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SimplePool.java
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62 lines (50 loc) · 1.46 KB
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/*
* Copyright (c) 2008-2014 MongoDB, Inc.
*
* Licensed 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.
*/
// SimplePool.java
package org.bson.util;
import java.util.Queue;
import java.util.concurrent.ConcurrentLinkedQueue;
/**
* @deprecated This class is NOT a part of public API and will be dropped in 3.x versions.
*/
@Deprecated
public abstract class SimplePool<T> {
public SimplePool( int max ){
_max = max;
}
public SimplePool(){
_max = 1000;
}
protected abstract T createNew();
protected boolean ok( T t ){
return true;
}
public T get(){
T t = _stored.poll();
if ( t != null )
return t;
return createNew();
}
public void done( T t ){
if ( ! ok( t ) )
return;
if ( _stored.size() > _max )
return;
_stored.add( t );
}
final int _max;
private Queue<T> _stored = new ConcurrentLinkedQueue<T>();
}