/*
Derby - Class org.apache.derby.impl.sql.execute.rts.RealMaterializedResultSetStatistics
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to you under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package org.apache.derby.impl.sql.execute.rts;
import org.apache.derby.catalog.UUID;
import org.apache.derby.impl.sql.catalog.XPLAINResultSetTimingsDescriptor;
import org.apache.derby.impl.sql.execute.xplain.XPLAINUtil;
import org.apache.derby.iapi.services.io.StoredFormatIds;
import org.apache.derby.iapi.services.i18n.MessageService;
import org.apache.derby.iapi.reference.SQLState;
import org.apache.derby.iapi.services.io.FormatableHashtable;
import java.io.ObjectOutput;
import java.io.ObjectInput;
import java.io.IOException;
import org.apache.derby.iapi.sql.execute.xplain.XPLAINVisitor;
/**
ResultSetStatistics implemenation for MaterializedResultSet.
*/
public class RealMaterializedResultSetStatistics
extends RealNoPutResultSetStatistics
{
/* Leave these fields public for object inspectors */
public ResultSetStatistics childResultSetStatistics;
public long createTCTime;
public long fetchTCTime;
// CONSTRUCTORS
/**
*
*
*/
public RealMaterializedResultSetStatistics(
int numOpens,
int rowsSeen,
int rowsFiltered,
long constructorTime,
long openTime,
long nextTime,
long closeTime,
long createTCTime,
long fetchTCTime,
int resultSetNumber,
double optimizerEstimatedRowCount,
double optimizerEstimatedCost,
ResultSetStatistics childResultSetStatistics
)
{
super(
numOpens,
rowsSeen,
rowsFiltered,
constructorTime,
openTime,
nextTime,
closeTime,
resultSetNumber,
optimizerEstimatedRowCount,
optimizerEstimatedCost
);
this.createTCTime = createTCTime;
this.fetchTCTime = fetchTCTime;
this.childResultSetStatistics = childResultSetStatistics;
}
// ResultSetStatistics methods
/**
* Return the statement execution plan as a String.
*
* @param depth Indentation level.
*
* @return String The statement execution plan as a String.
*/
public String getStatementExecutionPlanText(int depth)
{
initFormatInfo(depth);
return
indent + MessageService.getTextMessage(
SQLState.RTS_MATERIALIZED_RS) +
":\n" +
indent + MessageService.getTextMessage(SQLState.RTS_NUM_OPENS) +
" = " + numOpens + "\n" +
indent + MessageService.getTextMessage(SQLState.RTS_ROWS_SEEN) +
" = " + rowsSeen + "\n" +
dumpTimeStats(indent, subIndent) + "\n" +
dumpEstimatedCosts(subIndent) + "\n" +
subIndent + MessageService.getTextMessage(
SQLState.RTS_TEMP_CONGLOM_CREATE_TIME) +
" = " + createTCTime + "\n" +
subIndent + MessageService.getTextMessage(
SQLState.RTS_TEMP_CONGLOM_FETCH_TIME) +
" = " + fetchTCTime + "\n" +
indent + MessageService.getTextMessage(SQLState.RTS_SOURCE_RS) +
":\n" +
childResultSetStatistics.getStatementExecutionPlanText(sourceDepth) + "\n";
}
/**
* Return information on the scan nodes from the statement execution
* plan as a String.
*
* @param depth Indentation level.
* @param tableName if not NULL then print information for this table only
*
* @return String The information on the scan nodes from the
* statement execution plan as a String.
*/
public String getScanStatisticsText(String tableName, int depth)
{
return childResultSetStatistics.getScanStatisticsText(tableName, depth);
}
// Class implementation
public String toString()
{
return getStatementExecutionPlanText(0);
}
public java.util.Vector getChildren(){
java.util.Vector children = new java.util.Vector();
children.addElement(childResultSetStatistics);
return children;
}
/**
* Format for display, a name for this node.
*
*/
public String getNodeName(){
return MessageService.getTextMessage(SQLState.RTS_MATERIALIZED_RS);
}
// -----------------------------------------------------
// XPLAINable Implementation
// -----------------------------------------------------
public void accept(XPLAINVisitor visitor) {
int noChildren = 0;
if(this.childResultSetStatistics!=null) noChildren++;
//inform the visitor
visitor.setNumberOfChildren(noChildren);
// pre-order, depth-first traversal
// me first
visitor.visit(this);
// then my child
if(childResultSetStatistics!=null){
childResultSetStatistics.accept(visitor);
}
}
public String getRSXplainType() { return XPLAINUtil.OP_MATERIALIZE; }
public String getRSXplainDetails() { return "("+this.resultSetNumber +")"; }
public Object getResultSetTimingsDescriptor(Object timingID)
{
return new XPLAINResultSetTimingsDescriptor(
(UUID)timingID,
new Long(this.constructorTime),
new Long(this.openTime),
new Long(this.nextTime),
new Long(this.closeTime),
new Long(this.getNodeTime()),
XPLAINUtil.getAVGNextTime( (long)this.nextTime, this.rowsSeen),
null, // the projection time
null, // the restriction time
new Long(this.createTCTime),
new Long(this.fetchTCTime)
);
}
}