Class GenericActivationHolder

java.lang.Object
org.apache.derby.impl.sql.GenericActivationHolder
All Implemented Interfaces:
Dependable, Activation, Dependent
public final class GenericActivationHolder extends Object implements Activation
This class holds an Activation, and passes through most of the calls to the activation. The purpose of this class is to allow a PreparedStatement to be recompiled without the caller having to detect this and get a new activation. In addition to the Activation, this class holds a reference to the PreparedStatement that created it, along with a reference to the GeneratedClass that was associated with the PreparedStatement at the time this holder was created. These references are used to validate the Activation, to ensure that an activation is used only with the PreparedStatement that created it, and to detect when recompilation has happened. We detect recompilation by checking whether the GeneratedClass has changed. If it has, we try to let the caller continue to use this ActivationHolder. We create a new instance of the new GeneratedClass (that is, we create a new Activation), and we compare the number and type of parameters. If these are compatible, we copy the parameters from the old to the new Activation. If they are not compatible, we throw an exception telling the user that the Activation is out of date, and they need to get a new one.

  • Field Details

  • Constructor Details

  • Method Details

    • reset

      public void reset() throws StandardException
      Description copied from interface: Activation
      Resets the activation to the "pre-execution" state - that is, the state where it can be used to begin a new execution. Frees local buffers, stops scans, resets counters to zero, sets current date and time to an unitialized state, etc.
      Specified by:
      reset in interface Activation
      Throws:
      StandardException - thrown on failure
      See Also:

    • checkIfThisActivationHasHoldCursor

      public boolean checkIfThisActivationHasHoldCursor(String tableName)
      Temporary tables can be declared with ON COMMIT DELETE ROWS. But if the table has a held curosr open at commit time, data should not be deleted from the table. This method, (gets called at commit time) checks if this activation held cursor and if so, does that cursor reference the passed temp table name.
      Specified by:
      checkIfThisActivationHasHoldCursor in interface Activation
      Returns:
      true if this activation has held cursor and if it references the passed temp table name

    • setCursorName

      public void setCursorName(String cursorName)
      Description copied from interface: Activation
      JDBC requires that all select statements be converted into cursors, and that the cursor name be settable for each execution of a select statement. The Language Module will support this, so that the JDBC driver will not have to parse JSQL text. This method will have no effect when called on non-select statements.

      There will be a JSQL statement to disable the "cursorization" of all select statements. For non-cursorized select statements, this method will have no effect.

      This has no effect if the activation has been closed.

      Specified by:
      setCursorName in interface Activation
      Parameters:
      cursorName - The cursor name to use.
      See Also:

    • getCursorName

      public String getCursorName()
      Description copied from interface: Activation
      Return the cursor name of this activation. This will differ from its ResultSet's cursor name if it has been altered with setCursorName. Thus this always returns the cursor name of the next execution of this activation. The cursor name of the current execution must be obtained from the ResultSet. or this.getResultSet.getCursorName() [with null checking].

      Statements that do not support cursors will return a null.

      Specified by:
      getCursorName in interface Activation
      Returns:
      The cursor name.
      See Also:

    • setResultSetHoldability

      public void setResultSetHoldability(boolean resultSetHoldability)
      Description copied from interface: Activation
      Set current resultset holdability.
      Specified by:
      setResultSetHoldability in interface Activation
      Parameters:
      resultSetHoldability - The new resultset holdability.
      See Also:

    • getResultSetHoldability

      public boolean getResultSetHoldability()
      Description copied from interface: Activation
      Return the holdability of this activation.

      Specified by:
      getResultSetHoldability in interface Activation
      Returns:
      The holdability of this activation.
      See Also:

    • setAutoGeneratedKeysResultsetInfo

      public void setAutoGeneratedKeysResultsetInfo(int[] columnIndexes, String[] columnNames)
      Description copied from interface: Activation
      Set the auto-generated keys resultset mode to true for this activation. The specific columns for auto-generated keys resultset can be requested by passing column positions array The specific columns for auto-generated keys resultset can be requested by passing column names array Both the parameters would be null if user didn't request specific keys. Otherwise, the user could request specific columns by passing column positions or names array but not both.
      Specified by:
      setAutoGeneratedKeysResultsetInfo in interface Activation
      Parameters:
      columnIndexes - Request specific columns in auto-generated keys resultset by passing column positions. null means no specific columns requested by position
      columnNames - Request specific columns in auto-generated keys resultset by passing column names. null means no specific columns requested by position
      See Also:

    • getAutoGeneratedKeysResultsetMode

      public boolean getAutoGeneratedKeysResultsetMode()
      Description copied from interface: Activation
      Returns true if auto-generated keys resultset request was made for this avtivation.

