org.springframework.faces.webflow
Class JsfView

java.lang.Object
  org.springframework.faces.webflow.JsfView

All Implemented Interfaces:

View

public class JsfView
extends java.lang.Object
implements View

JSF-specific View implementation.

Author:

Jeremy Grelle, Phillip Webb

Field Summary

static java.lang.String

EVENT_KEY

Fields inherited from interface org.springframework.webflow.execution.View

RENDER_FRAGMENTS_ATTRIBUTE, USER_EVENT_STATE_ATTRIBUTE

Constructor Summary

JsfView(javax.faces.component.UIViewRoot viewRoot, javax.faces.lifecycle.Lifecycle facesLifecycle, RequestContext context)
Creates a new JSF view.

Method Summary

Event	getFlowEvent() Get the flow event the current state should handle.
java.io.Serializable	getUserEventState() A memento holding the results of processing a user event.
javax.faces.component.UIViewRoot	getViewRoot() Returns the underlying view root.
boolean	hasFlowEvent() True if a call to View.processUserEvent() raised a flow event the current state should handle.
void	processUserEvent() Executes postback-processing portions of the standard JSF lifecycle including APPLY_REQUEST_VALUES through INVOKE_APPLICATION.
void	render() Performs the standard duties of the JSF RENDER_RESPONSE phase.
void	saveState() Updates the component state stored in View scope so that it remains in sync with the updated flow execution snapshot
void	setViewRoot(javax.faces.component.UIViewRoot viewRoot)
java.lang.String	toString()
boolean	userEventQueued() True if there is a user event queued this view should process.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

EVENT_KEY

public static final java.lang.String EVENT_KEY

See Also:

Constant Field Values

Constructor Detail

JsfView

public JsfView(javax.faces.component.UIViewRoot viewRoot,
               javax.faces.lifecycle.Lifecycle facesLifecycle,
               RequestContext context)

Creates a new JSF view.

Parameters:

viewRoot - the view root

facesLifecycle - the flow faces lifecycle

context - the current flow request

Method Detail

getViewRoot

public javax.faces.component.UIViewRoot getViewRoot()

Returns the underlying view root.

Returns:

the view root

setViewRoot

public void setViewRoot(javax.faces.component.UIViewRoot viewRoot)

render

public void render()
            throws java.io.IOException

Performs the standard duties of the JSF RENDER_RESPONSE phase.

Specified by:

render in interface View

Throws:

java.io.IOException - if an IO Exception occured rendering the view

userEventQueued

public boolean userEventQueued()

Description copied from interface: View

True if there is a user event queued this view should process.

Specified by:

userEventQueued in interface View

Returns:

true if a user event is queued, false if not

processUserEvent

public void processUserEvent()

Executes postback-processing portions of the standard JSF lifecycle including APPLY_REQUEST_VALUES through INVOKE_APPLICATION.

Specified by:

processUserEvent in interface View

See Also:

View.hasFlowEvent()

saveState

public void saveState()

Updates the component state stored in View scope so that it remains in sync with the updated flow execution snapshot

Specified by:

saveState in interface View

getUserEventState

public java.io.Serializable getUserEventState()

Description copied from interface: View

A memento holding the results of processing a user event. Used to allow transient view state such as binding and validation errors to survive a flow execution redirect.

Specified by:

getUserEventState in interface View

Returns:

the serializable user event state object, or null if no event state needs managing

See Also:

View.processUserEvent()

hasFlowEvent

public boolean hasFlowEvent()

Description copied from interface: View

True if a call to View.processUserEvent() raised a flow event the current state should handle. Call View.getFlowEvent() to access the Event.

Specified by:

hasFlowEvent in interface View

Returns:

true if yes, false otherwise

getFlowEvent

public Event getFlowEvent()

Description copied from interface: View

Get the flow event the current state should handle. Returns an Event object when View.hasFlowEvent() returns true. Returns null otherwise.

Specified by:

getFlowEvent in interface View

Returns:

the event, or null if there is no event for the flow system to handle

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object