org.apache.derby.impl.sql.execute.rts
Class RealNestedLoopJoinStatistics
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.RealJoinResultSetStatistics
org.apache.derby.impl.sql.execute.rts.RealNestedLoopJoinStatistics
- All Implemented Interfaces:
- XPLAINable, ResultSetStatistics
- Direct Known Subclasses:
- RealHashJoinStatistics, RealNestedLoopLeftOuterJoinStatistics
public class RealNestedLoopJoinStatistics
- extends RealJoinResultSetStatistics
ResultSetStatistics implemenation for NestedLoopJoinResultSet.
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 |
RealNestedLoopJoinStatistics(int numOpens,
int rowsSeen,
int rowsFiltered,
long constructorTime,
long openTime,
long nextTime,
long closeTime,
int resultSetNumber,
int rowsSeenLeft,
int rowsSeenRight,
int rowsReturned,
long restrictionTime,
boolean oneRowRightSide,
double optimizerEstimatedRowCount,
double optimizerEstimatedCost,
java.lang.String userSuppliedOptimizerOverrides,
ResultSetStatistics leftResultSetStatistics,
ResultSetStatistics rightResultSetStatistics)
|
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
oneRowRightSide
public boolean oneRowRightSide
leftResultSetStatistics
public ResultSetStatistics leftResultSetStatistics
rightResultSetStatistics
public ResultSetStatistics rightResultSetStatistics
nodeName
protected java.lang.String nodeName
resultSetName
public java.lang.String resultSetName
RealNestedLoopJoinStatistics
public RealNestedLoopJoinStatistics(int numOpens,
int rowsSeen,
int rowsFiltered,
long constructorTime,
long openTime,
long nextTime,
long closeTime,
int resultSetNumber,
int rowsSeenLeft,
int rowsSeenRight,
int rowsReturned,
long restrictionTime,
boolean oneRowRightSide,
double optimizerEstimatedRowCount,
double optimizerEstimatedCost,
java.lang.String userSuppliedOptimizerOverrides,
ResultSetStatistics leftResultSetStatistics,
ResultSetStatistics rightResultSetStatistics)
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.
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()
- Overrides:
toString
in class java.lang.Object
getChildren
public java.util.Vector 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 class RealBasicNoPutResultSetStatistics
- Returns:
- java.util.Vector A vector of objects.
getNodeName
public java.lang.String getNodeName()
- Format for display, a name for this node.
- Overrides:
getNodeName
in class RealJoinResultSetStatistics
setNames
protected void setNames()
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
Apache Derby V10.6 Internals - Copyright © 2004,2007 The Apache Software Foundation. All Rights Reserved.