com.portal.app.comp

Interface SharedDataManager

All Known Implementing Classes:

PAccountCreationWizard, PPurchaseOfferingWizard, PValidatingWizard

public interface SharedDataManager

Specification for a manager of (subclasses of) SharedData.

See Also:

SharedData

Method Summary

Modifier and Type	Method and Description
void	addSharedDataListener(String propertyName, PropertyChangeListener listener) Adds a shared data listener (a PropertyChangeListener) for a specific property.
void	addSharedDataVetoableListener(String propertyName, VetoableChangeListener listener) Allows a listener to register for vetoable notification of bound property changes.
void	fireSharedDataChangedNotification(String propertyName, Object oldValue, Object newValue) Reports a bound property update to any registered listeners.
void	fireSharedDataVetoableNotification(String propertyName, Object oldValue, Object newValue) Provides notification that a bound property is about to change, and gives the listeners an opportunity to reject the change.
SharedData	getSharedData() Returns the shared data.
boolean	hasListeners(String propertyName) Checks if there are any listeners for a specific property.
boolean	hasVetoListeners(String propertyName) Determines if there are veto listeners for the given property
void	removeSharedDataListener(String propertyName, PropertyChangeListener listener) Removes a shared data listener (a PropertyChangeListener) for a specific property.
void	removeSharedDataVetoableListener(String propertyName, VetoableChangeListener listener) Allows a listener to unregister for vetoable notification of bound property changes.

Method Detail

getSharedData

SharedData getSharedData()

Returns the shared data.

Returns:

Shared data.

addSharedDataVetoableListener

void addSharedDataVetoableListener(String propertyName,
                                   VetoableChangeListener listener)

Allows a listener to register for vetoable notification of bound property changes.

Parameters:

propertyName - The name of the property to listen on.

listener - The PropertyChangeListener to be added.

removeSharedDataVetoableListener

void removeSharedDataVetoableListener(String propertyName,
                                      VetoableChangeListener listener)

Allows a listener to unregister for vetoable notification of bound property changes.

Parameters:

propertyName - The name of the property to listen on.

listener - The PropertyChangeListener to be added.

fireSharedDataVetoableNotification

void fireSharedDataVetoableNotification(String propertyName,
                                        Object oldValue,
                                        Object newValue)
                                 throws PropertyVetoException

Provides notification that a bound property is about to change, and gives the listeners an opportunity to reject the change.

Parameters:

propertyName - The programmatic name of the property that was changed

oldValue - The old value of the property

newValue - The new value of the property

Throws:

PropertyVetoException

hasVetoListeners

boolean hasVetoListeners(String propertyName)

Determines if there are veto listeners for the given property

Parameters:

propertyName - The property name

Returns:

true if there are listeners; false otherwise

addSharedDataListener

void addSharedDataListener(String propertyName,
                           PropertyChangeListener listener)

Adds a shared data listener (a PropertyChangeListener) for a specific property. The listener will be invoked only when a call on fireSharedDataChangedNotification names that specific property.

Parameters:

propertyName - The name of the property to listen on.

listener - The PropertyChangeListener to be added.

removeSharedDataListener

void removeSharedDataListener(String propertyName,
                              PropertyChangeListener listener)

Removes a shared data listener (a PropertyChangeListener) for a specific property.

Parameters:

propertyName - The name of the property that was listened on.

listener - The PropertyChangeListener to be removed.

hasListeners

boolean hasListeners(String propertyName)

Checks if there are any listeners for a specific property.

Parameters:

propertyName - the property name.

Returns:

true if there are ore or more listeners for the given property

fireSharedDataChangedNotification

void fireSharedDataChangedNotification(String propertyName,
                                       Object oldValue,
                                       Object newValue)

Reports a bound property update to any registered listeners. No event is fired if old and new are equal and non-null.

Parameters:

propertyName - The programmatic name of the property that was changed

oldValue - The old value of the property

newValue - The new value of the property