Class RealDistinctScanStatistics
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.RealHashScanStatistics
org.apache.derby.impl.sql.execute.rts.RealDistinctScanStatistics
- All Implemented Interfaces:
ResultSetStatistics
,XPLAINable
ResultSetStatistics implemenation for DistinctScanResultSet.
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Field Summary
Fields inherited from class org.apache.derby.impl.sql.execute.rts.RealHashScanStatistics
hashKeyColumns, hashtableSize, indexName, isConstraint, isolationLevel, lockString, nextQualifiers, scanProperties, scanQualifiers, startPosition, stopPosition, 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
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Constructor Summary
ConstructorsConstructorDescriptionRealDistinctScanStatistics
(int numOpens, int rowsSeen, int rowsFiltered, long constructorTime, long openTime, long nextTime, long closeTime, int resultSetNumber, String tableName, String indexName, boolean isConstraint, int hashtableSize, int[] hashKeyColumns, String scanQualifiers, String nextQualifiers, Properties scanProperties, String startPosition, String stopPosition, String isolationLevel, String lockString, double optimizerEstimatedRowCount, double optimizerEstimatedCost) -
Method Summary
Modifier and TypeMethodDescriptionvoid
accept
(XPLAINVisitor visitor) This method gets called to let a visitor visit this XPLAINable object.Format for display, a name for this node.If this node is on a database item (like a table or an index), then provide a string that describes the on item.getScanStatisticsText
(String tableName, int depth) Return information on the scan nodes from the statement execution plan as a String.getStatementExecutionPlanText
(int depth) Return the statement execution plan as a String.toString()
Methods inherited from class org.apache.derby.impl.sql.execute.rts.RealHashScanStatistics
getResultSetDescriptor, getRSXplainDetails, getScanPropsDescriptor
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, getResultSetTimingsDescriptor, getSortPropsDescriptor, getTotalTime
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Constructor Details
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RealDistinctScanStatistics
public RealDistinctScanStatistics(int numOpens, int rowsSeen, int rowsFiltered, long constructorTime, long openTime, long nextTime, long closeTime, int resultSetNumber, String tableName, String indexName, boolean isConstraint, int hashtableSize, int[] hashKeyColumns, String scanQualifiers, String nextQualifiers, Properties scanProperties, String startPosition, String stopPosition, String isolationLevel, String lockString, double optimizerEstimatedRowCount, double optimizerEstimatedCost)
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Method Details
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getStatementExecutionPlanText
Return the statement execution plan as a String.- Specified by:
getStatementExecutionPlanText
in interfaceResultSetStatistics
- Overrides:
getStatementExecutionPlanText
in classRealHashScanStatistics
- Parameters:
depth
- Indentation level.- Returns:
- String The statement executio plan as a String.
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getScanStatisticsText
Return information on the scan nodes from the statement execution plan as a String.- Specified by:
getScanStatisticsText
in interfaceResultSetStatistics
- Overrides:
getScanStatisticsText
in classRealHashScanStatistics
- Parameters:
tableName
- if not NULL then print information for this table onlydepth
- Indentation level.- Returns:
- String The information on the scan nodes from the statement execution plan as a String.
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toString
- Overrides:
toString
in classRealHashScanStatistics
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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 classRealHashScanStatistics
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getNodeName
Format for display, a name for this node.- Overrides:
getNodeName
in classRealHashScanStatistics
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accept
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 classRealHashScanStatistics
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getRSXplainType
- Specified by:
getRSXplainType
in interfaceXPLAINable
- Overrides:
getRSXplainType
in classRealHashScanStatistics
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