001/*
002 * Copyright 2002-2012 the original author or authors.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *      https://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017package org.springframework.aop.target;
018
019/**
020 * Config interface for a pooling target source.
021 *
022 * @author Rod Johnson
023 * @author Juergen Hoeller
024 */
025public interface PoolingConfig {
026
027        /**
028         * Return the maximum size of the pool.
029         */
030        int getMaxSize();
031
032        /**
033         * Return the number of active objects in the pool.
034         * @throws UnsupportedOperationException if not supported by the pool
035         */
036        int getActiveCount() throws UnsupportedOperationException;
037
038        /**
039         * Return the number of idle objects in the pool.
040         * @throws UnsupportedOperationException if not supported by the pool
041         */
042        int getIdleCount() throws UnsupportedOperationException;
043
044}