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

Class RealSortStatistics

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.RealSortStatistics

All Implemented Interfaces:

ResultSetStatistics, XPLAINable

public class RealSortStatistics
extends RealNoPutResultSetStatistics

ResultSetStatistics implemenation for SortResultSet.

Field Summary

Fields

Modifier and Type	Field and Description
ResultSetStatistics	childResultSetStatistics
boolean	eliminateDuplicates
boolean	inSortedOrder
int	rowsInput
int	rowsReturned
FormatableProperties	sortProperties

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

Constructors

Constructor and Description
RealSortStatistics(int numOpens, int rowsSeen, int rowsFiltered, long constructorTime, long openTime, long nextTime, long closeTime, int resultSetNumber, int rowsInput, int rowsReturned, boolean eliminateDuplicates, boolean inSortedOrder, java.util.Properties sortProperties, double optimizerEstimatedRowCount, double optimizerEstimatedCost, ResultSetStatistics childResultSetStatistics)

Method Summary

Modifier and Type	Method and Description
void	accept(XPLAINVisitor visitor) This method gets called to let a visitor visit this XPLAINable object.
java.util.Vector	getChildren() Get the objects to be displayed when this tree object is expanded.
java.lang.String	getNodeName() Format for display, a name for this node.
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	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.Object	getSortPropsDescriptor(java.lang.Object sortPropsID)
java.lang.String	getStatementExecutionPlanText(int depth) Return the statement execution plan as a String.
java.lang.String	toString()

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, getResultSetTimingsDescriptor, getRSXplainDetails, getScanPropsDescriptor, getTotalTime

Methods inherited from class java.lang.Object

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

Field Detail

rowsInput

public int rowsInput

rowsReturned

public int rowsReturned

eliminateDuplicates

public boolean eliminateDuplicates

inSortedOrder

public boolean inSortedOrder

childResultSetStatistics

public ResultSetStatistics childResultSetStatistics

sortProperties

public FormatableProperties sortProperties

Constructor Detail

RealSortStatistics

public RealSortStatistics(int numOpens,
                          int rowsSeen,
                          int rowsFiltered,
                          long constructorTime,
                          long openTime,
                          long nextTime,
                          long closeTime,
                          int resultSetNumber,
                          int rowsInput,
                          int rowsReturned,
                          boolean eliminateDuplicates,
                          boolean inSortedOrder,
                          java.util.Properties sortProperties,
                          double optimizerEstimatedRowCount,
                          double optimizerEstimatedCost,
                          ResultSetStatistics childResultSetStatistics)

Method Detail

getStatementExecutionPlanText

public java.lang.String getStatementExecutionPlanText(int depth)

Return the statement execution plan as a String.

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.

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 java.lang.Object

getChildren

public java.util.Vector getChildren()

Description copied from class: RealBasicNoPutResultSetStatistics

Get the objects to be displayed when this tree object is expanded.

The objects returned can be of any type, including addtional Inspectables.

Overrides:

getChildren in class RealBasicNoPutResultSetStatistics

Returns:

java.util.Vector A vector of objects.

getNodeName

public java.lang.String getNodeName()

Format for display, a name for this node.

Specified by:

getNodeName in class RealBasicNoPutResultSetStatistics

accept

public void accept(XPLAINVisitor visitor)

Description copied from interface: XPLAINable

This method gets called to let a visitor visit this XPLAINable object. The general contract is to implement pre-order, depth-first traversal to produce a predictable traversal behaviour.

getRSXplainType

public java.lang.String getRSXplainType()

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 RealBasicNoPutResultSetStatistics

getSortPropsDescriptor

public java.lang.Object getSortPropsDescriptor(java.lang.Object sortPropsID)

Specified by:

getSortPropsDescriptor in interface XPLAINable

Overrides:

getSortPropsDescriptor in class RealBasicNoPutResultSetStatistics