      Specified by:
      getAutoGeneratedKeysResultsetMode in interface Activation
      Returns:
      auto-generated keys resultset mode for this activation.
      See Also:

    • getAutoGeneratedKeysColumnIndexes

      public int[] getAutoGeneratedKeysColumnIndexes()
      Description copied from interface: Activation
      Returns the column positions array of columns requested in auto-generated keys resultset for this avtivation. Returns null if no specific column requested by positions

      Specified by:
      getAutoGeneratedKeysColumnIndexes in interface Activation
      Returns:
      column positions array of columns requested.
      See Also:

    • getAutoGeneratedKeysColumnNames

      public String[] getAutoGeneratedKeysColumnNames()
      Description copied from interface: Activation
      Returns the column names array of columns requested in auto-generated keys resultset for this avtivation. Returns null if no specific column requested by names

      Specified by:
      getAutoGeneratedKeysColumnNames in interface Activation
      Returns:
      column names array of columns requested.
      See Also:

    • getLanguageConnectionContext

      public LanguageConnectionContext getLanguageConnectionContext()
      Description copied from interface: Activation
      Get the language connection context associated with this activation
      Specified by:
      getLanguageConnectionContext in interface Activation
      See Also:

    • getTransactionController

      public TransactionController getTransactionController()
      Description copied from interface: Activation
      Get the Execution TransactionController associated with this activation/lcc.
      Specified by:
      getTransactionController in interface Activation

    • getExecutionFactory

      public ExecutionFactory getExecutionFactory()
      Description copied from interface: Activation
      Get the ExecutionFactory
      Specified by:
      getExecutionFactory in interface Activation
      Returns:
      ExecutionFactory
      See Also:

    • getParameterValueSet

      public ParameterValueSet getParameterValueSet()
      Description copied from interface: Activation
      Gets the ParameterValueSet for this execution of the statement.
      Specified by:
      getParameterValueSet in interface Activation
      Returns:
      The ParameterValueSet for this execution of the statement. Returns NULL if there are no parameters.
      See Also:

    • setParameters

      public void setParameters(ParameterValueSet parameterValues, DataTypeDescriptor[] parameterTypes) throws StandardException
      Description copied from interface: Activation
      Sets the parameter values for this execution of the statement.

      Has no effect if the activation has been closed.

      NOTE: The setParameters() method is currently unimplemented. A statement with parameters will generate its own ParameterValueSet, which can be gotten with the getParameterValueSet() method (above). The idea behind setParameters() is to improve performance when operating across a network by allowing all the parameters to be set in one call, as opposed to one call per parameter.

      Specified by:
      setParameters in interface Activation
      Parameters:
      parameterValues - The values of the parameters.
      Throws:
      StandardException
      See Also:

    • execute

      public ResultSet execute() throws StandardException
      Description copied from interface: Activation
      When the prepared statement is executed, it passes execution on to the activation execution was requested for.
      Specified by:
      execute in interface Activation
      Returns:
      the ResultSet for further manipulation, if any.
      Throws:
      StandardException - Thrown on failure
      See Also:

    • getResultSet

      public ResultSet getResultSet()
      Description copied from interface: Activation
      Returns the current result set for this activation, i.e. the one returned by the last execute() call. If there has been no execute call or the activation has been reset or closed, a null is returned.
      Specified by:
      getResultSet in interface Activation
      Returns:
      the current ResultSet of this activation.
      See Also:

    • setCurrentRow

      public void setCurrentRow(ExecRow currentRow, int resultSetNumber)
      Description copied from interface: Activation
      Generated plans have a current row field for ease in defining the methods and finding them dynamically. The interface is used to set the row before a dynamic method that uses it is invoked.

      When all processing on the currentRow has been completed, callers should call activation.clearCurrentRow(resultSetNumber) to ensure that no unnecessary references are retained to rows. This will allow the rows no longer in use to be collected by the garbage collecter.

      Specified by:
      setCurrentRow in interface Activation
      Parameters:
      currentRow - The row to be operated upon.
      resultSetNumber - The resultSetNumber for the current ResultSet
      See Also:

    • getCurrentRow

      public Row getCurrentRow(int resultSetNumber)
      Description copied from interface: Activation
      Get the current row at the given index.
      Specified by:
      getCurrentRow in interface Activation
      See Also:

    • clearCurrentRow

      public void clearCurrentRow(int resultSetNumber)
      Description copied from interface: Activation
      Generated plans have a current row field for ease in defining the methods and finding them dynamically. The interface is used to set the row before a dynamic method that uses it is invoked.

