org.apache.derby.impl.sql.execute.rts
Class RealVTIStatistics
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.RealVTIStatistics
- All Implemented Interfaces:
- XPLAINable, ResultSetStatistics
public class RealVTIStatistics
- extends RealNoPutResultSetStatistics
ResultSetStatistics implemenation for VTIResultSet.
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 |
RealVTIStatistics(int numOpens,
int rowsSeen,
int rowsFiltered,
long constructorTime,
long openTime,
long nextTime,
long closeTime,
int resultSetNumber,
java.lang.String javaClassName,
double optimizerEstimatedRowCount,
double optimizerEstimatedCost)
|
Method Summary |
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 |
getRSXplainDetails()
|
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.RealBasicNoPutResultSetStatistics |
dumpEstimatedCosts, dumpTimeStats, getChildren, getChildrenTime, getEstimatedRowCount, getNodeTime, getResultSetDescriptor, getResultSetTimingsDescriptor, getScanPropsDescriptor, getSortPropsDescriptor, getTotalTime |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
javaClassName
public java.lang.String javaClassName
RealVTIStatistics
public RealVTIStatistics(int numOpens,
int rowsSeen,
int rowsFiltered,
long constructorTime,
long openTime,
long nextTime,
long closeTime,
int resultSetNumber,
java.lang.String javaClassName,
double optimizerEstimatedRowCount,
double optimizerEstimatedCost)
getStatementExecutionPlanText
public java.lang.String getStatementExecutionPlanText(int depth)
- Return the statement execution plan as a String.
- 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.
- 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
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 class RealBasicNoPutResultSetStatistics
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()
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.