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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;
import java.lang.ref.ReferenceQueue;
public class ReferenceBundle{
private ReferenceManager manager;
private ReferenceType type;
public ReferenceBundle(ReferenceManager manager, ReferenceType type){
this.manager = manager;
this.type = type;
}
public ReferenceType getType() {
return type;
}
public ReferenceManager getManager() {
return manager;
}
private static final ReferenceBundle softReferences, weakReferences, hardReferences, phantomReferences;
static {
ReferenceQueue queue = new ReferenceQueue();
ReferenceManager callBack = ReferenceManager.createCallBackedManager(queue);
ReferenceManager manager = ReferenceManager.createThresholdedIdlingManager(queue, callBack, 5000);
softReferences = new ReferenceBundle(manager, ReferenceType.SOFT);
weakReferences = new ReferenceBundle(manager, ReferenceType.WEAK);
phantomReferences = new ReferenceBundle(manager, ReferenceType.PHANTOM);
hardReferences = new ReferenceBundle(ReferenceManager.createIdlingManager(null), ReferenceType.HARD);
}
public static ReferenceBundle getSoftBundle() {
return softReferences;
}
public static ReferenceBundle getWeakBundle() {
return weakReferences;
}
public static ReferenceBundle getHardBundle() {
return hardReferences;
}
public static ReferenceBundle getPhantomBundle() {
return phantomReferences;
}
}