javax.enterprise.context.spi.Contextual Maven / Gradle / Ivy
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* Licensed under the Apache License, Version 2.0 (the "License");
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package javax.enterprise.context.spi;
import javax.enterprise.inject.CreationException;
/**
*
* Defines operations to create and destroy contextual instances of a certain type. Any implementation of {@code Contextual} is
* called a contextual type. In particular, all beans are contextual types.
*
*
* @see javax.enterprise.inject.spi.Bean
*
* @author Gavin King
* @author Nicklas Karlsson
* @author Pete Muir
*/
public interface Contextual {
/**
* Create a new instance of the contextual type. Instances should use the given
* {@link javax.enterprise.context.spi.CreationalContext} when obtaining contextual references to inject, in order to ensure
* that any dependent objects are associated with the contextual instance that is being created. An implementation may call
* {@link javax.enterprise.context.spi.CreationalContext#push(Object)} between instantiation and injection to help the
* container minimize the use of client proxy objects.
*
* @param creationalContext the context in which this instance is being created
* @return the contextual instance
* @throws CreationException if a checked exception occurs while creating the instance
*/
public T create(CreationalContext creationalContext);
/**
* Destroy an instance of the contextual type. Implementations should call
* {@link javax.enterprise.context.spi.CreationalContext#release()} to allow the container to destroy dependent objects of
* the contextual instance.
*
* @param instance the contextual instance to destroy
* @param creationalContext the context in which this instance was created
*/
public void destroy(T instance, CreationalContext creationalContext);
}