/*
* 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 com.hp.hpl.jena.sparql.engine;
import org.openjena.atlas.io.IndentedWriter ;
import org.openjena.atlas.lib.Closeable ;
import com.hp.hpl.jena.sparql.algebra.Op ;
import com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorCloseable ;
import com.hp.hpl.jena.sparql.serializer.SerializationContext ;
import com.hp.hpl.jena.sparql.util.Utils ;
public class PlanOp extends PlanBase
{
private QueryIterator qIter ;
private String label = null ;
public PlanOp(Op op, Closeable closeable, QueryIterator qIter)
{
super(op, closeable) ;
//this.qIter = qIter ;
// Catch the close and close the plan.
this.qIter = new QueryIteratorCloseable(qIter, this) ;
}
public PlanOp(String label, Closeable closeable, Op op, QueryIterator qIter)
{
this(op, closeable, qIter) ;
this.label = label ;
}
@Override
protected QueryIterator iteratorOnce()
{ return qIter ; }
@Override
public void output(IndentedWriter out, SerializationContext sCxt)
{
if ( getOp() == null )
{
out.println(Utils.className(this)) ;
return ;
}
String str = label ;
if ( label == null )
str = "Plan" ;
out.print(Plan.startMarker) ;
out.println(str) ;
out.incIndent() ;
//getOp().output(out, sCxt) ;
qIter.output(out, sCxt) ;
out.print(Plan.finishMarker) ;
out.decIndent() ;
out.ensureStartOfLine() ;
}
}