Scope (Spring Framework 5.2.12.RELEASE API)

```
@Target({TYPE,METHOD})
@Retention(RUNTIME)
@Documented
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 Spring 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:
2.5
作者:
Mark Fisher, Chris Beams, Sam Brannen
另请参阅:
Component, Bean

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:
    scopeName()
    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:
    4.2
    另请参阅:
    ConfigurableBeanFactory.SCOPE_PROTOTYPE, ConfigurableBeanFactory.SCOPE_SINGLETON, WebApplicationContext.SCOPE_REQUEST, WebApplicationContext.SCOPE_SESSION, value()
    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 Spring XML.
    另请参阅:
    ScopedProxyMode
    默认值:
    org.springframework.context.annotation.ScopedProxyMode.DEFAULT