      stopSearchOperator - The stop search operator for opening the scan
      sameStartStopPosition - Re-use the startKeyGetter for the stopKeyGetter (Exact match search.)
      qualifiers - the array of Qualifiers for the scan. Null or an array length of zero means there are no qualifiers.
      tableName - The full name of the table
      userSuppliedOptimizerOverrides - Overrides specified by the user on the sql
      indexName - The name of the index, if one used to access table.
      isConstraint - If index, if used, is a backing index for a constraint.
      forUpdate - True means open for update
      colRefItem - An saved item for a bitSet of columns that are referenced in the underlying table. -1 if no item.
      lockMode - The lock granularity to use (see TransactionController in access)
      tableLocked - Whether or not the table is marked as using table locking (in sys.systables)
      isolationLevel - Isolation level (specified or not) to use on scans
      rowsPerRead - The number of rows to read per fetch.
      disableForHoldable - Whether or not bulk fetch should be disabled at runtime if the cursor is holdable.
      oneRowScan - Whether or not this is a 1 row scan.
      optimizerEstimatedRowCount - Estimated total # of rows by optimizer
      optimizerEstimatedCost - Estimated total cost by optimizer
      Returns:
      the table scan operation as a result set.
      Throws:
      StandardException - thrown on error
      See Also:

    • getMultiProbeTableScanResultSet

      public NoPutResultSet getMultiProbeTableScanResultSet(Activation activation, long conglomId, int scociItem, int resultRowTemplate, int resultSetNumber, GeneratedMethod startKeyGetter, int startSearchOperator, GeneratedMethod stopKeyGetter, int stopSearchOperator, boolean sameStartStopPosition, Qualifier[][] qualifiers, DataValueDescriptor[] probeVals, int sortRequired, String tableName, String userSuppliedOptimizerOverrides, String indexName, boolean isConstraint, boolean forUpdate, int colRefItem, int indexColItem, int lockMode, boolean tableLocked, int isolationLevel, boolean oneRowScan, double optimizerEstimatedRowCount, double optimizerEstimatedCost) throws StandardException
      Multi-probing scan that probes an index for specific values contained in the received probe list. All index rows for which the first column equals probeVals[0] will be returned, followed by all rows for which the first column equals probeVals[1], and so on. Assumption is that we only get here if probeVals has at least one value.
      Specified by:
      getMultiProbeTableScanResultSet in interface ResultSetFactory
      Parameters:
      probeVals - List of values with which to probe the underlying table. Should not be null.
      sortRequired - Which type of sort we need for the values (ascending, descending, or none).
      Throws:
      StandardException - thrown on error
      See Also:

    • getIndexRowToBaseRowResultSet

      public NoPutResultSet getIndexRowToBaseRowResultSet(long conglomId, int scociItem, NoPutResultSet source, int resultRowAllocator, int resultSetNumber, String indexName, int heapColRefItem, int allColRefItem, int heapOnlyColRefItem, int indexColMapItem, GeneratedMethod restriction, boolean forUpdate, double optimizerEstimatedRowCount, double optimizerEstimatedCost, int baseColumnCount) throws StandardException
      Description copied from interface: ResultSetFactory
      An index row to base row result set gets an index row from its source and uses the RowLocation in its last column to get the row from the base conglomerate.

      Specified by:
      getIndexRowToBaseRowResultSet in interface ResultSetFactory
      Parameters:
      conglomId - Conglomerate # for the heap.
      scociItem - The saved item for the static conglomerate info.
      source - the source result set, which is expected to provide rows from an index conglomerate
      resultRowAllocator - a reference to a method in the activation that creates a holder for the rows from the scan. ExecRow rowAllocator() throws StandardException;
      resultSetNumber - The resultSetNumber for the ResultSet
      indexName - The name of the index.
      heapColRefItem - A saved item for a bitImpl of columns that are referenced in the underlying heap. -1 if no item.
      allColRefItem - A saved item for a bitImpl of columns that are referenced in the underlying index and heap. -1 if no item.
      heapOnlyColRefItem - A saved item for a bitImpl of columns that are referenced in the underlying heap only. -1 if no item.
      indexColMapItem - A saved item for a ReferencedColumnsDescriptorImpl which tell which columms are coming from the index.
      restriction - The restriction, if any, to be applied to the base row
      forUpdate - True means to open for update
      optimizerEstimatedRowCount - Estimated total # of rows by optimizer
      optimizerEstimatedCost - Estimated total cost by optimizer
      baseColumnCount - Number of columns in the base table
      Returns:
      the index row to base row operation as a result set.
      Throws:
      StandardException - Thrown on error
      See Also:

