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
public class RealDistinctScanStatistics extends RealHashScanStatistics
ResultSetStatistics implemenation for DistinctScanResultSet.
-
-
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
-
-
Constructor Summary
Constructors Constructor Description RealDistinctScanStatistics(int numOpens, int rowsSeen, int rowsFiltered, long constructorTime, long openTime, long nextTime, long closeTime, int resultSetNumber, java.lang.String tableName, java.lang.String indexName, boolean isConstraint, int hashtableSize, int[] hashKeyColumns, java.lang.String scanQualifiers, java.lang.String nextQualifiers, java.util.Properties scanProperties, java.lang.String startPosition, java.lang.String stopPosition, java.lang.String isolationLevel, java.lang.String lockString, double optimizerEstimatedRowCount, double optimizerEstimatedCost)
-
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.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
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.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
-
-
-
-
Constructor Detail
-
RealDistinctScanStatistics
public RealDistinctScanStatistics(int numOpens, int rowsSeen, int rowsFiltered, long constructorTime, long openTime, long nextTime, long closeTime, int resultSetNumber, java.lang.String tableName, java.lang.String indexName, boolean isConstraint, int hashtableSize, int[] hashKeyColumns, java.lang.String scanQualifiers, java.lang.String nextQualifiers, java.util.Properties scanProperties, java.lang.String startPosition, java.lang.String stopPosition, java.lang.String isolationLevel, java.lang.String lockString, double optimizerEstimatedRowCount, double optimizerEstimatedCost)
-
-
Method Detail
-
getStatementExecutionPlanText
public java.lang.String getStatementExecutionPlanText(int depth)
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.
-
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 classRealHashScanStatistics
- 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 classRealHashScanStatistics
-
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 classRealHashScanStatistics
-
getNodeName
public java.lang.String getNodeName()
Format for display, a name for this node.- Overrides:
getNodeName
in classRealHashScanStatistics
-
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 classRealHashScanStatistics
-
getRSXplainType
public java.lang.String getRSXplainType()
- Specified by:
getRSXplainType
in interfaceXPLAINable
- Overrides:
getRSXplainType
in classRealHashScanStatistics
-
-