Package org.apache.derby.impl.sql.execute

Class ValidateCheckConstraintResultSet

java.lang.Object

org.apache.derby.impl.sql.execute.BasicNoPutResultSetImpl

org.apache.derby.impl.sql.execute.NoPutResultSetImpl

org.apache.derby.impl.sql.execute.ScanResultSet

org.apache.derby.impl.sql.execute.TableScanResultSet

org.apache.derby.impl.sql.execute.ValidateCheckConstraintResultSet

All Implemented Interfaces:

Cloneable, CursorResultSet, NoPutResultSet, ResultSet, RowLocationRetRowSource, RowSource

final class ValidateCheckConstraintResultSet
extends TableScanResultSet
implements CursorResultSet, Cloneable

Special result set used when checking deferred CHECK constraints. Activated by a special --DERBY_PROPERTY validateCheckConstraint=<baseTableUUIDString> override on a SELECT query, cf DeferredConstraintsMemory#validateCheck. It relies on having a correct row location set prior to invoking getNewtRowCore, cf. the special code path in ProjectRestrictResultSet#getNextRowCore activated by #validatingCheckConstraint.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.derby.impl.sql.execute.BasicNoPutResultSetImpl

BasicNoPutResultSetImpl.FieldComparator

Field Summary

Fields inherited from class org.apache.derby.impl.sql.execute.TableScanResultSet

coarserLock, conglomId, currentRowIsValid, dcoci, firstScan, forUpdate, indexCols, isConstraint, isKeyed, nextDone, oneRowScan, past2FutureTbl, qualifiers, qualify, rowsPerRead, rowsThisScan, runTimeStatisticsOn, sameStartStopPosition, scanController, scanControllerOpened, scanRepositioned, scoci, startKeyGetter, startPosition, startPositionString, startSearchOperator, stopKeyGetter, stopPosition, stopPositionString, stopSearchOperator, userSuppliedOptimizerOverrides

Fields inherited from class org.apache.derby.impl.sql.execute.ScanResultSet

accessedCols, candidate, fetchRowLocations, indexName, isolationLevel, lockMode, resultRowBuilder, tableName

Fields inherited from class org.apache.derby.impl.sql.execute.NoPutResultSetImpl

checkNullCols, clonedExecRow, cncLen, resultSetNumber, targetResultSet

Fields inherited from class org.apache.derby.impl.sql.execute.BasicNoPutResultSetImpl

activation, beginTime, closeTime, compactRow, constructorTime, currentRow, endExecutionTime, finished, isOpen, isTopResultSet, nextTime, numOpens, openTime, optimizerEstimatedCost, optimizerEstimatedRowCount, resultDescription, rowsFiltered, rowsSeen, startExecutionTime, subqueryTrackingArray

Fields inherited from interface org.apache.derby.iapi.sql.execute.NoPutResultSet

ABSOLUTE, FIRST, LAST, NEXT, PREVIOUS, RELATIVE, TEMPORARY_RESULT_SET_NUMBER

Fields inherited from interface org.apache.derby.iapi.sql.ResultSet

CURRENT_RESULTSET_ONLY, ENTIRE_RESULTSET_TREE, ISAFTERLAST, ISBEFOREFIRST, ISFIRST, ISLAST

Constructor Summary

Constructors

Constructor

Description

ValidateCheckConstraintResultSet(long conglomId, StaticCompiledOpenConglomInfo scoci, Activation activation, 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 oneRowScan, double optimizerEstimatedRowCount, double optimizerEstimatedCost)

Method Summary

Modifier and Type	Method	Description
(package private) boolean	loopControl(boolean moreRows)

Methods inherited from class org.apache.derby.impl.sql.execute.TableScanResultSet

canGetInstantaneousLocks, clone, close, getCurrentRow, getNextRowCore, getRowLocation, getScanProperties, getTimeSpent, initStartAndStopKey, isForUpdate, openCore, openScanController, positionScanAtRowLocation, printStartPosition, printStopPosition, reopenCore, reopenScanController, requiresRelocking, setRowCountIfPossible

Methods inherited from class org.apache.derby.impl.sql.execute.ScanResultSet

getScanIsolationLevel, initIsolationLevel, setRowLocationsState, toXML

Methods inherited from class org.apache.derby.impl.sql.execute.NoPutResultSetImpl

clearCurrentRow, clearOrderableCache, closeRowSource, getCursorName, getNextRowFromRowSource, getResultDescription, getValidColumns, markRowAsDeleted, needsRowLocation, needsRowLocationForDeferredCheckConstraints, needsToClone, offendingRowLocation, printQualifiers, resultSetNumber, rowLocation, setCurrentRow, setHasDeferrableChecks, setNeedsRowLocation, setTargetResultSet, skipRow, skipScan, unpackHashValue, updateRow

Methods inherited from class org.apache.derby.impl.sql.execute.BasicNoPutResultSetImpl

addWarning, attachStatementContext, checkCancellationFlag, checkRowPosition, childrenToXML, cleanUp, dumpTimeStats, finish, finishAndRTS, getAbsoluteRow, getActivation, getAutoGeneratedKeysResultset, getBeginExecutionTimestamp, getCompactRow, getCurrentTimeMillis, getElapsedMillis, getEndExecutionTimestamp, getEstimatedRowCount, getExecuteTime, getExecutionFactory, getFirstRow, getLanguageConnectionContext, getLastRow, getNextRow, getPointOfAttachment, getPreviousRow, getRelativeRow, getRowNumber, getSubqueryTrackingArray, getTransactionController, getWarnings, isClosed, isXplainOnlyMode, markAsTopResultSet, modifiedRowCount, open, recordConstructorTime, returnsRows, setAfterLastRow, setBeforeFirstRow, setCompactRow, setCompatRow, toXML

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.derby.iapi.sql.execute.CursorResultSet

getCurrentRow, getRowLocation

Methods inherited from interface org.apache.derby.iapi.sql.ResultSet

addWarning, checkRowPosition, cleanUp, clearCurrentRow, close, finish, getAbsoluteRow, getActivation, getAutoGeneratedKeysResultset, getBeginExecutionTimestamp, getCursorName, getEndExecutionTimestamp, getExecuteTime, getFirstRow, getLastRow, getNextRow, getPreviousRow, getRelativeRow, getResultDescription, getRowNumber, getSubqueryTrackingArray, getTimeSpent, getWarnings, isClosed, modifiedRowCount, open, returnsRows, setAfterLastRow, setBeforeFirstRow, toXML

Constructor Details

ValidateCheckConstraintResultSet

ValidateCheckConstraintResultSet(long conglomId,
 StaticCompiledOpenConglomInfo scoci,
 Activation activation,
 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 oneRowScan,
 double optimizerEstimatedRowCount,
 double optimizerEstimatedCost)
                          throws StandardException

Throws:

StandardException

Method Details

loopControl

boolean loopControl(boolean moreRows)
             throws StandardException

Overrides:

loopControl in class TableScanResultSet

Throws:

StandardException