/*
* © Copyright IBM Corp. 2012-2013
*
* 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.
*/
package com.ibm.commons.util;
/**
* Generic object pool.
* @ibm-not-published
*/
public abstract class ObjectPool {
private Object[] data;
private int count = 0;
public ObjectPool(int poolSize) {
this.data = new Object[poolSize];
}
public synchronized Object get() throws Exception {
synchronized(this) {
if( count==0 ) {
Object object = createObject();
return object;
}
return data[--count];
}
}
public synchronized void recycle(Object object) {
if( count<data.length ) {
data[count++] = object;
}
}
protected abstract Object createObject() throws Exception;
}