/** * Copyright 2011 Google 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. */ package org.waveprotocol.box.webclient.util; /** * A pool of objects with recycling. * * @author hearnden@google.com (David Hearnden) */ public interface Pool<T> { /** * Retrieves an item, either from the free pool or by creating a new one. * * @return an item ready to use. */ T get(); /** * Recycles an item. The item is returned to the free pool, potentially * asynchronously, after it has been recycled. * * @param item item to recycle */ void recycle(T item); }