Package org.springframework.cache.annotation

Annotation Interface CachePut

@Target({TYPE,METHOD}) @Retention(RUNTIME) @Inherited @Documented @Reflective public @interface CachePut
Annotation indicating that a method (or all methods on a class) triggers a cache put operation.

In contrast to the @Cacheable annotation, this annotation does not cause the advised method to be skipped. Rather, it always causes the method to be invoked and its result to be stored in the associated cache if the condition() and unless() expressions match accordingly. Note that Java8's Optional return types are automatically handled and its content is stored in the cache if present.

This annotation may be used as a meta-annotation to create custom composed annotations with attribute overrides.

Since:
3.1
Author:
Costin Leau, Phillip Webb, Stephane Nicoll, Sam Brannen
See Also:

  • Element Details

    • value

      @AliasFor("cacheNames") String[] value
      Alias for cacheNames().
      Default:
      {}

    • cacheNames

      @AliasFor("value") String[] cacheNames
      Names of the caches to use for the cache put operation.

      Names may be used to determine the target cache (or caches), matching the qualifier value or bean name of a specific bean definition.

      Since:
      4.2
      See Also:
      Default:
      {}

    • key

      String key
      Spring Expression Language (SpEL) expression for computing the key dynamically.

      Default is "", meaning all method parameters are considered as a key, unless a custom keyGenerator() has been set.

      The SpEL expression evaluates against a dedicated context that provides the following meta-data:

      • #result for a reference to the result of the method invocation. For supported wrappers such as Optional, #result refers to the actual object, not the wrapper
      • #root.method, #root.target, and #root.caches for references to the method, target object, and affected cache(s) respectively.
      • Shortcuts for the method name (#root.methodName) and target class (#root.targetClass) are also available.
      • Method arguments can be accessed by index. For instance the second argument can be accessed via #root.args[1], #p1 or #a1. Arguments can also be accessed by name if that information is available.
      Default:
      ""

    • keyGenerator

      String keyGenerator
      The bean name of the custom KeyGenerator to use.

      Mutually exclusive with the key() attribute.

      See Also:
      Default:
      ""

    • cacheManager

      String cacheManager
      The bean name of the custom CacheManager to use to create a default CacheResolver if none is set already.

      Mutually exclusive with the cacheResolver() attribute.

      See Also:
      Default:
      ""

    • cacheResolver

      String cacheResolver
      The bean name of the custom CacheResolver to use.
      See Also:
      Default:
      ""

    • condition

      String condition
      Spring Expression Language (SpEL) expression used for making the cache put operation conditional. Update the cache if the condition evaluates to true.

      This expression is evaluated after the method has been called due to the nature of the put operation and can therefore refer to the result.

      Default is "", meaning the method result is always cached.

      The SpEL expression evaluates against a dedicated context that provides the following meta-data:

      • #result for a reference to the result of the method invocation. For supported wrappers such as Optional, #result refers to the actual object, not the wrapper
      • #root.method, #root.target, and #root.caches for references to the method, target object, and affected cache(s) respectively.
      • Shortcuts for the method name (#root.methodName) and target class (#root.targetClass) are also available.
      • Method arguments can be accessed by index. For instance the second argument can be accessed via #root.args[1], #p1 or #a1. Arguments can also be accessed by name if that information is available.
      Default:
      ""

    • unless

      String unless
      Spring Expression Language (SpEL) expression used to veto the cache put operation. Veto updating the cache if the condition evaluates to true.

      Default is "", meaning that caching is never vetoed.

      The SpEL expression evaluates against a dedicated context that provides the following meta-data:

      • #result for a reference to the result of the method invocation. For supported wrappers such as Optional, #result refers to the actual object, not the wrapper
      • #root.method, #root.target, and #root.caches for references to the method, target object, and affected cache(s) respectively.
      • Shortcuts for the method name (#root.methodName) and target class (#root.targetClass) are also available.
      • Method arguments can be accessed by index. For instance the second argument can be accessed via #root.args[1], #p1 or #a1. Arguments can also be accessed by name if that information is available.
      Since:
      3.2
      Default:
      ""