com.sdm.quasar.client.core.dialogbase.features
Class ActivationObjectionFeature

java.lang.Object
  com.sdm.quasar.client.core.dialog.AbstractFeature
      com.sdm.quasar.client.core.dialogbase.features.ActivationObjectionFeature

All Implemented Interfaces:

ActivationObjectionService, Feature, Service, SystemInfoProvider

public class ActivationObjectionFeature

extends AbstractFeature

implements ActivationObjectionService

Offers a default implementation of the ActivationObjectionService to a dialog.

To use the feature, a DialogHierarchyService has to be installed (which is a system core service).

Version:

1.0

Author:

Thomas Wolf, sd&m AG, Bernd Olleck, sd&m AG, Martin Haft, sd&m AG

Nested Class Summary

Nested classes inherited from class com.sdm.quasar.client.core.dialogbase.services.ActivationObjectionService

ActivationObjectionService.DeactivationObjectionCallback

Constructor Summary

ActivationObjectionFeature()

Method Summary

boolean	canDeactivate(DialogInstanceId diid) Queries the registered objection callbacks that are concerned with a deactivation of the given diid to see if any object to deactivation.
protected void	dispose() Called when the feature or dialog is disposed.
protected DialogHierarchyService	getDialogHierarchyService() Returns the DialogHierarchyService to be used.
protected void	init() Called when the feature is initializing.
void	registerObjectionCallback(DialogInstanceId diid, ActivationObjectionService.DeactivationObjectionCallback callback) Registers a callback that is questioned before the dialog will be deactivated or released.
void	unregisterObjectionCallback(DialogInstanceId diid, ActivationObjectionService.DeactivationObjectionCallback callback) Unregisters a callback object.

Methods inherited from class com.sdm.quasar.client.core.dialog.AbstractFeature

activate, attachDialogControl, collectSystemInfo, deactivate, disposeFeature, getDialogControl, isInitialized, prepare, release

Methods inherited from class java.lang.Object

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

Constructor Detail

ActivationObjectionFeature

public ActivationObjectionFeature()

Method Detail

init

protected void init()

Description copied from class: AbstractFeature

Called when the feature is initializing. This is normally done, when the feature is connected to the lifecycle of the DialogControl installed to. To access the DialogControl use the AbstractFeature.getDialogControl() method.

Override this method to perform some action on initialization e.g. register public services.

Specified by:

init in class AbstractFeature

See Also:

com.sdm.quasar.client.core.dialog.features.AbstractFeature#init()

dispose

protected void dispose()
                throws DisposeException

Description copied from class: AbstractFeature

Called when the feature or dialog is disposed. Override this method to clean up resources and free memory when disposing.

Specified by:

dispose in class AbstractFeature

Throws:

DisposeException

See Also:

com.sdm.quasar.client.core.dialog.features.AbstractFeature#dispose()

registerObjectionCallback

public void registerObjectionCallback(DialogInstanceId diid,
                                      ActivationObjectionService.DeactivationObjectionCallback callback)

Description copied from interface: ActivationObjectionService

Registers a callback that is questioned before the dialog will be deactivated or released.

Note that a dialog should unregister the callback when it is released.

Specified by:

registerObjectionCallback in interface ActivationObjectionService

Parameters:

diid - the id of the dialog instance that is concerned

callback - the callback object to be questioned

See Also:

ActivationObjectionService.registerObjectionCallback(com.sdm.quasar.client.core.dialog.DialogInstanceId, com.sdm.quasar.client.core.dialogbase.services.ActivationObjectionService.DeactivationObjectionCallback)

unregisterObjectionCallback

public void unregisterObjectionCallback(DialogInstanceId diid,
                                        ActivationObjectionService.DeactivationObjectionCallback callback)

Description copied from interface: ActivationObjectionService

Unregisters a callback object. If the callback object is not registered for the given dialog instance id nothing happens.

Specified by:

unregisterObjectionCallback in interface ActivationObjectionService

Parameters:

diid - the id of the dialog instance that is concerned

callback - the callback object to be removed

See Also:

ActivationObjectionService.unregisterObjectionCallback(com.sdm.quasar.client.core.dialog.DialogInstanceId, com.sdm.quasar.client.core.dialogbase.services.ActivationObjectionService.DeactivationObjectionCallback)

canDeactivate

public boolean canDeactivate(DialogInstanceId diid)

Description copied from interface: ActivationObjectionService

Queries the registered objection callbacks that are concerned with a deactivation of the given diid to see if any object to deactivation.

Specified by:

canDeactivate in interface ActivationObjectionService

Parameters:

diid - the instance id of the dialog that should be deactivated

Returns:

true iff no registered callback has objected

See Also:

ActivationObjectionService.canDeactivate(com.sdm.quasar.client.core.dialog.DialogInstanceId)

getDialogHierarchyService

protected DialogHierarchyService getDialogHierarchyService()

Returns the DialogHierarchyService to be used.