javax.enterprise.context.spi
Interface Context

public interface Context

The contract between the manager and a contextual object. This interface should not be called directly by the application.

Author:

Gavin King, Pete Muir

Method Summary

<T> T	get(Contextual<T> contextual) Return an existing instance of a contextual type or create a new instance of a contextual type
<T> T	get(Contextual<T> contextual, CreationalContext<T> creationalContext) Return an existing instance of a contextual type or create a new instance of a contextual type
java.lang.Class<? extends java.lang.annotation.Annotation>	getScopeType() The scope which this context implements
boolean	isActive() The context is only active at certain points in the application lifecycle

Method Detail

getScopeType

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

The scope which this context implements

Returns:

the scope

get

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

Return an existing instance of a contextual type or create a new instance of a contextual type

Type Parameters:

T - the type of contextual type

Parameters:

contextual - the contextual type

creationalContext - the creational context in which incompletely initialized instances may be placed

Returns:

the contextual instance, or null if no creational context is given and an instance does not exist in the context

Throws:

ContextNotActiveException - if the context is not active

get

<T> T get(Contextual<T> contextual)

Return an existing instance of a contextual type or create a new instance of a contextual type

Type Parameters:

T - the type of the contextual type

Parameters:

contextual - the contextual type

Returns:

the contextual instance, or null if an instance does not exist in the context

Throws:

ContextNotActiveException - if the context is not active

isActive

boolean isActive()

The context is only active at certain points in the application lifecycle

Returns:

true if the context is active