org.glassfish.hk2
Interface ScopeInstance

public interface ScopeInstance

A particular instantiation of a Scope. Will be used to store and retrieve components for that particular Scope

For example, for the "request scope", an instance of ScopeInstance is created for each request.

Author:

Jerome Dochez

See Also:

Scope.current()

Method Summary

<T> T	get(Provider<T> provider) Retrieves a stored inhabitant if present in the storage bag.
<T> T	put(Provider<T> provider, T value) Stores a inhabitant component instance.
void	release() release the backend storage and call PreDestroy.preDestroy() on all instantiated components that implement the PreDestroy interface.

Method Detail

get

<T> T get(Provider<T> provider)

Retrieves a stored inhabitant if present in the storage bag.

Type Parameters:

T - the requested instance type

Parameters:

provider - the Provider we request the instance for.

Returns:

the instance of T for that provider or null if it was never added to the bug.

put

<T> T put(Provider<T> provider,
          T value)

Stores a inhabitant component instance.

Type Parameters:

T - type of the component

Parameters:

provider - component description as an Provider

value - component instance

Returns:

the previous value associated with this provider if any,

release

void release()

release the backend storage and call PreDestroy.preDestroy() on all instantiated components that implement the PreDestroy interface.