public interface EnvironmentCapable
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.
Environment, 
ConfigurableEnvironment, 
org.springframework.context.ConfigurableApplicationContext#getEnvironment()| Modifier and Type | Method and Description | 
|---|---|
| Environment | getEnvironment()Return the  Environmentassociated with this component. | 
Environment getEnvironment()
Environment associated with this component.