/* * 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.apache.jena.atlas.lib; /** Synchronization wrapper for a pool */ public class PoolSync<T> implements Pool<T> { private Pool<T> pool ; public static <T> Pool<T> create(Pool<T> pool) { if ( pool instanceof PoolSync<?>) { PoolSync<T> p = (PoolSync<T>)pool ; return p ; } return new PoolSync<>(pool) ; } public PoolSync(Pool<T> pool) { this.pool = pool ; } @Override public final synchronized void put(T item) { pool.put(item) ; } @Override public final synchronized T get() { return pool.get(); } @Override public final synchronized boolean isEmpty() { return pool.isEmpty() ; } }