org.apache.derby.impl.sql.execute
Class HashLeftOuterJoinResultSet

java.lang.Object
  org.apache.derby.impl.sql.execute.BasicNoPutResultSetImpl
      org.apache.derby.impl.sql.execute.NoPutResultSetImpl
          org.apache.derby.impl.sql.execute.JoinResultSet
              org.apache.derby.impl.sql.execute.NestedLoopJoinResultSet
                  org.apache.derby.impl.sql.execute.NestedLoopLeftOuterJoinResultSet
                      org.apache.derby.impl.sql.execute.HashLeftOuterJoinResultSet

All Implemented Interfaces:

CursorResultSet, NoPutResultSet, ResultSet, RowLocationRetRowSource, RowSource

 class HashLeftOuterJoinResultSet
extends NestedLoopLeftOuterJoinResultSet

Left outer join using hash join of 2 arbitrary result sets. Simple subclass of nested loop left outer join, differentiated to ease RunTimeStatistics output generation.

Field Summary

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

emptyRightRowsReturned, emptyRowFun

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

isRightOpen, leftNumCols, leftResultSet, leftRow, mergedRow, notExistsRightSide, oneRowRightSide, restriction, restrictionTime, rightNumCols, rightResultSet, rightRow, rowsReturned, rowsSeenLeft, rowsSeenRight, userSuppliedOptimizerOverrides

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.ResultSet

CURRENT_RESULTSET_ONLY, ENTIRE_RESULTSET_TREE, ISAFTERLAST, ISBEFOREFIRST, ISFIRST, ISLAST

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

ABSOLUTE, FIRST, LAST, NEXT, PREVIOUS, RELATIVE

Constructor Summary

HashLeftOuterJoinResultSet(NoPutResultSet leftResultSet, int leftNumCols, NoPutResultSet rightResultSet, int rightNumCols, Activation activation, GeneratedMethod restriction, int resultSetNumber, GeneratedMethod emptyRowFun, boolean wasRightOuterJoin, boolean oneRowRightSide, boolean notExistsRightSide, double optimizerEstimatedRowCount, double optimizerEstimatedCost, java.lang.String userSuppliedOptimizerOverrides)

Method Summary

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

clearScanState, getMergedRow, getNextRowCore

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

close, getTimeSpent

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

closeRight, finish, getCurrentRow, getRowLocation, openCore, openRight, reopenCore

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

clearCurrentRow, clearOrderableCache, closeRowSource, getCursorName, getNextRowFromRowSource, getResultDescription, getValidColumns, isForUpdate, markRowAsDeleted, needsRowLocation, needsToClone, positionScanAtRowLocation, printQualifiers, resultSetNumber, rowLocation, setCurrentRow, setNeedsRowLocation, setTargetResultSet, skipRow, skipScan, updateRow

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

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

Methods inherited from class java.lang.Object

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

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

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

Constructor Detail

HashLeftOuterJoinResultSet

HashLeftOuterJoinResultSet(NoPutResultSet leftResultSet,
                           int leftNumCols,
                           NoPutResultSet rightResultSet,
                           int rightNumCols,
                           Activation activation,
                           GeneratedMethod restriction,
                           int resultSetNumber,
                           GeneratedMethod emptyRowFun,
                           boolean wasRightOuterJoin,
                           boolean oneRowRightSide,
                           boolean notExistsRightSide,
                           double optimizerEstimatedRowCount,
                           double optimizerEstimatedCost,
                           java.lang.String userSuppliedOptimizerOverrides)