    • getWindowResultSet

      public NoPutResultSet getWindowResultSet(Activation activation, NoPutResultSet source, int rowAllocator, int resultSetNumber, int erdNumber, GeneratedMethod restriction, double optimizerEstimatedRowCount, double optimizerEstimatedCost) throws StandardException
      Description copied from interface: ResultSetFactory
      A OLAP window on top of a regular result set. It is used to realize window functions.

      Specified by:
      getWindowResultSet in interface ResultSetFactory
      Parameters:
      activation - Activation
      source - The result set input to this result set.
      rowAllocator - A reference to a saved object that generates rows of the right size and shape for the source.
      resultSetNumber - The resultSetNumber for the ResultSet
      erdNumber - Int for ResultDescription (so it can be turned back into an object)
      restriction - The restriction, if any, to be applied to the base row
      optimizerEstimatedRowCount - Estimated total # of rows by optimizer
      optimizerEstimatedCost - Estimated total cost by optimizer
      Throws:
      StandardException - Thrown on error
      See Also:

    • getNestedLoopJoinResultSet

      public NoPutResultSet getNestedLoopJoinResultSet(NoPutResultSet leftResultSet, int leftNumCols, NoPutResultSet rightResultSet, int rightNumCols, GeneratedMethod joinClause, int resultSetNumber, boolean oneRowRightSide, boolean notExistsRightSide, double optimizerEstimatedRowCount, double optimizerEstimatedCost, String userSuppliedOptimizerOverrides) throws StandardException
      Description copied from interface: ResultSetFactory
      A nested loop left outer join result set forms a result set on top of 2 other result sets. The rows can be constructed as they are requested from the result set.

      This form of the nested loop join operation is simple, and is to be used when there are no join predicates to be passed down to the join to limit its scope on the right ResultSet.

      Specified by:
      getNestedLoopJoinResultSet in interface ResultSetFactory
      Parameters:
      leftResultSet - Outer ResultSet for join.
      leftNumCols - Number of columns in the leftResultSet
      rightResultSet - Inner ResultSet for join.
      rightNumCols - Number of columns in the rightResultSet
      joinClause - a reference to a method in the activation that is applied to the activation's "current row" field to determine whether the joinClause is satisfied or not. The signature of this method is Boolean joinClause() throws StandardException;
      resultSetNumber - The resultSetNumber for the ResultSet
      oneRowRightSide - boolean, whether or not the right side returns a single row. (No need to do 2nd next() if it does.)
      notExistsRightSide - boolean, whether or not the right side resides a NOT EXISTS base table
      optimizerEstimatedRowCount - Estimated total # of rows by optimizer
      optimizerEstimatedCost - Estimated total cost by optimizer
      userSuppliedOptimizerOverrides - Overrides specified by the user on the sql
      Returns:
      the nested loop join operation as a result set.
      Throws:
      StandardException - thrown on error
      See Also:

    • getHashJoinResultSet

      public NoPutResultSet getHashJoinResultSet(NoPutResultSet leftResultSet, int leftNumCols, NoPutResultSet rightResultSet, int rightNumCols, GeneratedMethod joinClause, int resultSetNumber, boolean oneRowRightSide, boolean notExistsRightSide, double optimizerEstimatedRowCount, double optimizerEstimatedCost, String userSuppliedOptimizerOverrides) throws StandardException
      Description copied from interface: ResultSetFactory
      A hash join.
      Specified by:
      getHashJoinResultSet in interface ResultSetFactory
      Parameters:
      leftResultSet - Outer ResultSet for join.
      leftNumCols - Number of columns in the leftResultSet
      rightResultSet - Inner ResultSet for join.
      rightNumCols - Number of columns in the rightResultSet
      joinClause - a reference to a method in the activation that is applied to the activation's "current row" field to determine whether the joinClause is satisfied or not. The signature of this method is Boolean joinClause() throws StandardException;
      resultSetNumber - The resultSetNumber for the ResultSet
      oneRowRightSide - boolean, whether or not the right side returns a single row. (No need to do 2nd next() if it does.)
      notExistsRightSide - boolean, whether or not the right side resides a NOT EXISTS base table
      optimizerEstimatedRowCount - Estimated total # of rows by optimizer
      optimizerEstimatedCost - Estimated total cost by optimizer
      userSuppliedOptimizerOverrides - Overrides specified by the user on the sql
      Returns:
      the nested loop join operation as a result set.
      Throws:
      StandardException - thrown on error
      See Also:

    • getNestedLoopLeftOuterJoinResultSet

      public NoPutResultSet getNestedLoopLeftOuterJoinResultSet(NoPutResultSet leftResultSet, int leftNumCols, NoPutResultSet rightResultSet, int rightNumCols, GeneratedMethod joinClause, int resultSetNumber, GeneratedMethod emptyRowFun, boolean wasRightOuterJoin, boolean oneRowRightSide, boolean notExistsRightSide, double optimizerEstimatedRowCount, double optimizerEstimatedCost, String userSuppliedOptimizerOverrides) throws StandardException
      Description copied from interface: ResultSetFactory
      A nested loop join result set forms a result set on top of 2 other result sets. The rows can be constructed as they are requested from the result set.

      This form of the nested loop join operation is simple, and is to be used when there are no join predicates to be passed down to the join to limit its scope on the right ResultSet.

      Specified by:
      getNestedLoopLeftOuterJoinResultSet in interface ResultSetFactory
      Parameters:
      leftResultSet - Outer ResultSet for join.
      leftNumCols - Number of columns in the leftResultSet
      rightResultSet - Inner ResultSet for join.
      rightNumCols - Number of columns in the rightResultSet
      joinClause - a reference to a method in the activation that is applied to the activation's "current row" field to determine whether the joinClause is satisfied or not. The signature of this method is Boolean joinClause() throws StandardException;
      resultSetNumber - The resultSetNumber for the ResultSet
      emptyRowFun - a reference to a method in the activation that is called if the right child returns no rows
      wasRightOuterJoin - Whether or not this was originally a right outer join
      oneRowRightSide - boolean, whether or not the right side returns a single row. (No need to do 2nd next() if it does.)
      notExistsRightSide - boolean, whether or not the right side resides a NOT EXISTS base table
      optimizerEstimatedRowCount - Estimated total # of rows by optimizer
      optimizerEstimatedCost - Estimated total cost by optimizer
      userSuppliedOptimizerOverrides - Overrides specified by the user on the sql
      Returns:
      the nested loop join operation as a result set.
      Throws:
      StandardException - thrown on error
      See Also:

    • getHashLeftOuterJoinResultSet

      public NoPutResultSet getHashLeftOuterJoinResultSet(NoPutResultSet leftResultSet, int leftNumCols, NoPutResultSet rightResultSet, int rightNumCols, GeneratedMethod joinClause, int resultSetNumber, GeneratedMethod emptyRowFun, boolean wasRightOuterJoin, boolean oneRowRightSide, boolean notExistsRightSide, double optimizerEstimatedRowCount, double optimizerEstimatedCost, String userSuppliedOptimizerOverrides) throws StandardException
      Description copied from interface: ResultSetFactory
      A left outer join using a hash join.
      Specified by:
      getHashLeftOuterJoinResultSet in interface ResultSetFactory
      Parameters:
      leftResultSet - Outer ResultSet for join.
      leftNumCols - Number of columns in the leftResultSet
      rightResultSet - Inner ResultSet for join.
      rightNumCols - Number of columns in the rightResultSet
      joinClause - a reference to a method in the activation that is applied to the activation's "current row" field to determine whether the joinClause is satisfied or not. The signature of this method is Boolean joinClause() throws StandardException;
      resultSetNumber - The resultSetNumber for the ResultSet
      emptyRowFun - a reference to a method in the activation that is called if the right child returns no rows
      wasRightOuterJoin - Whether or not this was originally a right outer join
      oneRowRightSide - boolean, whether or not the right side returns a single row. (No need to do 2nd next() if it does.)
      notExistsRightSide - boolean, whether or not the right side resides a NOT EXISTS base table
      optimizerEstimatedRowCount - Estimated total # of rows by optimizer
      optimizerEstimatedCost - Estimated total cost by optimizer
      userSuppliedOptimizerOverrides - Overrides specified by the user on the sql
      Returns:
      the nested loop join operation as a result set.
      Throws:
      StandardException - thrown on error
      See Also:

    • getSetTransactionResultSet

      public ResultSet getSetTransactionResultSet(Activation activation) throws StandardException
      Specified by:
      getSetTransactionResultSet in interface ResultSetFactory
      Parameters:
      activation - the activation for this result set
      Returns:
      ResultSet A wrapper result set to run the Execution-time logic.
      Throws:
      StandardException - thrown when unable to create the result set
      See Also:

    • getMaterializedResultSet

      public NoPutResultSet getMaterializedResultSet(NoPutResultSet source, int resultSetNumber, double optimizerEstimatedRowCount, double optimizerEstimatedCost) throws StandardException
      Description copied from interface: ResultSetFactory
      A ResultSet which materializes the underlying ResultSet tree into a temp table on the 1st open. All subsequent "scans" of this ResultSet will return results from the temp table.
      Specified by:
      getMaterializedResultSet in interface ResultSetFactory
      Parameters:
      source - the result set input to this result set.
      resultSetNumber - The resultSetNumber for the ResultSet
      optimizerEstimatedRowCount - Estimated total # of rows by optimizer
      optimizerEstimatedCost - Estimated total cost by optimizer
      Returns:
      the materialization operation as a result set.
      Throws:
      StandardException - thrown on error
      See Also:

    • getScrollInsensitiveResultSet

      public NoPutResultSet getScrollInsensitiveResultSet(NoPutResultSet source, Activation activation, int resultSetNumber, int sourceRowWidth, boolean scrollable, double optimizerEstimatedRowCount, double optimizerEstimatedCost) throws StandardException
      Description copied from interface: ResultSetFactory
      A ResultSet which provides the insensitive scrolling functionality for the underlying result set by materializing the underlying ResultSet tree into a hash table while scrolling forward.
      Specified by:
      getScrollInsensitiveResultSet in interface ResultSetFactory
      Parameters:
      source - the result set input to this result set.
      activation - the activation for this result set, which provides the context for normalization.
      resultSetNumber - The resultSetNumber for the ResultSet
      sourceRowWidth - The # of columns in the source row.
      optimizerEstimatedRowCount - Estimated total # of rows by optimizer
      optimizerEstimatedCost - Estimated total cost by optimizer
      Returns:
      the materialization operation as a result set.
      Throws:
      StandardException - thrown on error
      See Also:

    • getNormalizeResultSet

      public NoPutResultSet getNormalizeResultSet(NoPutResultSet source, int resultSetNumber, int erdNumber, double optimizerEstimatedRowCount, double optimizerEstimatedCost, boolean forUpdate) throws StandardException
      Description copied from interface: ResultSetFactory
      REMIND: needs more description...
      Specified by:
      getNormalizeResultSet in interface ResultSetFactory
      Parameters:
      source - the result set input to this result set.
      resultSetNumber - The resultSetNumber for the ResultSet
      erdNumber - int for ResultDescription (so it can be turned back into an object)
      optimizerEstimatedRowCount - Estimated total # of rows by optimizer
      optimizerEstimatedCost - Estimated total cost by optimizer
      Returns:
      the normalization operation as a result set.
      Throws:
      StandardException - thrown on error
      See Also:

    • getCurrentOfResultSet

      public NoPutResultSet getCurrentOfResultSet(String cursorName, Activation activation, int resultSetNumber)
      Description copied from interface: ResultSetFactory
      A current of result set forms a result set on the current row of an open cursor. It is used to perform positioned operations such as positioned update and delete, using the result set paradigm.
      Specified by:
      getCurrentOfResultSet in interface ResultSetFactory
      Parameters:
      cursorName - the name of the cursor providing the row.
      resultSetNumber - The resultSetNumber for the ResultSet
      See Also:

    • getDDLResultSet

      public ResultSet getDDLResultSet(Activation activation) throws StandardException
      Description copied from interface: ResultSetFactory
      Generic DDL result set creation.
      Specified by:
      getDDLResultSet in interface ResultSetFactory
      Parameters:
      activation - the activation for this result set
      Returns:
      ResultSet A wrapper result set to run the Execution-time logic.
      Throws:
      StandardException - thrown on error
      See Also:

    • getMiscResultSet

      public ResultSet getMiscResultSet(Activation activation) throws StandardException
      Description copied from interface: ResultSetFactory
      Generic Misc result set creation.
      Specified by:
      getMiscResultSet in interface ResultSetFactory
      Parameters:
      activation - the activation for this result set
      Returns:
      ResultSet A wrapper result set to run the Execution-time logic.
      Throws:
      StandardException - thrown on error
      See Also:

    • getUnionResultSet

      public NoPutResultSet getUnionResultSet(NoPutResultSet leftResultSet, NoPutResultSet rightResultSet, int resultSetNumber, double optimizerEstimatedRowCount, double optimizerEstimatedCost) throws StandardException
      a minimal union scan generator, for ease of use at present.
      Specified by:
      getUnionResultSet in interface ResultSetFactory
      Parameters:
      leftResultSet - The first ResultSet whose rows go into the union
      rightResultSet - The second ResultSet whose rows go into the union
      resultSetNumber - The resultSetNumber for the ResultSet
      optimizerEstimatedRowCount - Estimated total # of rows by optimizer
      optimizerEstimatedCost - Estimated total cost by optimizer
      Returns:
      A ResultSet from which the caller can get the union of the two source ResultSets.
      Throws:
      StandardException - thrown on error
      See Also:

    • getSetOpResultSet

      public NoPutResultSet getSetOpResultSet(NoPutResultSet leftSource, NoPutResultSet rightSource, Activation activation, int resultSetNumber, long optimizerEstimatedRowCount, double optimizerEstimatedCost, int opType, boolean all, int intermediateOrderByColumnsSavedObject, int intermediateOrderByDirectionSavedObject, int intermediateOrderByNullsLowSavedObject) throws StandardException
      Description copied from interface: ResultSetFactory
      The SetOpResultSet is used to implement an INTERSECT or EXCEPT operation. It selects rows from two ordered input result sets.
      Specified by:
      getSetOpResultSet in interface ResultSetFactory
      Parameters:
      leftSource - The result set that implements the left input
      rightSource - The result set that implements the right input
      activation - the activation for this result set
      resultSetNumber -
      optimizerEstimatedRowCount -
      optimizerEstimatedCost -
      opType - IntersectOrExceptNode.INTERSECT_OP or EXCEPT_OP
      all - true if the operation is an INTERSECT ALL or an EXCEPT ALL, false if the operation is an INTERSECT DISCTINCT or an EXCEPT DISCTINCT
      intermediateOrderByColumnsSavedObject - The saved object index for the array of order by columns for the ordering of the left and right sources. That is, both the left and right sources have an order by clause of the form ORDER BY intermediateOrderByColumns[0],intermediateOrderByColumns[1],...
      intermediateOrderByDirectionSavedObject - The saved object index for the array of source order by directions. That is, the ordering of the i'th order by column in the input is ascending if intermediateOrderByDirection[i] is 1, descending if intermediateOrderByDirection[i] is -1.
      Returns:
      A ResultSet from which the caller can get the INTERSECT or EXCEPT
      Throws:
      StandardException - Thrown on failure

    • getLastIndexKeyResultSet

      public NoPutResultSet getLastIndexKeyResultSet(Activation activation, int resultSetNumber, int resultRowTemplate, long conglomId, String tableName, String userSuppliedOptimizerOverrides, String indexName, int colRefItem, int lockMode, boolean tableLocked, int isolationLevel, double optimizerEstimatedRowCount, double optimizerEstimatedCost) throws StandardException
      A last index key sresult set returns the last row from the index in question. It is used as an ajunct to max().
      Specified by:
      getLastIndexKeyResultSet in interface ResultSetFactory
      Parameters:
      activation - the activation for this result set, which provides the context for the row allocation operation.
      resultSetNumber - The resultSetNumber for the ResultSet
      resultRowTemplate - The saved item for result row template
      conglomId - the conglomerate of the table to be scanned.
      tableName - The full name of the table
      userSuppliedOptimizerOverrides - Overrides specified by the user on the sql
      indexName - The name of the index, if one used to access table.
      colRefItem - An saved item for a bitSet of columns that are referenced in the underlying table. -1 if no item.
      lockMode - The lock granularity to use (see TransactionController in access)
      tableLocked - Whether or not the table is marked as using table locking (in sys.systables)
      isolationLevel - Isolation level (specified or not) to use on scans
      optimizerEstimatedRowCount - Estimated total # of rows by optimizer
      optimizerEstimatedCost - Estimated total cost by optimizer
      Returns:
      the scan operation as a result set.
      Throws:
      StandardException - thrown when unable to create the result set

