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.scheduling;
018
019import java.util.Date;
020
021/**
022 * Context object encapsulating last execution times and last completion time
023 * of a given task.
024 *
025 * @author Juergen Hoeller
026 * @since 3.0
027 */
028public interface TriggerContext {
029
030        /**
031         * Return the last <i>scheduled</i> execution time of the task,
032         * or {@code null} if not scheduled before.
033         */
034        Date lastScheduledExecutionTime();
035
036        /**
037         * Return the last <i>actual</i> execution time of the task,
038         * or {@code null} if not scheduled before.
039         */
040        Date lastActualExecutionTime();
041
042        /**
043         * Return the last completion time of the task,
044         * or {@code null} if not scheduled before.
045         */
046        Date lastCompletionTime();
047
048}