Java tutorial
/* * Copyright 2002-2012 the original author or authors. * * Licensed 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 * * https://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.springframework.scheduling; import java.util.Date; import org.springframework.lang.Nullable; /** * Context object encapsulating last execution times and last completion time * of a given task. * * @author Juergen Hoeller * @since 3.0 */ public interface TriggerContext { /** * Return the last <i>scheduled</i> execution time of the task, * or {@code null} if not scheduled before. */ @Nullable Date lastScheduledExecutionTime(); /** * Return the last <i>actual</i> execution time of the task, * or {@code null} if not scheduled before. */ @Nullable Date lastActualExecutionTime(); /** * Return the last completion time of the task, * or {@code null} if not scheduled before. */ @Nullable Date lastCompletionTime(); }