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

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.RealVTIStatistics

All Implemented Interfaces:

ResultSetStatistics, XPLAINable

public class RealVTIStatistics
extends RealNoPutResultSetStatistics

ResultSetStatistics implemenation for VTIResultSet.

Field Summary

java.lang.String

javaClassName

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

RealVTIStatistics(int numOpens, int rowsSeen, int rowsFiltered, long constructorTime, long openTime, long nextTime, long closeTime, int resultSetNumber, java.lang.String javaClassName, double optimizerEstimatedRowCount, double optimizerEstimatedCost)

Method Summary

void	accept(XPLAINVisitor visitor) This method gets called to let a visitor visit this XPLAINable object.
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, getChildren, 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

javaClassName

public java.lang.String javaClassName

Constructor Detail

RealVTIStatistics

public RealVTIStatistics(int numOpens,
                         int rowsSeen,
                         int rowsFiltered,
                         long constructorTime,
                         long openTime,
                         long nextTime,
                         long closeTime,
                         int resultSetNumber,
                         java.lang.String javaClassName,
                         double optimizerEstimatedRowCount,
                         double optimizerEstimatedCost)

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 executio 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

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

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