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 021import org.springframework.lang.Nullable; 022 023/** 024 * Context object encapsulating last execution times and last completion time 025 * of a given task. 026 * 027 * @author Juergen Hoeller 028 * @since 3.0 029 */ 030public interface TriggerContext { 031 032 /** 033 * Return the last <i>scheduled</i> execution time of the task, 034 * or {@code null} if not scheduled before. 035 */ 036 @Nullable 037 Date lastScheduledExecutionTime(); 038 039 /** 040 * Return the last <i>actual</i> execution time of the task, 041 * or {@code null} if not scheduled before. 042 */ 043 @Nullable 044 Date lastActualExecutionTime(); 045 046 /** 047 * Return the last completion time of the task, 048 * or {@code null} if not scheduled before. 049 */ 050 @Nullable 051 Date lastCompletionTime(); 052 053}