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

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.RealSetOpResultSetStatistics

All Implemented Interfaces:

ResultSetStatistics, XPLAINable

public class RealSetOpResultSetStatistics
extends RealNoPutResultSetStatistics

ResultSetStatistics implementation for SetOpResultSet.

Field Summary

ResultSetStatistics	leftResultSetStatistics
int	opType
ResultSetStatistics	rightResultSetStatistics
int	rowsReturned
int	rowsSeenLeft
int	rowsSeenRight

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

RealSetOpResultSetStatistics(int opType, int numOpens, int rowsSeen, int rowsFiltered, long constructorTime, long openTime, long nextTime, long closeTime, int resultSetNumber, int rowsSeenLeft, int rowsSeenRight, int rowsReturned, double optimizerEstimatedRowCount, double optimizerEstimatedCost, ResultSetStatistics leftResultSetStatistics, ResultSetStatistics rightResultSetStatistics)
Constructs a new RealSetOpResultSetStatistics object to represent the runtime statistics for SetOpResultSet.

Method Summary

void	accept(XPLAINVisitor visitor) This method gets called to let a visitor visit this XPLAINable object.
java.util.Vector	getChildren() Retrieves the children runtime statistics of this RealSetOpResultSetStatistics object
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	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() Return the runtime statistics of this object in textual representation

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, getScanPropsDescriptor, getSortPropsDescriptor, getTotalTime

Methods inherited from class java.lang.Object

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

Field Detail

opType

public int opType

rowsSeenLeft

public int rowsSeenLeft

rowsSeenRight

public int rowsSeenRight

rowsReturned

public int rowsReturned

leftResultSetStatistics

public ResultSetStatistics leftResultSetStatistics

rightResultSetStatistics

public ResultSetStatistics rightResultSetStatistics

Constructor Detail

RealSetOpResultSetStatistics

public RealSetOpResultSetStatistics(int opType,
                                    int numOpens,
                                    int rowsSeen,
                                    int rowsFiltered,
                                    long constructorTime,
                                    long openTime,
                                    long nextTime,
                                    long closeTime,
                                    int resultSetNumber,
                                    int rowsSeenLeft,
                                    int rowsSeenRight,
                                    int rowsReturned,
                                    double optimizerEstimatedRowCount,
                                    double optimizerEstimatedCost,
                                    ResultSetStatistics leftResultSetStatistics,
                                    ResultSetStatistics rightResultSetStatistics)

Constructs a new RealSetOpResultSetStatistics object to represent the runtime statistics for SetOpResultSet.

Parameters:

opType - set operation type

numOpens - number of open

rowsSeen - rows seen

rowsFiltered - rows filtered

constructorTime - the time for construction

openTime - the time for open operation

nextTime - the time for next operation

closeTime - the time for close operation

resultSetNumber - the result set number

rowsSeenLeft - rows seen by left source input

rowsSeenRight - rows seen by right source input

rowsReturned - rows returned

optimizerEstimatedRowCount - optimizer estimated row count

optimizerEstimatedCost - optimizer estimated cost

leftResultSetStatistics - left source runtime statistics

rightResultSetStatistics - right source runtime statistics

See Also:

SetOpResultSet

Method Detail

getStatementExecutionPlanText

public java.lang.String getStatementExecutionPlanText(int depth)

Return the statement execution plan as a String.

Parameters:

depth - Indentation level.

Returns:

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()

Return the runtime statistics of this object in textual representation

Overrides:

toString in class java.lang.Object

Returns:

the runtime statistics of this object in textual representation as a String.

getChildren

public java.util.Vector getChildren()

Retrieves the children runtime statistics of this RealSetOpResultSetStatistics object

Overrides:

getChildren in class RealBasicNoPutResultSetStatistics

Returns:

the children runtime statistics of this RealSetOpResultSetStatistics object stored in a Vector.

getNodeName

public java.lang.String getNodeName()

Format for display, a name for this node.

Specified by:

getNodeName in class RealBasicNoPutResultSetStatistics

Returns:

the name of the node as a String.

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

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