* $Id: FacesContextFactory.java,v 1.19 2007/04/27 22:00:06 ofung Exp $
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FacesContextFactory is a factory object that creates
(if needed) and returns new
for the processing of the specified request and response objects.
Implementations may take advantage of the calls to the
release() method of the allocated
instances to pool and recycle them, rather than creating a new instance
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);
Create (if needed) and return a
that is initialized for the processing of the specified request
and response objects, utilizing the specified
instance, for this web application.
The implementation of this method must ensure that calls to the
getCurrentInstance() method of
from the same thread that called this method, will return the same
instance until the
method is called on that instance.
contextIn servlet environments, the
ServletContextthat is associated with this web application
requestIn servlet environments, the
ServletRequestthat is to be processed
responseIn servlet environments, the
ServletResponsethat is to be processed
instance being used to process this request
cannot be constructed for the specified parameters
java.lang.NullPointerExceptionif any of the parameters are