```
@Target({METHOD,TYPE})
@Retention(RUNTIME)
@Inherited
@Documented
public @interface CacheEvict
```
Annotation indicating that a method (or all methods on a class) triggers a cache evict operation.
This annotation may be used as a meta-annotation to create custom composed annotations with attribute overrides.
从以下版本开始:
3.1
作者:
Costin Leau, Stephane Nicoll, Sam Brannen
另请参阅:
CacheConfig

可选元素概要

可选元素
修饰符和类型	可选元素	说明
`boolean`	`allEntries`	Whether all the entries inside the cache(s) are removed.
`boolean`	`beforeInvocation`	Whether the eviction should occur before the method is invoked.
`String`	`cacheManager`	The bean name of the custom `CacheManager` to use to create a default `CacheResolver` if none is set already.
`String[]`	`cacheNames`	Names of the caches to use for the cache eviction operation.
`String`	`cacheResolver`	The bean name of the custom `CacheResolver` to use.
`String`	`condition`	Spring Expression Language (SpEL) expression used for making the cache eviction operation conditional.
`String`	`key`	Spring Expression Language (SpEL) expression for computing the key dynamically.
`String`	`keyGenerator`	The bean name of the custom `KeyGenerator` to use.
`String[]`	`value`	Alias for `cacheNames()`.

- 元素详细资料
  - value
```
@AliasFor("cacheNames")
String[] value
```
    Alias for cacheNames().
    默认值:
    {}
- - cacheNames
```
@AliasFor("value")
String[] cacheNames
```
    Names of the caches to use for the cache eviction operation.
    Names may be used to determine the target cache (or caches), matching the qualifier value or bean name of a specific bean definition.
    从以下版本开始:
    4.2
    另请参阅:
    value(), CacheConfig.cacheNames()
    默认值:
    {}
- - 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, which can only be used if beforeInvocation() is false. 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.
    默认值:
    ""
- - keyGenerator
```
String keyGenerator
```
    The bean name of the custom KeyGenerator to use.
    Mutually exclusive with the key() attribute.
    另请参阅:
    CacheConfig.keyGenerator()
    默认值:
    ""
- - 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.
    另请参阅:
    SimpleCacheResolver, CacheConfig.cacheManager()
    默认值:
    ""
- - cacheResolver
```
String cacheResolver
```
    The bean name of the custom CacheResolver to use.
    另请参阅:
    CacheConfig.cacheResolver()
    默认值:
    ""
- - condition
```
String condition
```
    Spring Expression Language (SpEL) expression used for making the cache eviction operation conditional.
    Default is "", meaning the cache eviction is always performed.
    The SpEL expression evaluates against a dedicated context that provides the following meta-data:
    #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.
    默认值:
    ""
- - allEntries
```
boolean allEntries
```
    Whether all the entries inside the cache(s) are removed.
    By default, only the value under the associated key is removed.
    Note that setting this parameter to true and specifying a key() is not allowed.
    默认值:
    false
- - beforeInvocation
```
boolean beforeInvocation
```
    Whether the eviction should occur before the method is invoked.
    Setting this attribute to true, causes the eviction to occur irrespective of the method outcome (i.e., whether it threw an exception or not).
    Defaults to false, meaning that the cache eviction operation will occur after the advised method is invoked successfully (i.e., only if the invocation did not throw an exception).
    默认值:
    false

注释类型 CacheEvict

可选元素概要

元素详细资料

value

cacheNames

key

keyGenerator

cacheManager

cacheResolver

condition

allEntries

beforeInvocation