org.springframework.core.env

Interface EnvironmentCapable

All Known Subinterfaces:

ApplicationContext, ConfigurableApplicationContext, ConfigurablePortletApplicationContext, ConfigurableWebApplicationContext, WebApplicationContext

All Known Implementing Classes:

AbstractApplicationContext, AbstractBeanDefinitionReader, AbstractRefreshableApplicationContext, AbstractRefreshableConfigApplicationContext, AbstractRefreshablePortletApplicationContext, AbstractRefreshableWebApplicationContext, AbstractXmlApplicationContext, AnnotationConfigApplicationContext, AnnotationConfigWebApplicationContext, ClassPathBeanDefinitionScanner, ClassPathScanningCandidateComponentProvider, ClassPathXmlApplicationContext, DispatcherPortlet, DispatcherServlet, FileSystemXmlApplicationContext, FrameworkPortlet, FrameworkServlet, GenericApplicationContext, GenericPortletBean, GenericWebApplicationContext, GenericXmlApplicationContext, HttpServletBean, PropertiesBeanDefinitionReader, ResourceAdapterApplicationContext, ResourceServlet, StaticApplicationContext, StaticPortletApplicationContext, StaticWebApplicationContext, XmlBeanDefinitionReader, XmlPortletApplicationContext, XmlWebApplicationContext

public interface EnvironmentCapable

Interface indicating a component contains and makes available an Environment object.

All Spring application contexts are EnvironmentCapable, and the interface is used primarily for performing instanceof checks 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, ApplicationContext extends EnvironmentCapable, and thus exposes a getEnvironment() method; however, ConfigurableApplicationContext redefines getEnvironment() and narrows the signature to return a ConfigurableEnvironment. The effect is that an Environment object is 'read-only' until it accessed from a ConfigurableApplicationContext, at which point it too may be configured.

Since:

3.1

Author:

Chris Beams

See Also:

Environment, ConfigurableEnvironment, ConfigurableApplicationContext.getEnvironment()

Method Summary

Methods

Modifier and Type	Method and Description
Environment	getEnvironment() Return the Environment for this object

Method Detail

getEnvironment

Environment getEnvironment()

Return the Environment for this object