Class RealDistinctScalarAggregateStatistics
- java.lang.Object
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- org.apache.derby.impl.sql.execute.rts.RealBasicNoPutResultSetStatistics
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- org.apache.derby.impl.sql.execute.rts.RealNoPutResultSetStatistics
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- org.apache.derby.impl.sql.execute.rts.RealScalarAggregateStatistics
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- org.apache.derby.impl.sql.execute.rts.RealDistinctScalarAggregateStatistics
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- All Implemented Interfaces:
ResultSetStatistics
,XPLAINable
public class RealDistinctScalarAggregateStatistics extends RealScalarAggregateStatistics
ResultSetStatistics implemenation for DistinctScalarAggregateResultSet.
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Field Summary
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Fields inherited from class org.apache.derby.impl.sql.execute.rts.RealScalarAggregateStatistics
childResultSetStatistics, indexKeyOptimization, rowsInput
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Fields inherited from class org.apache.derby.impl.sql.execute.rts.RealNoPutResultSetStatistics
indent, resultSetNumber, sourceDepth, subIndent
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Fields inherited from class org.apache.derby.impl.sql.execute.rts.RealBasicNoPutResultSetStatistics
closeTime, constructorTime, inspectDesc, inspectNum, inspectOverall, nextTime, numOpens, openTime, optimizerEstimatedCost, optimizerEstimatedRowCount, rowsFiltered, rowsSeen
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Constructor Summary
Constructors Constructor Description RealDistinctScalarAggregateStatistics(int numOpens, int rowsSeen, int rowsFiltered, long constructorTime, long openTime, long nextTime, long closeTime, int resultSetNumber, int rowsInput, double optimizerEstimatedRowCount, double optimizerEstimatedCost, ResultSetStatistics childResultSetStatistics)
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Method Summary
All Methods Instance Methods Concrete Methods 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.java.lang.String
getNodeName()
Format for display, a name for this node.java.lang.String
getRSXplainDetails()
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()
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Methods inherited from class org.apache.derby.impl.sql.execute.rts.RealScalarAggregateStatistics
getResultSetDescriptor, getRSXplainType
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Methods inherited from class org.apache.derby.impl.sql.execute.rts.RealNoPutResultSetStatistics
initFormatInfo
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Methods inherited from class org.apache.derby.impl.sql.execute.rts.RealBasicNoPutResultSetStatistics
dumpEstimatedCosts, dumpTimeStats, getChildrenTime, getEstimatedRowCount, getNodeOn, getNodeTime, getResultSetTimingsDescriptor, getScanPropsDescriptor, getSortPropsDescriptor, getTotalTime
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Constructor Detail
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RealDistinctScalarAggregateStatistics
public RealDistinctScalarAggregateStatistics(int numOpens, int rowsSeen, int rowsFiltered, long constructorTime, long openTime, long nextTime, long closeTime, int resultSetNumber, int rowsInput, double optimizerEstimatedRowCount, double optimizerEstimatedCost, ResultSetStatistics childResultSetStatistics)
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Method Detail
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getStatementExecutionPlanText
public java.lang.String getStatementExecutionPlanText(int depth)
Return the statement execution plan as a String.- Specified by:
getStatementExecutionPlanText
in interfaceResultSetStatistics
- Overrides:
getStatementExecutionPlanText
in classRealScalarAggregateStatistics
- Parameters:
depth
- Indentation level.- Returns:
- String The statement execution plan as a String.
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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.- Specified by:
getScanStatisticsText
in interfaceResultSetStatistics
- Overrides:
getScanStatisticsText
in classRealScalarAggregateStatistics
- 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.
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toString
public java.lang.String toString()
- Overrides:
toString
in classRealScalarAggregateStatistics
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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 classRealScalarAggregateStatistics
- Returns:
- java.util.Vector A vector of objects.
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getNodeName
public java.lang.String getNodeName()
Format for display, a name for this node.- Overrides:
getNodeName
in classRealScalarAggregateStatistics
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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.- Specified by:
accept
in interfaceXPLAINable
- Overrides:
accept
in classRealScalarAggregateStatistics
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getRSXplainDetails
public java.lang.String getRSXplainDetails()
- Specified by:
getRSXplainDetails
in interfaceXPLAINable
- Overrides:
getRSXplainDetails
in classRealBasicNoPutResultSetStatistics
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