      When all processing on the currentRow has been completed, callers should call activation.clearCurrentRow(resultSetNumber) to ensure that no unnecessary references are retained to rows. This will allow the rows no longer in use to be collected by the garbage collecter.

      Specified by:
      clearCurrentRow in interface Activation
      Parameters:
      resultSetNumber - The resultSetNumber for the current ResultSet
      See Also:

    • getPreparedStatement

      public ExecPreparedStatement getPreparedStatement()
      Description copied from interface: Activation
      Get the prepared statement that this activation is for.
      Specified by:
      getPreparedStatement in interface Activation
      Returns:
      the prepared statement this activation is for.
      See Also:

    • checkStatementValidity

      public void checkStatementValidity() throws StandardException
      Description copied from interface: Activation
      Check the validity of the current executing statement. Needs to be called after a statement has obtained the relevant table locks on the
      Specified by:
      checkStatementValidity in interface Activation
      Throws:
      StandardException

    • getResultDescription

      public ResultDescription getResultDescription()
      Description copied from interface: Activation
      Get the result description for this activation, if it has one.
      Specified by:
      getResultDescription in interface Activation
      Returns:
      result description for this activation, if it has one; otherwise, null.
      See Also:

    • getDataValueFactory

      public DataValueFactory getDataValueFactory()
      Description copied from interface: Activation
      Get the DataValueFactory
      Specified by:
      getDataValueFactory in interface Activation
      Returns:
      DataValueFactory
      See Also:

    • getRowLocationTemplate

      public RowLocation getRowLocationTemplate(int itemNumber)
      Description copied from interface: Activation
      Get the saved RowLocation.
      Specified by:
      getRowLocationTemplate in interface Activation
      Parameters:
      itemNumber - The saved item number.
      Returns:
      A RowLocation template for the conglomerate
      See Also:

    • getHeapConglomerateController

      public ConglomerateController getHeapConglomerateController()
      Description copied from interface: Activation
      Get the ConglomerateController, if any, that has already been opened for the heap when scaning for an update or delete. (Saves opening the ConglomerateController twice.)
      Specified by:
      getHeapConglomerateController in interface Activation
      Returns:
      The ConglomerateController, if available, to use for the update.
      See Also:

    • setHeapConglomerateController

      public void setHeapConglomerateController(ConglomerateController updateHeapCC)
      Description copied from interface: Activation
      Set the ConglomerateController to be used for an update or delete. (Saves opening the ConglomerateController twice.)
      Specified by:
      setHeapConglomerateController in interface Activation
      Parameters:
      updateHeapCC - The ConglomerateController to reuse for the update or delete.
      See Also:

    • clearHeapConglomerateController

      public void clearHeapConglomerateController()
      Description copied from interface: Activation
      Clear the ConglomerateController to be used for an update or delete. (Saves opening the ConglomerateController twice.)
      Specified by:
      clearHeapConglomerateController in interface Activation
      See Also:

    • getIndexScanController

      public ScanController getIndexScanController()
      Description copied from interface: Activation
      Get the ScanController, if any, that has already been opened for the index when scaning for an update or delete. (Saves opening the ScanController twice.)
      Specified by:
      getIndexScanController in interface Activation
      Returns:
      The ScanController, if available, to use for the update.
      See Also:

    • setIndexScanController

      public void setIndexScanController(ScanController indexSC)
      Description copied from interface: Activation
      Set the ScanController to be used for an update or delete, when scanning an index that will also be updated (Saves opening the ScanController twice.)
      Specified by:
      setIndexScanController in interface Activation
      Parameters:
      indexSC - The ScanController to reuse for the update or delete.
      See Also:

    • getIndexConglomerateNumber

      public long getIndexConglomerateNumber()
      Description copied from interface: Activation
      Get the conglomerate number of the index, if any, that has already been opened for scaning for an update or delete. (Saves opening the ScanController twice.)
      Specified by:
      getIndexConglomerateNumber in interface Activation
      Returns:
      The conglomerate number, if available, to use for the update.
      See Also:

