Package jakarta.faces.application

Class StateManagerWrapper

java.lang.Object

jakarta.faces.application.StateManager

jakarta.faces.application.StateManagerWrapper

All Implemented Interfaces:

FacesWrapper<StateManager>

public abstract class StateManagerWrapper
extends StateManager
implements FacesWrapper<StateManager>

Provides a simple implementation of StateManager that can be subclassed by developers wishing to provide specialized behavior to an existing StateManager instance. The default implementation of all methods is to call through to the wrapped StateManager.

Usage: extend this class and push the implementation being wrapped to the constructor and use getWrapped() to access the instance being wrapped.

Since:

1.2

Field Summary

Fields inherited from class jakarta.faces.application.StateManager

FULL_STATE_SAVING_VIEW_IDS_PARAM_NAME, IS_BUILDING_INITIAL_STATE, IS_SAVING_STATE, PARTIAL_STATE_SAVING_PARAM_NAME, SERIALIZE_SERVER_STATE_PARAM_NAME, STATE_SAVING_METHOD_CLIENT, STATE_SAVING_METHOD_PARAM_NAME, STATE_SAVING_METHOD_SERVER

Constructor Summary

Constructors

Constructor	Description
StateManagerWrapper(StateManager wrapped)	If this state manager has been decorated, the implementation doing the decorating should push the implementation being wrapped to this constructor.

Method Summary

Modifier and Type	Method	Description
String	getViewState(FacesContext context)	The default behavior of this method is to call StateManager.getViewState(jakarta.faces.context.FacesContext) on the wrapped StateManager object.
StateManager	getWrapped()	A class that implements this interface uses this method to return an instance of the class being wrapped.
boolean	isSavingStateInClient(FacesContext context)	The default behavior of this method is to call StateManager.isSavingStateInClient(jakarta.faces.context.FacesContext) on the wrapped StateManager object.
void	writeState(FacesContext context, Object state)	The default behavior of this method is to call StateManager.writeState(jakarta.faces.context.FacesContext, java.lang.Object) on the wrapped StateManager object.

Methods inherited from class java.lang.Object

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

Constructor Details

StateManagerWrapper

public StateManagerWrapper(StateManager wrapped)

If this state manager has been decorated, the implementation doing the decorating should push the implementation being wrapped to this constructor. The getWrapped() will then return the implementation being wrapped.

Parameters:

wrapped - The implementation being wrapped.

Since:

2.3

Method Details

getWrapped

public StateManager getWrapped()

Description copied from interface: FacesWrapper

A class that implements this interface uses this method to return an instance of the class being wrapped.

Specified by:

getWrapped in interface FacesWrapper<StateManager>

Returns:

the wrapped instance.

writeState

public void writeState(FacesContext context,
 Object state)
                throws IOException

The default behavior of this method is to call StateManager.writeState(jakarta.faces.context.FacesContext, java.lang.Object) on the wrapped StateManager object.

Overrides:

writeState in class StateManager

Parameters:

context - FacesContext for the current request

state - the state to be written

Throws:

IOException - when an I/O error occurs.

Since:

1.2

See Also:

• StateManager.writeState(jakarta.faces.context.FacesContext, java.lang.Object)

isSavingStateInClient

public boolean isSavingStateInClient(FacesContext context)

The default behavior of this method is to call StateManager.isSavingStateInClient(jakarta.faces.context.FacesContext) on the wrapped StateManager object.

Overrides:

isSavingStateInClient in class StateManager

Parameters:

context - the Faces context.

Returns:

true if and only if the value of the ServletContext init parameter named by the value of the constant StateManager.STATE_SAVING_METHOD_PARAM_NAME is equal (ignoring case) to the value of the constant StateManager.STATE_SAVING_METHOD_CLIENT. false otherwise.

Since:

1.2

See Also:

• StateManager.isSavingStateInClient(jakarta.faces.context.FacesContext)

getViewState

public String getViewState(FacesContext context)

The default behavior of this method is to call StateManager.getViewState(jakarta.faces.context.FacesContext) on the wrapped StateManager object.

Overrides:

getViewState in class StateManager

Parameters:

context - FacesContext for the current request

Returns:

the view state.

Since:

2.0