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Groovy: A powerful, dynamic language for the JVM
/*
* 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.codehaus.groovy.util;
/**
*
*
* @author Alex Tkachman
* @author Jochen Theodorou
*/
public class ManagedReference implements Finalizable {
private static final ReferenceManager NULL_MANAGER = new ReferenceManager(null){};
private final Reference> ref;
private final ReferenceManager manager;
public ManagedReference(ReferenceType type, ReferenceManager rmanager, T value) {
if (rmanager==null) rmanager = NULL_MANAGER;
this.manager = rmanager;
this.ref = type.createReference(value, this, rmanager.getReferenceQueue());
rmanager.afterReferenceCreation(ref);
}
public ManagedReference(ReferenceBundle bundle, T value) {
this(bundle.getType(),bundle.getManager(),value);
}
public final T get() {
return ref.get();
}
public final void clear() {
ref.clear();
manager.removeStallEntries();
}
public void finalizeReference(){
clear();
}
}