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Document repeatable annotation semantics for @Scheduled

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Closes gh-23959
This commit is contained in:
Juergen Hoeller
2023-07-14 14:37:28 +02:00
parent 75f5dac16b
commit e30391661d
2 changed files with 12 additions and 3 deletions
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9
spring-context/src/main/java/org/springframework/scheduling/annotation/Scheduled.java
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@@ -29,8 +29,8 @@ import org.springframework.scheduling.config.ScheduledTaskRegistrar;
/**
* Annotation that marks a method to be scheduled. Exactly one of the
* {@link #cron}, {@link #fixedDelay}, or {@link #fixedRate} attributes must be
* specified.
* {@link #cron}, {@link #fixedDelay}, or {@link #fixedRate} attributes
* must be specified.
*
* <p>The annotated method must expect no arguments. It will typically have
* a {@code void} return type; if not, the returned value will be ignored
@@ -42,7 +42,10 @@ import org.springframework.scheduling.config.ScheduledTaskRegistrar;
* XML element or {@link EnableScheduling @EnableScheduling} annotation.
*
* <p>This annotation can be used as a <em>{@linkplain Repeatable repeatable}</em>
* annotation.
* annotation. If several scheduled declarations are found on the same method,
* each of them will be processed independently, with a separate trigger firing
* for each of them. As a consequence, such co-located schedules may overlap
* and execute multiple times in parallel or in immediate succession.
*
* <p>This annotation may be used as a <em>meta-annotation</em> to create custom
* <em>composed annotations</em> with attribute overrides.