Class NavigationHandler
- Direct Known Subclasses:
ConfigurableNavigationHandler
,NavigationHandlerWrapper
A NavigationHandler is passed the outcome string returned by an application action invoked for this application, and will use this (along with related state information) to choose the view to be displayed next.
A default implementation of NavigationHandler
must be
provided by the JSF implementation, which will be utilized unless
setNavigationHandler()
is called to establish a different one.
An implementation
of this class must be thread-safe.
This default instance will compare the view identifier of the current
view, the specified action binding, and the specified outcome against
any navigation rules provided in faces-config.xml
file(s).
If a navigation case matches, the current view will be changed by a call
to FacesContext.setViewRoot()
. Note that a null
outcome value will never match any navigation rule, so it can be used as an
indicator that the current view should be redisplayed.
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Constructor Summary
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Method Summary
Modifier and TypeMethodDescriptionabstract void
handleNavigation
(FacesContext context, String fromAction, String outcome) Perform navigation processing based on the state information in the specifiedFacesContext
, plus the outcome string returned by an executed application action.void
handleNavigation
(FacesContext context, String fromAction, String outcome, String toFlowDocumentId) Overloaded variant ofhandleNavigation(javax.faces.context.FacesContext, java.lang.String, java.lang.String)
that allows the caller to provide the defining document id for a flow to be entered by this navigation.
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Constructor Details
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NavigationHandler
public NavigationHandler()
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Method Details