接口 EnvironmentCapable
- 所有已知子接口:
ApplicationContext,ConfigurableApplicationContext,ConfigurablePortletApplicationContext,ConfigurableWebApplicationContext,WebApplicationContext
- 所有已知实现类:
AbstractApplicationContext,AbstractBeanDefinitionReader,AbstractRefreshableApplicationContext,AbstractRefreshableConfigApplicationContext,AbstractRefreshablePortletApplicationContext,AbstractRefreshableWebApplicationContext,AbstractRequestLoggingFilter,AbstractXmlApplicationContext,AnnotationConfigApplicationContext,AnnotationConfigWebApplicationContext,CharacterEncodingFilter,ClassPathBeanDefinitionScanner,ClassPathScanningCandidateComponentProvider,ClassPathXmlApplicationContext,CommonsRequestLoggingFilter,CorsFilter,DelegatingFilterProxy,DispatcherPortlet,DispatcherServlet,FileSystemXmlApplicationContext,ForwardedHeaderFilter,FrameworkPortlet,FrameworkServlet,GenericApplicationContext,GenericFilterBean,GenericGroovyApplicationContext,GenericPortletBean,GenericWebApplicationContext,GenericXmlApplicationContext,GroovyBeanDefinitionReader,GroovyWebApplicationContext,HiddenHttpMethodFilter,HttpPutFormContentFilter,HttpServletBean,Log4jNestedDiagnosticContextFilter,MultipartFilter,OncePerRequestFilter,OpenEntityManagerInViewFilter,OpenPersistenceManagerInViewFilter,OpenSessionInViewFilter,OpenSessionInViewFilter,OpenSessionInViewFilter,PropertiesBeanDefinitionReader,RelativeRedirectFilter,RequestContextFilter,ResourceAdapterApplicationContext,ResourceServlet,ResourceUrlEncodingFilter,ServletContextRequestLoggingFilter,ShallowEtagHeaderFilter,StaticApplicationContext,StaticPortletApplicationContext,StaticWebApplicationContext,XmlBeanDefinitionReader,XmlPortletApplicationContext,XmlWebApplicationContext
public interface EnvironmentCapable
Interface indicating a component that contains and exposes anEnvironmentreference.All Spring application contexts are EnvironmentCapable, and the interface is used primarily for performing
instanceofchecks in framework methods that accept BeanFactory instances that may or may not actually be ApplicationContext instances in order to interact with the environment if indeed it is available.As mentioned,
ApplicationContextextends EnvironmentCapable, and thus exposes agetEnvironment()method; however,ConfigurableApplicationContextredefinesgetEnvironment()and narrows the signature to return aConfigurableEnvironment. The effect is that an Environment object is 'read-only' until it is being accessed from a ConfigurableApplicationContext, at which point it too may be configured.- 从以下版本开始:
- 3.1
- 作者:
- Chris Beams
- 另请参阅:
Environment,ConfigurableEnvironment,ConfigurableApplicationContext.getEnvironment()
方法概要
所有方法 实例方法 抽象方法 修饰符和类型 方法 说明 EnvironmentgetEnvironment()Return theEnvironmentassociated with this component (may benullor a default environment).
方法详细资料
getEnvironment
Environment getEnvironment()
Return theEnvironmentassociated with this component (may benullor a default environment).