org.jboss.weld.bean.builtin

Class InstanceImpl<T>

java.lang.Object

org.jboss.weld.bean.builtin.AbstractFacade<T,javax.enterprise.inject.Instance<T>>

org.jboss.weld.bean.builtin.InstanceImpl<T>

Type Parameters:

T -

All Implemented Interfaces:

Serializable, Iterable<T>, javax.enterprise.inject.Instance<T>, javax.inject.Provider<T>, WeldInstance<T>

public class InstanceImpl<T>
extends AbstractFacade<T,javax.enterprise.inject.Instance<T>>
implements WeldInstance<T>, Serializable

Helper implementation for Instance for getting instances

Author:

Gavin King

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.jboss.weld.bean.builtin.AbstractFacade

AbstractFacade.AbstractFacadeSerializationProxy<T,X>

Nested classes/interfaces inherited from interface org.jboss.weld.inject.WeldInstance

WeldInstance.Handler<T>

Method Summary

Modifier and Type	Method and Description
void	destroy(T instance)
T	get()
WeldInstance.Handler<T>	getHandler() Obtains a contextual reference handler for the bean that has the required type and required qualifiers and is eligible for injection.
Iterable<WeldInstance.Handler<T>>	handlers() Allows to iterate over contextual reference handlers for all the beans that have the required type and required qualifiers and are eligible for injection.
boolean	isAmbiguous()
boolean	isResolvable()
boolean	isUnsatisfied()
Iterator<T>	iterator()
static <I> javax.enterprise.inject.Instance<I>	of(javax.enterprise.inject.spi.InjectionPoint injectionPoint, javax.enterprise.context.spi.CreationalContext<I> creationalContext, BeanManagerImpl beanManager)
WeldInstance<T>	select(Annotation... qualifiers)
<U extends T> WeldInstance<U>	select(Class<U> subtype, Annotation... qualifiers)
<U extends T> WeldInstance<U>	select(javax.enterprise.util.TypeLiteral<U> subtype, Annotation... qualifiers)
String	toString() Gets a string representation

Methods inherited from class org.jboss.weld.bean.builtin.AbstractFacade

equals, getBeanManager, getCreationalContext, getFacadeType, getInjectionPoint, getQualifiers, getType, hashCode

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Method Detail

of

public static <I> javax.enterprise.inject.Instance<I> of(javax.enterprise.inject.spi.InjectionPoint injectionPoint,
                                                         javax.enterprise.context.spi.CreationalContext<I> creationalContext,
                                                         BeanManagerImpl beanManager)

get

public T get()

Specified by:

get in interface javax.inject.Provider<T>

toString

public String toString()

Gets a string representation

Overrides:

toString in class Object

Returns:

A string representation

iterator

public Iterator<T> iterator()

Specified by:

iterator in interface Iterable<T>

isAmbiguous

public boolean isAmbiguous()

Specified by:

isAmbiguous in interface javax.enterprise.inject.Instance<T>

isUnsatisfied

public boolean isUnsatisfied()

Specified by:

isUnsatisfied in interface javax.enterprise.inject.Instance<T>

select

public WeldInstance<T> select(Annotation... qualifiers)

Specified by:

select in interface javax.enterprise.inject.Instance<T>

Specified by:

select in interface WeldInstance<T>

select

public <U extends T> WeldInstance<U> select(Class<U> subtype,
                                            Annotation... qualifiers)

Specified by:

select in interface javax.enterprise.inject.Instance<T>

Specified by:

select in interface WeldInstance<T>

select

public <U extends T> WeldInstance<U> select(javax.enterprise.util.TypeLiteral<U> subtype,
                                            Annotation... qualifiers)

Specified by:

select in interface javax.enterprise.inject.Instance<T>

Specified by:

select in interface WeldInstance<T>

destroy

public void destroy(T instance)

Specified by:

destroy in interface javax.enterprise.inject.Instance<T>

getHandler

public WeldInstance.Handler<T> getHandler()

Description copied from interface: WeldInstance

Obtains a contextual reference handler for the bean that has the required type and required qualifiers and is eligible for injection.

Note that each invocation of this method results in a separate Provider.get() invocation.

Specified by:

getHandler in interface WeldInstance<T>

Returns:

a new handler

isResolvable

public boolean isResolvable()

Specified by:

isResolvable in interface WeldInstance<T>

Returns:

true if satisfied and not ambiguous, false otherwise

See Also:

Instance.isAmbiguous(), Instance.isUnsatisfied()

handlers

public Iterable<WeldInstance.Handler<T>> handlers()

Description copied from interface: WeldInstance

Allows to iterate over contextual reference handlers for all the beans that have the required type and required qualifiers and are eligible for injection.

Note that the returned Iterable is stateless and so each Iterable.iterator() produces a new set of handlers.

Specified by:

handlers in interface WeldInstance<T>

Returns:

an iterable to iterate over the handlers