org.apache.derby.impl.sql.execute.rts
Class RealSortStatistics
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.RealSortStatistics
- All Implemented Interfaces:
- XPLAINable, ResultSetStatistics
public class RealSortStatistics
- extends RealNoPutResultSetStatistics
ResultSetStatistics implemenation for SortResultSet.
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 |
RealSortStatistics(int numOpens,
int rowsSeen,
int rowsFiltered,
long constructorTime,
long openTime,
long nextTime,
long closeTime,
int resultSetNumber,
int rowsInput,
int rowsReturned,
boolean eliminateDuplicates,
boolean inSortedOrder,
java.util.Properties sortProperties,
double optimizerEstimatedRowCount,
double optimizerEstimatedCost,
ResultSetStatistics childResultSetStatistics)
|
Method Summary |
void |
accept(XPLAINVisitor visitor)
This method gets called to let a visitor visit this XPLAINable object. |
java.util.Vector |
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.Object |
getSortPropsDescriptor(java.lang.Object sortPropsID)
|
java.lang.String |
getStatementExecutionPlanText(int depth)
Return the statement execution plan as a String. |
java.lang.String |
toString()
|
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
rowsInput
public int rowsInput
rowsReturned
public int rowsReturned
eliminateDuplicates
public boolean eliminateDuplicates
inSortedOrder
public boolean inSortedOrder
childResultSetStatistics
public ResultSetStatistics childResultSetStatistics
sortProperties
public FormatableProperties sortProperties
RealSortStatistics
public RealSortStatistics(int numOpens,
int rowsSeen,
int rowsFiltered,
long constructorTime,
long openTime,
long nextTime,
long closeTime,
int resultSetNumber,
int rowsInput,
int rowsReturned,
boolean eliminateDuplicates,
boolean inSortedOrder,
java.util.Properties sortProperties,
double optimizerEstimatedRowCount,
double optimizerEstimatedCost,
ResultSetStatistics childResultSetStatistics)
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.
- Specified by:
getNodeName
in class RealBasicNoPutResultSetStatistics
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()
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 interface XPLAINable
- Overrides:
getResultSetDescriptor
in class RealBasicNoPutResultSetStatistics
getSortPropsDescriptor
public java.lang.Object getSortPropsDescriptor(java.lang.Object sortPropsID)
- Specified by:
getSortPropsDescriptor
in interface XPLAINable
- Overrides:
getSortPropsDescriptor
in class RealBasicNoPutResultSetStatistics
Apache Derby V10.6 Internals - Copyright © 2004,2007 The Apache Software Foundation. All Rights Reserved.