/*
* 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.graph;
import com.hp.hpl.jena.graph.Graph ;
import com.hp.hpl.jena.graph.Triple ;
import com.hp.hpl.jena.graph.impl.SimpleBulkUpdateHandler ;
import com.hp.hpl.jena.graph.impl.WrappedGraph ;
public class UnmodifiableGraph extends WrappedGraph
{
public UnmodifiableGraph(Graph base)
{
super(base) ;
bud = new SimpleBulkUpdateHandler(this) ;
}
/** Return base graph that this class protects. Caveat emptor. */
public Graph unwrap() { return super.base ; }
@Override
public void performAdd(Triple triple)
{ throw new UnsupportedOperationException() ; }
@Override
public void performDelete(Triple triple)
{ throw new UnsupportedOperationException() ; }
}