    • setIndexConglomerateNumber

      public void setIndexConglomerateNumber(long indexConglomerateNumber)
      Description copied from interface: Activation
      Set the conglomerate number of the index to be used for an update or delete, when scanning an index that will also be updated (Saves opening the ScanController twice.)
      Specified by:
      setIndexConglomerateNumber in interface Activation
      Parameters:
      indexConglomerateNumber - The conglomerate number of the index to reuse for the update or delete.
      See Also:

    • clearIndexScanInfo

      public void clearIndexScanInfo()
      Description copied from interface: Activation
      Clear the info for the index to be re-used for update/delete. (ScanController and conglomerate number.)
      Specified by:
      clearIndexScanInfo in interface Activation
      See Also:

    • close

      public void close() throws StandardException
      Description copied from interface: Activation
      Closing an activation statement marks it as unusable. Any other requests made on it will fail. An activation should be marked closed when it is expected to not be used any longer, i.e. when the connection for it is closed, or it has suffered some sort of severe error. This will also close its result set and release any resources it holds e.g. for parameters.

      Any class that implements this must be prepared to be executed from garbage collection, ie. there is no matching context stack.

      Specified by:
      close in interface Activation
      Throws:
      StandardException - Thrown on error
      See Also:

    • isClosed

      public boolean isClosed()
      Description copied from interface: Activation
      Find out if the activation is closed or not.
      Specified by:
      isClosed in interface Activation
      Returns:
      true if the Activation has been closed.
      See Also:

    • setSingleExecution

      public void setSingleExecution()
      Set the activation for a single execution.
      Specified by:
      setSingleExecution in interface Activation
      See Also:

    • isSingleExecution

      public boolean isSingleExecution()
      Is the activation set up for a single execution.
      Specified by:
      isSingleExecution in interface Activation
      See Also:

    • getNumSubqueries

      public int getNumSubqueries()
      Get the number of subqueries in the entire query.
      Specified by:
      getNumSubqueries in interface Activation
      Returns:
      int The number of subqueries in the entire query.

    • setForCreateTable

      public void setForCreateTable()
      Description copied from interface: Activation
      Mark the Activation as being for create table. (NOTE: We can do certain optimizations for create table that we can't do for other DDL.)
      Specified by:
      setForCreateTable in interface Activation
      See Also:

    • getForCreateTable

      public boolean getForCreateTable()
      Description copied from interface: Activation
      Get whether or not this activation is for create table. (NOTE: We can do certain optimizations for create table that we can't do for other DDL.)
      Specified by:
      getForCreateTable in interface Activation
      Returns:
      Whether or not this activation is for create table.
      See Also:

    • setDDLTableDescriptor

      public void setDDLTableDescriptor(TableDescriptor td)
      Description copied from interface: Activation
      Save the TableDescriptor for the target of DDL so that it can be passed between the various ConstantActions during execution.
      Specified by:
      setDDLTableDescriptor in interface Activation
      See Also:

    • getDDLTableDescriptor

      public TableDescriptor getDDLTableDescriptor()
      Description copied from interface: Activation
      Get the TableDescriptor for the target of DDL.
      Specified by:
      getDDLTableDescriptor in interface Activation
      Returns:
      The TableDescriptor for the target of DDL.
      See Also:

    • setMaxRows

      public void setMaxRows(long maxRows)
      Description copied from interface: Activation
      Set the maximum # of rows. (# of rows that can be returned by a ResultSet. 0 means no limit.)
      Specified by:
      setMaxRows in interface Activation
      Parameters:
      maxRows - Maximum # of rows. (0 means no limit.)
      See Also:

    • getMaxRows

      public long getMaxRows()
      Description copied from interface: Activation
      Get the maximum # of rows. (# of rows that can be returned by a ResultSet. 0 means no limit.)
      Specified by:
      getMaxRows in interface Activation
      Returns:
      Maximum # of rows. (0 means no limit.)
      See Also:

    • setTargetVTI

      public void setTargetVTI(ResultSet targetVTI)
      Description copied from interface: Activation
      Save the ResultSet for the target of an update/delete to a VTI.
      Specified by:
      setTargetVTI in interface Activation

    • getTargetVTI

      public ResultSet getTargetVTI()
      Description copied from interface: Activation
      Get the ResultSet for the target of an update/delete to a VTI.
      Specified by:
      getTargetVTI in interface Activation
      Returns:
      The ResultSet for the target of an update/delete to a VTI.

