/*
Derby - Class org.apache.derby.impl.sql.execute.rts.RealJoinResultSetStatistics
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.XPLAINResultSetDescriptor;
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;
/**
ResultSetStatistics implemenation for JoinResultSet.
*/
public abstract class RealJoinResultSetStatistics
extends RealNoPutResultSetStatistics
{
/* Leave these fields public for object inspectors */
public int rowsSeenLeft;
public int rowsSeenRight;
public int rowsReturned;
public long restrictionTime;
public String userSuppliedOptimizerOverrides;
// CONSTRUCTORS
/**
*
*
*/
public RealJoinResultSetStatistics(
int numOpens,
int rowsSeen,
int rowsFiltered,
long constructorTime,
long openTime,
long nextTime,
long closeTime,
int resultSetNumber,
int rowsSeenLeft,
int rowsSeenRight,
int rowsReturned,
long restrictionTime,
double optimizerEstimatedRowCount,
double optimizerEstimatedCost,
String userSuppliedOptimizerOverrides
)
{
super(
numOpens,
rowsSeen,
rowsFiltered,
constructorTime,
openTime,
nextTime,
closeTime,
resultSetNumber,
optimizerEstimatedRowCount,
optimizerEstimatedCost
);
this.rowsSeenLeft = rowsSeenLeft;
this.rowsSeenRight = rowsSeenRight;
this.rowsReturned = rowsReturned;
this.restrictionTime = restrictionTime;
this.userSuppliedOptimizerOverrides = userSuppliedOptimizerOverrides;
}
// Class implementation
/**
* Format for display, a name for this node.
*
*/
public String getNodeName(){
return MessageService.getTextMessage(SQLState.RTS_JOIN);
}
public Object getResultSetDescriptor(Object rsID, Object parentID,
Object scanID, Object sortID, Object stmtID, Object timingID)
{
return new XPLAINResultSetDescriptor(
(UUID)rsID,
getRSXplainType(),
getRSXplainDetails(),
new Integer(this.numOpens),
null, // index updates
null, // lock mode
null, // lock granularity
(UUID)parentID,
new Double(this.optimizerEstimatedRowCount),
new Double(this.optimizerEstimatedCost),
null, // affected rows
null, // deferred rows
null, // the input rows
new Integer(this.rowsSeenLeft),
new Integer(this.rowsSeenRight),
new Integer(this.rowsFiltered),
new Integer(this.rowsReturned),
null, // the empty right rows
null, // index key optimization
(UUID)scanID,
(UUID)sortID,
(UUID)stmtID,
(UUID)timingID);
}
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.rowsSeenLeft+this.rowsSeenRight)),
null, // the projection time
null, // the restriction time
null, // the temp_cong_create_time
null // the temo_cong_fetch_time
);
}
}