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javax.faces.context
Class FacesContextFactory

java.lang.Object
 extended by javax.faces.context.FacesContextFactory

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public abstract class FacesContextFactory
extends Object

FacesContextFactory is a factory object that creates (if needed) and returns new FacesContext instances, initialized for the processing of the specified request and response objects. Implementations may take advantage of the calls to the release() method of the allocated FacesContext instances to pool and recycle them, rather than creating a new instance every time.

There must be one FacesContextFactory instance per web application that is utilizing JavaServer Faces. This instance can be acquired, in a portable manner, by calling:

 FacesContextFactory factory = (FacesContextFactory)
 FactoryFinder.getFactory(FactoryFinder.FACES_CONTEXT_FACTORY);
 

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Constructor Summary
FacesContextFactory()

Method Summary
abstract FacesContext	getFacesContext(Object context, Object request, Object response, Lifecycle lifecycle) Create (if needed) and return a FacesContext instance that is initialized for the processing of the specified request and response objects, utilizing the specified Lifecycle instance, for this web application.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FacesContextFactory

public FacesContextFactory()

Method Detail

getFacesContext

public abstract FacesContext getFacesContext(Object context,
 Object request,
 Object response,
 Lifecycle lifecycle)
 throws FacesException

Create (if needed) and return a FacesContext instance that is initialized for the processing of the specified request and response objects, utilizing the specified Lifecycle instance, for this web application.

The implementation of this method must ensure that calls to the getCurrentInstance() method of FacesContext, from the same thread that called this method, will return the same FacesContext instance until the release() method is called on that instance.

Parameters:

context - In servlet environments, the ServletContext that is associated with this web application

request - In servlet environments, the ServletRequest that is to be processed

response - In servlet environments, the ServletResponse that is to be processed

lifecycle - The Lifecycle instance being used to process this request

Throws:

FacesException - if a FacesContext cannot be constructed for the specified parameters

NullPointerException - if any of the parameters are null

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