org.springframework.core.env

接口 EnvironmentCapable

public interface EnvironmentCapable

Interface indicating a component that contains and exposes an Environment reference.

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 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, org.springframework.context.ConfigurableApplicationContext#getEnvironment()

方法概要

限定符和类型	方法和说明
Environment	getEnvironment() Return the Environment associated with this component.

方法详细资料

getEnvironment

Environment getEnvironment()

Return the Environment associated with this component.