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

Class RealIndexRowToBaseRowStatistics

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.RealIndexRowToBaseRowStatistics

All Implemented Interfaces:

ResultSetStatistics, XPLAINable

public class RealIndexRowToBaseRowStatistics
extends RealNoPutResultSetStatistics

ResultSetStatistics implemenation for IndexRowToBaseRowResultSet.

Field Summary

Fields

Modifier and Type	Field	Description
ResultSetStatistics	childResultSetStatistics
java.lang.String	colsAccessedFromHeap
java.lang.String	tableName

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	Description
RealIndexRowToBaseRowStatistics(int numOpens, int rowsSeen, int rowsFiltered, long constructorTime, long openTime, long nextTime, long closeTime, int resultSetNumber, java.lang.String tableName, FormatableBitSet colsAccessedFromHeap, double optimizerEstimatedRowCount, double optimizerEstimatedCost, ResultSetStatistics childResultSetStatistics)

Method Summary

Modifier and Type	Method	Description
void	accept(XPLAINVisitor visitor)	This method gets called to let a visitor visit this XPLAINable object.
java.util.Vector<ResultSetStatistics>	getChildren()	Get the objects to be displayed when this tree object is expanded.
(package private) ResultSetStatistics	getChildResultSetStatistics()	Return the ResultSetStatistics for the child of this node.
java.lang.String	getNodeName()	Format for display, a name for this node.
java.lang.String	getNodeOn()	If this node is on a database item (like a table or an index), then provide a string that describes the on item.
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.
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, getNodeTime, getResultSetDescriptor, getResultSetTimingsDescriptor, getScanPropsDescriptor, getSortPropsDescriptor, getTotalTime

Methods inherited from class java.lang.Object

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

Field Detail

tableName

public java.lang.String tableName

childResultSetStatistics

public ResultSetStatistics childResultSetStatistics

colsAccessedFromHeap

public java.lang.String colsAccessedFromHeap

Constructor Detail

RealIndexRowToBaseRowStatistics

public RealIndexRowToBaseRowStatistics(int numOpens,
                                       int rowsSeen,
                                       int rowsFiltered,
                                       long constructorTime,
                                       long openTime,
                                       long nextTime,
                                       long closeTime,
                                       int resultSetNumber,
                                       java.lang.String tableName,
                                       FormatableBitSet colsAccessedFromHeap,
                                       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<ResultSetStatistics> 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.

getNodeOn

public java.lang.String getNodeOn()

If this node is on a database item (like a table or an index), then provide a string that describes the on item.

Overrides:

getNodeOn in class RealBasicNoPutResultSetStatistics

getNodeName

public java.lang.String getNodeName()

Format for display, a name for this node.

Specified by:

getNodeName in class RealBasicNoPutResultSetStatistics

getChildResultSetStatistics

ResultSetStatistics getChildResultSetStatistics()

Return the ResultSetStatistics for the child of this node.

Returns:

The ResultSetStatistics for the child of this node.

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()

getRSXplainDetails

public java.lang.String getRSXplainDetails()

Specified by:

getRSXplainDetails in interface XPLAINable

Overrides:

getRSXplainDetails in class RealBasicNoPutResultSetStatistics