Class RealScalarAggregateStatistics
- 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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- All Implemented Interfaces:
ResultSetStatistics
,XPLAINable
- Direct Known Subclasses:
RealDistinctScalarAggregateStatistics
public class RealScalarAggregateStatistics extends RealNoPutResultSetStatistics
ResultSetStatistics implemenation for ScalarAggregateResultSet.
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Field Summary
Fields Modifier and Type Field Description ResultSetStatistics
childResultSetStatistics
boolean
indexKeyOptimization
int
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 RealScalarAggregateStatistics(int numOpens, int rowsSeen, int rowsFiltered, long constructorTime, long openTime, long nextTime, long closeTime, int resultSetNumber, boolean indexKeyOptimization, 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.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.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.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, getRSXplainDetails, getScanPropsDescriptor, getSortPropsDescriptor, getTotalTime
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Field Detail
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rowsInput
public int rowsInput
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indexKeyOptimization
public boolean indexKeyOptimization
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childResultSetStatistics
public ResultSetStatistics childResultSetStatistics
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Constructor Detail
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RealScalarAggregateStatistics
public RealScalarAggregateStatistics(int numOpens, int rowsSeen, int rowsFiltered, long constructorTime, long openTime, long nextTime, long closeTime, int resultSetNumber, boolean indexKeyOptimization, 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.- 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.- 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 classjava.lang.Object
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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 classRealBasicNoPutResultSetStatistics
- 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.- Specified by:
getNodeName
in classRealBasicNoPutResultSetStatistics
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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.
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getRSXplainType
public java.lang.String getRSXplainType()
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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 interfaceXPLAINable
- Overrides:
getResultSetDescriptor
in classRealBasicNoPutResultSetStatistics
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