br.com.caelum.vraptor.ioc

Interface Container

All Known Implementing Classes:

PicoBasedContainer, SpringBasedContainer

public interface Container

Provides components.
Registerable components can have different scopes: request (by default), session and application scope (only one instance for the entire app). App scoped components are registered through the use of the annotation \@ApplicatonScope.

Author:

Guilherme Silveira

Method Summary

Methods

Modifier and Type	Method and Description
<T> boolean	canProvide(java.lang.Class<T> type) Verifies if this container can provide an instance for the given class.
<T> T	instanceFor(java.lang.Class<T> type) Retrieves the appropriate instance for the given class.

Method Detail

instanceFor

<T> T instanceFor(java.lang.Class<T> type)

Retrieves the appropriate instance for the given class.

Type Parameters:

T -

Parameters:

type - of the required component

Returns:

the registered component

canProvide

<T> boolean canProvide(java.lang.Class<T> type)

Verifies if this container can provide an instance for the given class.

Type Parameters:

T -

Parameters:

type - of the required component

Returns:

true iff instanceFor(type) can return a valid instance.