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

Fields

Modifier and Type	Field	Description
int	emptyRightRowsReturned

Fields inherited from class RealNestedLoopJoinStatistics

leftResultSetStatistics, nodeName, oneRowRightSide, resultSetName, rightResultSetStatistics

Fields inherited from class RealJoinResultSetStatistics

restrictionTime, rowsReturned, rowsSeenLeft, rowsSeenRight, userSuppliedOptimizerOverrides

Fields inherited from class RealNoPutResultSetStatistics

indent, resultSetNumber, sourceDepth, subIndent

Fields inherited from class RealBasicNoPutResultSetStatistics

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

Constructor Summary

Constructors

Constructor

Description

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, String userSuppliedOptimizerOverrides, ResultSetStatistics leftResultSetStatistics, ResultSetStatistics rightResultSetStatistics, int emptyRightRowsReturned)

Method Summary

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

Methods inherited from class RealNestedLoopJoinStatistics

accept, getChildren, getNodeName

Methods inherited from class RealJoinResultSetStatistics

getResultSetTimingsDescriptor

Methods inherited from class RealNoPutResultSetStatistics

initFormatInfo

Methods inherited from class RealBasicNoPutResultSetStatistics

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

Methods inherited from class Object

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

Field Details

emptyRightRowsReturned

public int emptyRightRowsReturned

Constructor Details

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,
 String userSuppliedOptimizerOverrides,
 ResultSetStatistics leftResultSetStatistics,
 ResultSetStatistics rightResultSetStatistics,
 int emptyRightRowsReturned)

Method Details

getStatementExecutionPlanText

public 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 String getScanStatisticsText(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:

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

depth - Indentation level.

Returns:

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

toString

public String toString()

Overrides:

toString in class RealNestedLoopJoinStatistics

setNames

protected void setNames()

Overrides:

setNames in class RealNestedLoopJoinStatistics

getRSXplainType

public String getRSXplainType()

Specified by:

getRSXplainType in interface XPLAINable

Overrides:

getRSXplainType in class RealNestedLoopJoinStatistics

getRSXplainDetails

public String getRSXplainDetails()

Specified by:

getRSXplainDetails in interface XPLAINable

Overrides:

getRSXplainDetails in class RealNestedLoopJoinStatistics

getResultSetDescriptor

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

Specified by:

getResultSetDescriptor in interface XPLAINable

Overrides:

getResultSetDescriptor in class RealJoinResultSetStatistics