TransientStateHolder

All Known Subinterfaces:

TransientStateHelper

All Known Implementing Classes:

HtmlBody, HtmlColumn, HtmlCommandButton, HtmlCommandLink, HtmlCommandScript, HtmlDataTable, HtmlDoctype, HtmlForm, HtmlGraphicImage, HtmlHead, HtmlInputFile, HtmlInputHidden, HtmlInputSecret, HtmlInputText, HtmlInputTextarea, HtmlMessage, HtmlMessages, HtmlOutcomeTargetButton, HtmlOutcomeTargetLink, HtmlOutputFormat, HtmlOutputLabel, HtmlOutputLink, HtmlOutputText, HtmlPanelGrid, HtmlPanelGroup, HtmlSelectBooleanCheckbox, HtmlSelectManyCheckbox, HtmlSelectManyListbox, HtmlSelectManyMenu, HtmlSelectOneListbox, HtmlSelectOneMenu, HtmlSelectOneRadio, UIColumn, UICommand, UIComponent, UIComponentBase, UIData, UIForm, UIGraphic, UIImportConstants, UIInput, UIMessage, UIMessages, UINamingContainer, UIOutcomeTarget, UIOutput, UIPanel, UIParameter, UISelectBoolean, UISelectItem, UISelectItems, UISelectMany, UISelectOne, UIViewAction, UIViewParameter, UIViewRoot, UIWebsocket
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public interface TransientStateHolder
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This interface is implemented by classes that need to save state that is expected to be available only within the scope of 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.

An example of transient state is the "submitted" property on forms.

Since:

2.1

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`void`	`restoreTransientState(FacesContext context, java.lang.Object state)` Restore the "transient state" using the object passed as state.
`java.lang.Object`	`saveTransientState(FacesContext context)` Return the object containing related "transient states".

- Method Detail
  - saveTransientState
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java.lang.Object saveTransientState(FacesContext context)
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    Return the object containing related "transient states". that could be used later to restore the "transient state".
    
    Parameters:
    
    context - the Faces context.
    
    Returns:
    
    object containing transient values
    
    Since:
    
    2.1
  - restoreTransientState
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void restoreTransientState(FacesContext context,
                           java.lang.Object state)
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    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.
    
    Parameters:
    
    context - the Faces context
    
    state - the object containing transient values
    
    Since:
    
    2.1

Interface TransientStateHolder

Method Summary

Method Detail

saveTransientState

restoreTransientState