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Java Enterprise Edition (EE)

ProcessProducer


javax.enterprise.inject.spi
Interface ProcessProducer<T,X>

Type Parameters:
T - The bean class of the bean that declares the producer method or field
X - The return type of the producer method or the type of the producer field
public interface ProcessProducer<T,X>

The container fires an event of this type for each producer method or field of each enabled bean, including resources.

Any observer of this event is permitted to wrap and/or replace the Producer. The container must use the final value of this property, after all observers have been called, whenever it calls the producer or disposer.

For example, this observer decorates the Producer for the all producer methods and field of type EntityManager.

 void decorateEntityManager(@Observes ProcessProducer<?, EntityManager> pp)
 {
    pit.setProducer(decorate(pp.getProducer()));
 }
 

If any observer method of a ProcessProducer event throws an exception, the exception is treated as a definition error by the container.

Author:
David Allen
See Also:
Producer

Method Summary
 void addDefinitionError(java.lang.Throwable t)
          Registers a definition error with the container, causing the container to abort deployment after bean discovery is complete.
 AnnotatedMember<T> getAnnotatedMember()
          Returns the AnnotatedField representing the producer field or the AnnotatedMethod representing the producer method.
 Producer<X> getProducer()
          Returns the Producer object that will be used by the container to call the producer method or read the producer field.
 void setProducer(Producer<X> producer)
          Replaces the Producer object that will be used by the container to call the producer method or read the producer field.
 

Method Detail

getAnnotatedMember

AnnotatedMember<T> getAnnotatedMember()
Returns the AnnotatedField representing the producer field or the AnnotatedMethod representing the producer method.

Returns:
the AnnotatedMember representing the producer

getProducer

Producer<X> getProducer()
Returns the Producer object that will be used by the container to call the producer method or read the producer field.

Returns:
the Producer invoker object used by the container

setProducer

void setProducer(Producer<X> producer)
Replaces the Producer object that will be used by the container to call the producer method or read the producer field.

Parameters:
producer - the new Producer object to use

addDefinitionError

void addDefinitionError(java.lang.Throwable t)
Registers a definition error with the container, causing the container to abort deployment after bean discovery is complete.

Parameters:
t - The definition error to register as a Throwable


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