org.apache.derby.impl.sql.execute.rts
Class RealNestedLoopLeftOuterJoinStatistics

java.lang.Object
  org.apache.derby.impl.sql.execute.rts.RealBasicNoPutResultSetStatistics
      org.apache.derby.impl.sql.execute.rts.RealNoPutResultSetStatistics
          org.apache.derby.impl.sql.execute.rts.RealJoinResultSetStatistics
              org.apache.derby.impl.sql.execute.rts.RealNestedLoopJoinStatistics
                  org.apache.derby.impl.sql.execute.rts.RealNestedLoopLeftOuterJoinStatistics

All Implemented Interfaces:

ResultSetStatistics, XPLAINable

Direct Known Subclasses:

RealHashLeftOuterJoinStatistics

public class RealNestedLoopLeftOuterJoinStatistics
extends RealNestedLoopJoinStatistics

ResultSetStatistics implemenation for NestedLoopLeftOuterJoinResultSet.

Field Summary

int	emptyRightRowsReturned

Fields inherited from class org.apache.derby.impl.sql.execute.rts.RealNestedLoopJoinStatistics

leftResultSetStatistics, nodeName, oneRowRightSide, resultSetName, rightResultSetStatistics

Fields inherited from class org.apache.derby.impl.sql.execute.rts.RealJoinResultSetStatistics

restrictionTime, rowsReturned, rowsSeenLeft, rowsSeenRight, userSuppliedOptimizerOverrides

Fields inherited from class org.apache.derby.impl.sql.execute.rts.RealNoPutResultSetStatistics

indent, resultSetNumber, sourceDepth, subIndent

Fields inherited from class org.apache.derby.impl.sql.execute.rts.RealBasicNoPutResultSetStatistics

closeTime, constructorTime, inspectDesc, inspectNum, inspectOverall, nextTime, numOpens, openTime, optimizerEstimatedCost, optimizerEstimatedRowCount, rowsFiltered, rowsSeen

Constructor Summary

RealNestedLoopLeftOuterJoinStatistics(int numOpens, int rowsSeen, int rowsFiltered, long constructorTime, long openTime, long nextTime, long closeTime, int resultSetNumber, int rowsSeenLeft, int rowsSeenRight, int rowsReturned, long restrictionTime, double optimizerEstimatedRowCount, double optimizerEstimatedCost, java.lang.String userSuppliedOptimizerOverrides, ResultSetStatistics leftResultSetStatistics, ResultSetStatistics rightResultSetStatistics, int emptyRightRowsReturned)

Method Summary

java.lang.Object	getResultSetDescriptor(java.lang.Object rsID, java.lang.Object parentID, java.lang.Object scanID, java.lang.Object sortID, java.lang.Object stmtID, java.lang.Object timingID)
java.lang.String	getRSXplainDetails()
java.lang.String	getRSXplainType()
java.lang.String	getScanStatisticsText(java.lang.String tableName, int depth) Return information on the scan nodes from the statement execution plan as a String.
java.lang.String	getStatementExecutionPlanText(int depth) Return the statement execution plan as a String.
protected void	setNames()
java.lang.String	toString()

Methods inherited from class org.apache.derby.impl.sql.execute.rts.RealNestedLoopJoinStatistics

accept, getChildren, getNodeName

Methods inherited from class org.apache.derby.impl.sql.execute.rts.RealJoinResultSetStatistics

getResultSetTimingsDescriptor

Methods inherited from class org.apache.derby.impl.sql.execute.rts.RealNoPutResultSetStatistics

initFormatInfo

Methods inherited from class org.apache.derby.impl.sql.execute.rts.RealBasicNoPutResultSetStatistics

dumpEstimatedCosts, dumpTimeStats, getChildrenTime, getEstimatedRowCount, getNodeOn, getNodeTime, getScanPropsDescriptor, getSortPropsDescriptor, getTotalTime

Methods inherited from class java.lang.Object

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

Field Detail

emptyRightRowsReturned

public int emptyRightRowsReturned

Constructor Detail

RealNestedLoopLeftOuterJoinStatistics

public RealNestedLoopLeftOuterJoinStatistics(int numOpens,
                                             int rowsSeen,
                                             int rowsFiltered,
                                             long constructorTime,
                                             long openTime,
                                             long nextTime,
                                             long closeTime,
                                             int resultSetNumber,
                                             int rowsSeenLeft,
                                             int rowsSeenRight,
                                             int rowsReturned,
                                             long restrictionTime,
                                             double optimizerEstimatedRowCount,
                                             double optimizerEstimatedCost,
                                             java.lang.String userSuppliedOptimizerOverrides,
                                             ResultSetStatistics leftResultSetStatistics,
                                             ResultSetStatistics rightResultSetStatistics,
                                             int emptyRightRowsReturned)

Method Detail

getStatementExecutionPlanText

public java.lang.String getStatementExecutionPlanText(int depth)

Return the statement execution plan as a String.

Specified by:

getStatementExecutionPlanText in interface ResultSetStatistics

Overrides:

getStatementExecutionPlanText in class RealNestedLoopJoinStatistics

Parameters:

depth - Indentation level.

Returns:

String The statement execution plan as a String.

getScanStatisticsText

public java.lang.String getScanStatisticsText(java.lang.String tableName,
                                              int depth)

Return information on the scan nodes from the statement execution plan as a String.

Specified by:

getScanStatisticsText in interface ResultSetStatistics

Overrides:

getScanStatisticsText in class RealNestedLoopJoinStatistics

Parameters:

depth - Indentation level.

tableName - if not NULL then print information for this table only

Returns:

String The information on the scan nodes from the statement execution plan as a String.

toString

public java.lang.String toString()

Overrides:

toString in class RealNestedLoopJoinStatistics

setNames

protected void setNames()

Overrides:

setNames in class RealNestedLoopJoinStatistics

getRSXplainType

public java.lang.String getRSXplainType()

Specified by:

getRSXplainType in interface XPLAINable

Overrides:

getRSXplainType in class RealNestedLoopJoinStatistics

getRSXplainDetails

public java.lang.String getRSXplainDetails()

Specified by:

getRSXplainDetails in interface XPLAINable

Overrides:

getRSXplainDetails in class RealNestedLoopJoinStatistics

getResultSetDescriptor

public java.lang.Object getResultSetDescriptor(java.lang.Object rsID,
                                               java.lang.Object parentID,
                                               java.lang.Object scanID,
                                               java.lang.Object sortID,
                                               java.lang.Object stmtID,
                                               java.lang.Object timingID)

Specified by:

getResultSetDescriptor in interface XPLAINable

Overrides:

getResultSetDescriptor in class RealJoinResultSetStatistics