    • getSQLSessionContextForChildren

      public SQLSessionContext getSQLSessionContextForChildren()
      Description copied from interface: Activation
      Get the current SQL session context if in a nested connection of a stored routine or in a substatement.
      Specified by:
      getSQLSessionContextForChildren in interface Activation

    • setupSQLSessionContextForChildren

      public SQLSessionContext setupSQLSessionContextForChildren(boolean push)
      Description copied from interface: Activation
      Set up and return the current SQL session context for all immediately nested connections stemming from the call or function invocation of the statement corresponding to this activation (push=true) or for a substatement, which shares the parents statement's session context (push=false).
      Specified by:
      setupSQLSessionContextForChildren in interface Activation
      Parameters:
      push - true if used to push a new connection context

    • setParentActivation

      public void setParentActivation(Activation a)
      Description copied from interface: Activation
      This activation is created in a dynamic call context or a substatement execution context, chain its parent statements activation..
      Specified by:
      setParentActivation in interface Activation

    • getParentActivation

      public Activation getParentActivation()
      Description copied from interface: Activation
      This activation is created in a dynamic call context, or substatement execution context; get its caller's or superstatement's activation.
      Specified by:
      getParentActivation in interface Activation
      Returns:
      The caller's activation

    • getDependableFinder

      public DependableFinder getDependableFinder()
      Description copied from interface: Dependable
      Get an object which can be written to disk and which, when read from disk, will find or reconstruct this in-memory Dependable.
      Specified by:
      getDependableFinder in interface Dependable
      Returns:
      A Finder object that can be written to disk if this is a Persistent Dependable. Null if this is not a persistent dependable.
      See Also:

    • getObjectName

      public String getObjectName()
      Description copied from interface: Dependable
      Get the name of this Dependable OBJECT. This is useful for diagnostic messages.
      Specified by:
      getObjectName in interface Dependable
      Returns:
      Name of Dependable OBJECT.
      See Also:

    • getObjectID

      public UUID getObjectID()
      Description copied from interface: Dependable
      Get the UUID of this Dependable OBJECT.
      Specified by:
      getObjectID in interface Dependable
      Returns:
      UUID of this OBJECT.
      See Also:

    • getClassType

      public String getClassType()
      Description copied from interface: Dependable
      Get the unique class id for the Dependable. Every Dependable belongs to a class of Dependables.
      Specified by:
      getClassType in interface Dependable
      Returns:
      type of this Dependable.
      See Also:

    • isPersistent

      public boolean isPersistent()
      Description copied from interface: Dependable
      Return whether or not this Dependable is persistent. Persistent dependencies are stored in SYS.SYSDEPENDS.
      Specified by:
      isPersistent in interface Dependable
      Returns:
      true if this Dependable is persistent.
      See Also:

    • isValid

      public boolean isValid()
      Description copied from interface: Dependent
      Check that all of the dependent's dependencies are valid.
      Specified by:
      isValid in interface Dependent
      Returns:
      true if the dependent is currently valid
      See Also:

    • makeInvalid

      public void makeInvalid(int action, LanguageConnectionContext lcc) throws StandardException
      Description copied from interface: Dependent
      Mark the dependent as invalid (due to at least one of its dependencies being invalid).
      Specified by:
      makeInvalid in interface Dependent
      Parameters:
      action - The action causing the invalidation
      lcc - The LanguageConnectionContext
      Throws:
      StandardException - thrown if unable to make it invalid
      See Also:

    • prepareToInvalidate

      public void prepareToInvalidate(Provider p, int action, LanguageConnectionContext lcc) throws StandardException
      Description copied from interface: Dependent
      Prepare to mark the dependent as invalid (due to at least one of its dependencies being invalid).
      Specified by:
      prepareToInvalidate in interface Dependent
      Parameters:
      p - the provider
      action - The action causing the invalidation
      lcc - The LanguageConnectionContext
      Throws:
      StandardException - thrown if unable to make it invalid
      See Also:

    • markUnused

      public void markUnused()
      Mark the activation as unused.
      Specified by:
      markUnused in interface Activation

    • isInUse

      public boolean isInUse()
      Is the activation in use?
      Specified by:
      isInUse in interface Activation
      Returns:
      true/false

    • addWarning

      public void addWarning(SQLWarning w)
      Description copied from interface: Activation
      Add a warning to the activation
      Specified by:
      addWarning in interface Activation
      See Also:

    • getWarnings

      public SQLWarning getWarnings()
      Description copied from interface: Activation
      Returns the chained list of warnings. Returns null if there are no warnings.
      Specified by:
      getWarnings in interface Activation
      See Also:

