org.apache.webbeans.event

Class ObserverMethodImpl<T>

java.lang.Object

org.apache.webbeans.event.ObserverMethodImpl<T>

Type Parameters:

T - event type

All Implemented Interfaces:

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

public class ObserverMethodImpl<T>
extends Object
implements javax.enterprise.inject.spi.ObserverMethod<T>

Defines observers that are declared in observer methods.

Example:

  public class X {
      
      public void afterLoggedIn(@Observes @Current LoggedInEvent event)
      {
          .....
      }
  }
 

Above class X instance observes for the event with type LoggedInEvent and event qualifier is Current. Whenever event is fired, its ObserverMethod#notify() method is called.

Version:

$Rev: 1368981 $ $Date: 2012-08-03 16:31:17 +0200 (Fri, 03 Aug 2012) $

Constructor Summary

Constructors

Constructor and Description
ObserverMethodImpl(InjectionTargetBean<?> bean, Method observerMethod, boolean ifExist) Creates a new bean observer instance.
ObserverMethodImpl(InjectionTargetBean<?> bean, Method observerMethod, boolean ifExist, Annotation[] qualifiers, Type observedEventType) used if the qualifiers and event type are already known, e.g. from the XML.

Method Summary

Methods

Modifier and Type	Method and Description
protected List<org.apache.webbeans.event.ObserverMethodImpl.ObserverParams>	getAnnotatedMethodArguments(Object event) Gets observer method parameters.
Class<?>	getBeanClass() Returns observer owner bean.
protected List<org.apache.webbeans.event.ObserverMethodImpl.ObserverParams>	getMethodArguments(Object event) Returns list of observer method parameters.
Set<Annotation>	getObservedQualifiers()
Type	getObservedType()
Method	getObserverMethod()
javax.enterprise.event.Reception	getReception()
javax.enterprise.event.TransactionPhase	getTransactionPhase()
protected WebBeansContext	getWebBeansContext()
void	notify(T event)
void	setAnnotatedMethod(javax.enterprise.inject.spi.AnnotatedMethod<T> annotatedMethod) Sets annotated method.
void	setObserverMethod(Method m) Provides a way to set the observer method.

Methods inherited from class java.lang.Object

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

Constructor Detail

ObserverMethodImpl

public ObserverMethodImpl(InjectionTargetBean<?> bean,
                  Method observerMethod,
                  boolean ifExist)

Creates a new bean observer instance.

Parameters:

bean - owner

observerMethod - method

ifExist - if exist parameter

ObserverMethodImpl

public ObserverMethodImpl(InjectionTargetBean<?> bean,
                  Method observerMethod,
                  boolean ifExist,
                  Annotation[] qualifiers,
                  Type observedEventType)

used if the qualifiers and event type are already known, e.g. from the XML.

Parameters:

bean -

observerMethod -

ifExist -

qualifiers -

observedEventType -

Method Detail

setAnnotatedMethod

public void setAnnotatedMethod(javax.enterprise.inject.spi.AnnotatedMethod<T> annotatedMethod)

Sets annotated method.

Parameters:

annotatedMethod - annotated method

notify

public void notify(T event)

Specified by:

notify in interface javax.enterprise.inject.spi.ObserverMethod<T>

getMethodArguments

protected List<org.apache.webbeans.event.ObserverMethodImpl.ObserverParams> getMethodArguments(Object event)

Returns list of observer method parameters.

Parameters:

event - event instance

Returns:

list of observer method parameters

getAnnotatedMethodArguments

protected List<org.apache.webbeans.event.ObserverMethodImpl.ObserverParams> getAnnotatedMethodArguments(Object event)

Gets observer method parameters.

Parameters:

event - event payload

Returns:

observer method parameters

getBeanClass

public Class<?> getBeanClass()

Returns observer owner bean.

Specified by:

getBeanClass in interface javax.enterprise.inject.spi.ObserverMethod<T>

Returns:

the bean

getObservedQualifiers

public Set<Annotation> getObservedQualifiers()

Specified by:

getObservedQualifiers in interface javax.enterprise.inject.spi.ObserverMethod<T>

getObservedType

public Type getObservedType()

Specified by:

getObservedType in interface javax.enterprise.inject.spi.ObserverMethod<T>

getReception

public javax.enterprise.event.Reception getReception()

Specified by:

getReception in interface javax.enterprise.inject.spi.ObserverMethod<T>

getTransactionPhase

public javax.enterprise.event.TransactionPhase getTransactionPhase()

Specified by:

getTransactionPhase in interface javax.enterprise.inject.spi.ObserverMethod<T>

getObserverMethod

public Method getObserverMethod()

getWebBeansContext

protected WebBeansContext getWebBeansContext()

setObserverMethod

public void setObserverMethod(Method m)

Provides a way to set the observer method. This may need to be done for EJBs so that the method used will be from an interface and not the EJB class that likely can not be invoked on the EJB proxy

Parameters:

m - method to be invoked as the observer