spring TriggerContext 源码
spring TriggerContext 代码
文件路径：/spring-context/src/main/java/org/springframework/scheduling/TriggerContext.java
/*
* Copyright 2002-2022 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.time.Clock;
import java.time.Instant;
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 clock to use for trigger calculation.
* @since 5.3
* @see TaskScheduler#getClock()
* @see Clock#systemDefaultZone()
*/
default Clock getClock() {
return Clock.systemDefaultZone();
}
/**
* Return the last <i>scheduled</i> execution time of the task,
* or {@code null} if not scheduled before.
* @deprecated as of 6.0, in favor on {@link #lastScheduledExecution()}
*/
@Nullable
@Deprecated
default Date lastScheduledExecutionTime() {
Instant instant = lastScheduledExecution();
return instant != null ? Date.from(instant) : null;
}
/**
* Return the last <i>scheduled</i> execution time of the task,
* or {@code null} if not scheduled before.
* @since 6.0
*/
@Nullable
Instant lastScheduledExecution();
/**
* Return the last <i>actual</i> execution time of the task,
* or {@code null} if not scheduled before.
* @deprecated as of 6.0, in favor on {@link #lastActualExecution()}
*/
@Deprecated
@Nullable
default Date lastActualExecutionTime() {
Instant instant = lastActualExecution();
return instant != null ? Date.from(instant) : null;
}
/**
* Return the last <i>actual</i> execution time of the task,
* or {@code null} if not scheduled before.
*/
@Nullable
Instant lastActualExecution();
/**
* Return the last completion time of the task,
* or {@code null} if not scheduled before.
* @deprecated as of 6.0, in favor on {@link #lastCompletion()}
*/
@Deprecated
@Nullable
default Date lastCompletionTime() {
Instant instant = lastCompletion();
return instant != null ? Date.from(instant) : null;
}
/**
* Return the last completion time of the task,
* or {@code null} if not scheduled before.
*/
@Nullable
Instant lastCompletion();
}
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