org.jboss.weld

Class AbstractCDI<T>

java.lang.Object

javax.enterprise.inject.spi.CDI<T>

org.jboss.weld.AbstractCDI<T>

Type Parameters:

T -

All Implemented Interfaces:

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

Direct Known Subclasses:

SimpleCDI

public abstract class AbstractCDI<T>
extends javax.enterprise.inject.spi.CDI<T>
implements WeldInstance<T>

Abstract implementation of CDI which forwards all Instance methods to a delegate. Furthermore, it allows the calling class to be identified using the getCallingClassName() method.

Author:

Jozef Hartinger

Nested Class Summary

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

WeldInstance.Handler<T>

Field Summary

Fields

Modifier and Type	Field and Description
protected Set<String>	knownClassNames

Fields inherited from class javax.enterprise.inject.spi.CDI

configuredProvider, discoveredProviders

Constructor Summary

Constructors

Constructor and Description
AbstractCDI()

Method Summary

Modifier and Type	Method and Description
void	destroy(T instance)
T	get()
protected String	getCallingClassName() Examines StackTraceElements to figure out which class invoked a method on CDI.
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.
protected WeldInstance<T>	getInstance() Subclasses are allowed to override the default behavior, i.e. to cache instance per BeanManager.
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()
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)

Methods inherited from class javax.enterprise.inject.spi.CDI

current, getBeanManager, setCDIProvider

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Field Detail

knownClassNames

protected final Set<String> knownClassNames

Constructor Detail

AbstractCDI

public AbstractCDI()

Method Detail

iterator

public Iterator<T> iterator()

Specified by:

iterator in interface Iterable<T>

get

public T get()

Specified by:

get in interface javax.inject.Provider<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>

isUnsatisfied

public boolean isUnsatisfied()

Specified by:

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

isAmbiguous

public boolean isAmbiguous()

Specified by:

isAmbiguous in interface javax.enterprise.inject.Instance<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

getCallingClassName

protected String getCallingClassName()

Examines StackTraceElements to figure out which class invoked a method on CDI.

getInstance

protected WeldInstance<T> getInstance()

Subclasses are allowed to override the default behavior, i.e. to cache instance per BeanManager.

Returns:

the Instance the relevant calls are delegated to