程序包 cn.taketoday.context.annotation

Annotation Interface Scope

@Documented @Target({TYPE,METHOD}) @Retention(RUNTIME) public @interface Scope
When used as a type-level annotation in conjunction with @Component, @Scope indicates the name of a scope to use for instances of the annotated type.

When used as a method-level annotation in conjunction with @Bean, @Scope indicates the name of a scope to use for the instance returned from the method.

NOTE: @Scope annotations are only introspected on the concrete bean class (for annotated components) or the factory method (for @Bean methods). In contrast to XML bean definitions, there is no notion of bean definition inheritance, and inheritance hierarchies at the class level are irrelevant for metadata purposes.

In this context, scope means the lifecycle of an instance, such as singleton, prototype, and so forth. Scopes provided out of the box in Framework may be referred to using the SCOPE_* constants available in the ConfigurableBeanFactory and WebApplicationContext interfaces.

To register additional custom scopes, see CustomScopeConfigurer.

从以下版本开始:
4.0
作者:
Mark Fisher, Chris Beams, Sam Brannen, TODAY 2021/10/26 15:33
另请参阅:

  • 可选元素概要

    可选元素
    修饰符和类型
    可选元素
    说明
    ScopedProxyMode
    proxyMode
    Specifies whether a component should be configured as a scoped proxy and if so, whether the proxy should be interface-based or subclass-based.
    String
    scopeName
    Specifies the name of the scope to use for the annotated component/bean.
    String
    value
    Alias for scopeName().

  • 元素详细资料

    • value

      @AliasFor("scopeName") String value
      Alias for scopeName().
      另请参阅:
      默认值:
      ""

    • scopeName

      @AliasFor("value") String scopeName
      Specifies the name of the scope to use for the annotated component/bean.

      Defaults to an empty string ("") which implies SCOPE_SINGLETON.

      从以下版本开始:
      4.0
      另请参阅:
      默认值:
      ""

    • proxyMode

      ScopedProxyMode proxyMode
      Specifies whether a component should be configured as a scoped proxy and if so, whether the proxy should be interface-based or subclass-based.

      Defaults to ScopedProxyMode.DEFAULT, which typically indicates that no scoped proxy should be created unless a different default has been configured at the component-scan instruction level.

      Analogous to <aop:scoped-proxy/> support in Framework XML.

      另请参阅:
      默认值:
      DEFAULT