    • getRaDependentTableScanResultSet

      public NoPutResultSet getRaDependentTableScanResultSet(Activation activation, long conglomId, int scociItem, int resultRowTemplate, int resultSetNumber, GeneratedMethod startKeyGetter, int startSearchOperator, GeneratedMethod stopKeyGetter, int stopSearchOperator, boolean sameStartStopPosition, Qualifier[][] qualifiers, String tableName, String userSuppliedOptimizerOverrides, String indexName, boolean isConstraint, boolean forUpdate, int colRefItem, int indexColItem, int lockMode, boolean tableLocked, int isolationLevel, boolean oneRowScan, double optimizerEstimatedRowCount, double optimizerEstimatedCost, String parentResultSetId, long fkIndexConglomId, int fkColArrayItem, int rltItem) throws StandardException
      a referential action dependent table scan generator.
      Specified by:
      getRaDependentTableScanResultSet in interface ResultSetFactory
      Parameters:
      activation - the activation for this result set, which provides the context for the row allocation operation.
      conglomId - the conglomerate of the table to be scanned.
      scociItem - The saved item for the static conglomerate info.
      resultRowTemplate - The saved item for result row template.
      resultSetNumber - The resultSetNumber for the ResultSet
      startKeyGetter - a reference to a method in the activation that gets the start key indexable row for the scan. Null means there is no start key. ExecIndexRow startKeyGetter() throws StandardException;
      startSearchOperator - The start search operator for opening the scan
      stopKeyGetter - a reference to a method in the activation that gets the stop key indexable row for the scan. Null means there is no stop key. ExecIndexRow stopKeyGetter() throws StandardException;
      stopSearchOperator - The stop search operator for opening the scan
      sameStartStopPosition - Re-use the startKeyGetter for the stopKeyGetter (Exact match search.)
      qualifiers - the array of Qualifiers for the scan. Null or an array length of zero means there are no qualifiers.
      tableName - The full name of the table
      userSuppliedOptimizerOverrides - Overrides specified by the user on the sql
      indexName - The name of the index, if one used to access table.
      isConstraint - If index, if used, is a backing index for a constraint.
      forUpdate - True means open for update
      colRefItem - An saved item for a bitSet of columns that are referenced in the underlying table. -1 if no item.
      lockMode - The lock granularity to use (see TransactionController in access)
      tableLocked - Whether or not the table is marked as using table locking (in sys.systables)
      isolationLevel - Isolation level (specified or not) to use on scans
      oneRowScan - Whether or not this is a 1 row scan.
      optimizerEstimatedRowCount - Estimated total # of rows by optimizer
      optimizerEstimatedCost - Estimated total cost by optimizer
      parentResultSetId - Id to access the materialized temporary result set from the reference stored in the activation.
      fkIndexConglomId - foreign key index conglomerate id.
      fkColArrayItem - saved column array object that matches the foreign key index columns and the resultset from the parent table.
      rltItem - row location template
      Returns:
      the table scan operation as a result set.
      Throws:
      StandardException - thrown on error
      See Also:

    • getRowCountResultSet

      public NoPutResultSet getRowCountResultSet(NoPutResultSet source, Activation activation, int resultSetNumber, GeneratedMethod offsetMethod, GeneratedMethod fetchFirstMethod, boolean hasJDBClimitClause, double optimizerEstimatedRowCount, double optimizerEstimatedCost) throws StandardException
      Description copied from interface: ResultSetFactory
      This result sets implements the filtering needed by and . It is only ever generated if at least one of the two clauses is present.
      Specified by:
      getRowCountResultSet in interface ResultSetFactory
      Parameters:
      source - The source result set being filtered
      activation - The activation for this result set, which provides the context for the row allocation operation
      resultSetNumber - The resultSetNumber for the ResultSet
      offsetMethod - The OFFSET parameter was specified
      fetchFirstMethod - The FETCH FIRST/NEXT parameter was specified
      hasJDBClimitClause - True if the offset/fetchFirst clauses were added by JDBC LIMIT escape syntax
      optimizerEstimatedRowCount - Estimated total # of rows by optimizer
      optimizerEstimatedCost - Estimated total cost by optimizer
      Throws:
      StandardException - Standard error policy
      See Also:

    • getAuthorizer

      private static Authorizer getAuthorizer(Activation activation)