public abstract class ExternalContextFactory extends Object implements FacesWrapper<ExternalContextFactory>
ExternalContextFactory
is a factory object that creates
(if needed) and returns new ExternalContext
instances, initialized
for the processing of the specified request and response objects.
There must be one ExternalContextFactory
instance per web
application that is utilizing JavaServer Faces. This instance can be
acquired, in a portable manner, by calling:
ExternalContextFactory factory = (ExternalContextFactory) FactoryFinder.getFactory(FactoryFinder.EXTERNAL_CONTEXT_FACTORY);
Constructor and Description |
---|
ExternalContextFactory() |
Modifier and Type | Method and Description |
---|---|
abstract ExternalContext |
getExternalContext(Object context,
Object request,
Object response)
Create (if needed)
and return an
ExternalContext instance that is initialized
for the processing of the specified request and response objects,
for this web application. |
ExternalContextFactory |
getWrapped()
If this factory has been decorated, the implementation doing the decorating may override this method to provide access to the implementation being wrapped. |
public ExternalContextFactory getWrapped()
If this factory has been decorated, the
implementation doing the decorating may override this method to provide
access to the implementation being wrapped. A default implementation
is provided that returns null
.
getWrapped
in interface FacesWrapper<ExternalContextFactory>
public abstract ExternalContext getExternalContext(Object context, Object request, Object response) throws FacesException
Create (if needed)
and return an ExternalContext
instance that is initialized
for the processing of the specified request and response objects,
for this web application.
context
- In servlet environments, the
ServletContext
that is associated with this web
applicationrequest
- In servlet environments, the
ServletRequest
that is to be processedresponse
- In servlet environments, the
ServletResponse
that is to be processedFacesException
- if a ExternalContext
cannot be
constructed for the specified parametersNullPointerException
- if any of the parameters
are null
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