javax.enterprise.context.spi

Interface Context

All Known Implementing Classes:

AbstractScopeContext, ApplicationContext, ConversationContext, DependentContext, ErrorContext, RequestContext, SessionScopeImpl, SingletonScope, TransactionScope

public interface Context

Represents a bean scope, storing the bean instances available to the execution context, and corresponding to a @ScopeType. The Context is an SPI class, called by the inject Manager, but not normally by application code. Applications will call BeanManager.newInstance to create a new instance of a bean. Example contexts include @ApplicationScoped for singleton objects,

Method Summary

Modifier and Type	Method and Description
<T> T	get(Contextual<T> bean) Returns a instance of a bean, creating if the bean is not already available in the context.
<T> T	get(Contextual<T> bean, CreationalContext<T> creationalContext) Internal SPI method to create a new instance of a bean, when given a creational context.
java.lang.Class<? extends java.lang.annotation.Annotation>	getScope() Returns the @ScopeType corresponding to the current context.
boolean	isActive() Returns true if the scope is currently active.

Method Detail

getScope

java.lang.Class<? extends java.lang.annotation.Annotation> getScope()

Returns the @ScopeType corresponding to the current context.

isActive

boolean isActive()

Returns true if the scope is currently active.

get

<T> T get(Contextual<T> bean)

Returns a instance of a bean, creating if the bean is not already available in the context.

Parameters:

bean - the Bean type to be created

Returns:

an injected and initialized instance

get

<T> T get(Contextual<T> bean,
          CreationalContext<T> creationalContext)

Internal SPI method to create a new instance of a bean, when given a creational context. This method is needed to handle circular initialization of bean instances. If the bean already exists in the creationalContext, return the existing bean.

Parameters:

bean - the Bean type to be created

creationalContext - - temporary context used for managing circular references

Returns:

the bean instance