public interface TransientStateHolder
This interface is implemented by classes that need to save state that are expected to be available only on the current request.
An implementor must implement both saveTransientState(javax.faces.context.FacesContext)
and restoreTransientState(javax.faces.context.FacesContext, java.lang.Object)
methods in this class, since
these two methods have a tightly coupled contract between themselves.
In other words, if there is an inheritance hierarchy, it is not
permissible to have the saveTransientState(javax.faces.context.FacesContext)
and restoreTransientState(javax.faces.context.FacesContext, java.lang.Object)
methods reside at different levels of the hierarchy.
Modifier and Type | Method and Description |
---|---|
void |
restoreTransientState(FacesContext context,
Object state)
Restore the "transient state" using the object passed as
state.
|
Object |
saveTransientState(FacesContext context)
Return the object containing related "transient states".
|
Object saveTransientState(FacesContext context)
Return the object containing related "transient states". that could be used later to restore the "transient state".
context
- void restoreTransientState(FacesContext context, Object state)
Restore the "transient state" using the object passed as state.
If the state
argument is null
clear any previous transient
state if any and return.
context
- state
- the object containing transient valuesCopyright © 2020 The Apache Software Foundation. All rights reserved.