    • clearWarnings

      public void clearWarnings()
      Description copied from interface: Activation
      Clear the activation's warnings.
      Specified by:
      clearWarnings in interface Activation
      See Also:

    • informOfRowCount

      public void informOfRowCount(NoPutResultSet resultSet, long rowCount) throws StandardException
      Description copied from interface: Activation
      Tell this activation that the given ResultSet was found to have the given number of rows. This is used during execution to determine whether a table has grown or shrunk. If a table's size changes significantly, the activation may invalidate its PreparedStatement to force recompilation. Note that the association of row counts with ResultSets is kept in the activation class, not in the activation itself. This means that this method must be synchronized. This method is not required to check the number of rows on each call. Because of synchronization, this check is likely to be expensive, so it may only check every hundred calls or so.
      Specified by:
      informOfRowCount in interface Activation
      Throws:
      StandardException - Thrown on error
      See Also:

    • isCursorActivation

      public boolean isCursorActivation()
      Description copied from interface: Activation
      Is this Activation for a cursor?
      Specified by:
      isCursorActivation in interface Activation
      Returns:
      Whether or not this Activation is for a cursor.
      See Also:

    • pushConstantAction

      public ConstantAction pushConstantAction(ConstantAction newConstantAction)
      Description copied from interface: Activation
      Push a ConstantAction to be returned by getConstantAction(). Returns the newConstantAction.
      Specified by:
      pushConstantAction in interface Activation

    • popConstantAction

      public ConstantAction popConstantAction()
      Description copied from interface: Activation
      Pop the ConstantAction stack, returning the element which was just popped off the stack.
      Specified by:
      popConstantAction in interface Activation

    • getConstantAction

      public ConstantAction getConstantAction()
      Description copied from interface: Activation
      Get the top ConstantAction on the stack without changing the stack.
      Specified by:
      getConstantAction in interface Activation

    • setParentResultSet

      public void setParentResultSet(TemporaryRowHolder rs, String resultSetId)
      Specified by:
      setParentResultSet in interface Activation

    • getParentResultSet

      public Vector<TemporaryRowHolder> getParentResultSet(String resultSetId)
      Description copied from interface: Activation
      get the reference to parent table ResultSets, that will be needed by the referential action dependent table scans.
      Specified by:
      getParentResultSet in interface Activation

    • clearParentResultSets

      public void clearParentResultSets()
      Specified by:
      clearParentResultSets in interface Activation

    • getParentResultSetKeys

      public Enumeration<String> getParentResultSetKeys()
      Specified by:
      getParentResultSetKeys in interface Activation

    • setForUpdateIndexScan

      public void setForUpdateIndexScan(CursorResultSet forUpdateResultSet)
      Description copied from interface: Activation
      beetle 3865: updateable cursor using index. A way of communication between cursor activation and update activation.
      Specified by:
      setForUpdateIndexScan in interface Activation

    • getForUpdateIndexScan

      public CursorResultSet getForUpdateIndexScan()
      Specified by:
      getForUpdateIndexScan in interface Activation

    • getDynamicResults

      public ResultSet[][] getDynamicResults()
      Description copied from interface: Activation
      Return the set of dynamical created result sets, for procedures. Base implementation returns null, a generated class for a procedure overwrites this with a real implementation.
      Specified by:
      getDynamicResults in interface Activation
      Returns:
      null if no dynamic results exists. Otherwise an array of ResultSet arrays, each of length one containing null or a reference to a ResultSet.

    • getMaxDynamicResults

      public int getMaxDynamicResults()
      Description copied from interface: Activation
      Return the maximum number of dynamical created result sets from the procedure definition. Base implementation returns 0, a generated class for a procedure overwrites this with a real implementation.
      Specified by:
      getMaxDynamicResults in interface Activation

    • getCurrentValueAndAdvance

      public NumberDataValue getCurrentValueAndAdvance(String sequenceUUIDstring, int typeFormatID) throws StandardException
      Description copied from interface: Activation
      Called by generated code to get the next number in an ANSI/ISO sequence and advance the sequence. Raises an exception if the sequence was declared NO CYCLE and its range is exhausted.
      Specified by:
      getCurrentValueAndAdvance in interface Activation
      Parameters:
      sequenceUUIDstring - The string value of the sequence's UUID
      typeFormatID - The format id of the data type to be returned. E.g., StoredFormatIds.SQL_INTEGER_ID.
      Returns:
      The next number in the sequence
      Throws:
      StandardException