org.springframework.faces.webflow

Class FlowResponseStateManager

java.lang.Object

javax.faces.render.ResponseStateManager

org.springframework.faces.webflow.FlowResponseStateManager

All Implemented Interfaces:

javax.faces.FacesWrapper<javax.faces.render.ResponseStateManager>

public class FlowResponseStateManager
extends javax.faces.render.ResponseStateManager
implements javax.faces.FacesWrapper<javax.faces.render.ResponseStateManager>

A custom ResponseStateManager that writes JSF state to a Web Flow managed view-scoped variable. This class is plugged in via FlowRenderKit.

Since:

2.2.0

Author:

Rossen Stoyanchev, Phillip Webb

Field Summary

Fields inherited from class javax.faces.render.ResponseStateManager

CLIENT_WINDOW_PARAM, CLIENT_WINDOW_URL_PARAM, NON_POSTBACK_VIEW_TOKEN_PARAM, RENDER_KIT_ID_PARAM, VIEW_STATE_PARAM

Constructor Summary

Constructors

Constructor and Description
FlowResponseStateManager(javax.faces.render.ResponseStateManager wrapped)

Method Summary

Modifier and Type	Method and Description
java.lang.String	getCryptographicallyStrongTokenFromSession(javax.faces.context.FacesContext context)
java.lang.Object	getState(javax.faces.context.FacesContext facesContext, java.lang.String viewId)
java.lang.String	getViewState(javax.faces.context.FacesContext facesContext, java.lang.Object state) This method returns the flow execution key to be used as the value for the "javax.faces.ViewState" hidden input field.
javax.faces.render.ResponseStateManager	getWrapped()
boolean	isPostback(javax.faces.context.FacesContext context)
boolean	isStateless(javax.faces.context.FacesContext context, java.lang.String viewId)
void	writeState(javax.faces.context.FacesContext facesContext, java.lang.Object state)

Methods inherited from class javax.faces.render.ResponseStateManager

getComponentStateToRestore, getTreeStructureToRestore, writeState

Methods inherited from class java.lang.Object

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

Constructor Detail

FlowResponseStateManager

public FlowResponseStateManager(javax.faces.render.ResponseStateManager wrapped)

Method Detail

getWrapped

public javax.faces.render.ResponseStateManager getWrapped()

Specified by:

getWrapped in interface javax.faces.FacesWrapper<javax.faces.render.ResponseStateManager>

isStateless

public boolean isStateless(javax.faces.context.FacesContext context,
                           java.lang.String viewId)

Overrides:

isStateless in class javax.faces.render.ResponseStateManager

writeState

public void writeState(javax.faces.context.FacesContext facesContext,
                       java.lang.Object state)
                throws java.io.IOException

Overrides:

writeState in class javax.faces.render.ResponseStateManager

Throws:

java.io.IOException

getState

public java.lang.Object getState(javax.faces.context.FacesContext facesContext,
                                 java.lang.String viewId)

Overrides:

getState in class javax.faces.render.ResponseStateManager

getViewState

public java.lang.String getViewState(javax.faces.context.FacesContext facesContext,
                                     java.lang.Object state)

This method returns the flow execution key to be used as the value for the "javax.faces.ViewState" hidden input field. The value of this key is not important because JSF state is stored in a Web Flow managed view scoped variable. However the presence of the view state parameter alone is important for triggering actions. Hence we return the most logical value, which is the flow execution key.

Overrides:

getViewState in class javax.faces.render.ResponseStateManager

isPostback

public boolean isPostback(javax.faces.context.FacesContext context)

Overrides:

isPostback in class javax.faces.render.ResponseStateManager

getCryptographicallyStrongTokenFromSession

public java.lang.String getCryptographicallyStrongTokenFromSession(javax.faces.context.FacesContext context)

Overrides:

getCryptographicallyStrongTokenFromSession in class javax.faces.render.ResponseStateManager