    001/*
    002 * Licensed to the Apache Software Foundation (ASF) under one or more
    003 * contributor license agreements.  See the NOTICE file distributed with
    004 * this work for additional information regarding copyright ownership.
    005 * The ASF licenses this file to You under the Apache License, Version 2.0
    006 * (the "License"); you may not use this file except in compliance with
    007 * the License.  You may obtain a copy of the License at
    008 *
    009 *      http://www.apache.org/licenses/LICENSE-2.0
    010 *
    011 * Unless required by applicable law or agreed to in writing, software
    012 * distributed under the License is distributed on an "AS IS" BASIS,
    013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    014 * See the License for the specific language governing permissions and
    015 * limitations under the License.
    016 */
    017package org.apache.commons.pool2;
    018
    019/**
    020 * This interface allows pooled objects to make information available about when
    021 * and how they were used available to the object pool. The object pool may, but
    022 * is not required, to use this information to make more informed decisions when
    023 * determining the state of a pooled object - for instance whether or not the
    024 * object has been abandoned.
    025 *
    026 * @since 2.0
    027 */
    028public interface TrackedUse {
    029
    030    /**
    031     * Get the last time this object was used in ms.
    032     *
    033     * @return long time in ms
    034     */
    035    long getLastUsed();
    036}