api.utils/src/main/java/org/apache/clerezza/utils/UnionWatchableGraph.java

/*
 * 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.clerezza.utils;

import org.apache.clerezza.Graph;
import org.apache.clerezza.WatchableGraph;
import org.apache.clerezza.event.FilterTriple;
import org.apache.clerezza.event.GraphListener;

/**
 * @author developer
 */
public class UnionWatchableGraph extends UnionGraph implements WatchableGraph {

    public UnionWatchableGraph(WatchableGraph... baseTripleCollections) {
        super(baseTripleCollections);
    }

    @Override
    public void addGraphListener(GraphListener listener, FilterTriple filter) {
        for (Graph graph : baseTripleCollections) {
            ((WatchableGraph) graph).addGraphListener(listener, filter);
        }
    }

    @Override
    public void addGraphListener(GraphListener listener, FilterTriple filter, long delay) {
        for (Graph graph : baseTripleCollections) {
            ((WatchableGraph) graph).addGraphListener(listener, filter, delay);
        }
    }

    @Override
    public void removeGraphListener(GraphListener listener) {
        for (Graph graph : baseTripleCollections) {
            ((WatchableGraph) graph).removeGraphListener(listener);
        }
    }
}