openjpa-kernel/src/main/java/org/apache/openjpa/datacache/TypesChangedEvent.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.openjpa.datacache;

import java.util.Collection;
import java.util.EventObject;

/**
 * An event indicating that instances of given persistent types have
 * been modified.
 *
 * @author Abe White
 */
public class TypesChangedEvent
    extends EventObject {

    
    private static final long serialVersionUID = 1L;
    private final Collection _types;

    /**
     * Constructor.
     *
     * @param source the data or query cache
     * @param types the changed types
     */
    public TypesChangedEvent(Object source, Collection types) {
        super(source);
        _types = types;
    }

    /**
     * Return the expired types.
     */
    public Collection getTypes() {
        return _types;
	}
}