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@ -1,5 +1,5 @@ |
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/* |
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* Copyright 2002-2016 the original author or authors. |
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* Copyright 2002-2019 the original author or authors. |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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@ -25,7 +25,9 @@ import java.lang.annotation.Target; |
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/** |
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* Annotation that marks a method as a candidate for <i>asynchronous</i> execution. |
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* Can also be used at the type level, in which case all of the type's methods are |
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* considered as asynchronous. |
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* considered as asynchronous. Note, however, that {@code @Async} is not supported |
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* on methods declared within a |
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* {@link org.springframework.context.annotation.Configuration @Configuration} class. |
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* |
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* <p>In terms of target method signatures, any parameter types are supported. |
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* However, the return type is constrained to either {@code void} or |
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@ -55,13 +57,13 @@ public @interface Async { |
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/** |
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* A qualifier value for the specified asynchronous operation(s). |
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* <p>May be used to determine the target executor to be used when executing this |
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* method, matching the qualifier value (or the bean name) of a specific |
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* {@link java.util.concurrent.Executor Executor} or |
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* <p>May be used to determine the target executor to be used when executing |
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* the asynchronous operation(s), matching the qualifier value (or the bean |
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* name) of a specific {@link java.util.concurrent.Executor Executor} or |
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* {@link org.springframework.core.task.TaskExecutor TaskExecutor} |
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* bean definition. |
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* <p>When specified on a class level {@code @Async} annotation, indicates that the |
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* given executor should be used for all methods within the class. Method level use |
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* <p>When specified on a class-level {@code @Async} annotation, indicates that the |
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* given executor should be used for all methods within the class. Method-level use |
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* of {@code Async#value} always overrides any value set at the class level. |
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* @since 3.1.2 |
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*/ |
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