com.sdm.quasar.client.core.dialogbase.services
Class AbstractActivationService

java.lang.Object
  com.sdm.quasar.client.core.dialog.AbstractPerChildService
      com.sdm.quasar.client.core.dialogbase.services.AbstractActivationService

All Implemented Interfaces:

ActivationService, Disposable, Service

public abstract class AbstractActivationService

extends AbstractPerChildService

implements ActivationService

A basic implementation of ActivationService. The concrete implementation should use this SubDialogControl (see AbstractPerChildService.getSubDialogControl()) to activate or deactivate the subdialog when requested.

Note: This class registers itself as ActivationService to the SubDialogControl given. Use the registrationContext object to unregister this service.

Version:

1.0

Author:

Thomas Wolf

Constructor Summary

AbstractActivationService(DialogControl dialogControl, SubDialogControl subDialogControl, java.lang.String registrationContext)
Creates a new AbstractActivationService.

Method Summary

protected boolean	canDeactivate() Queries the registered objection callbacks that are concerned with a deactivation of the sub dialog installed for.
protected boolean	canDeactivate(DialogInstanceId dialogInstanceId) Queries the registered objection callbacks that are concerned with a deactivation of the given diid to see if any object to deactivation.
void	dispose() Disposes the component.
protected boolean	isActive() Returns true, if the subdialog acting for is currently active or is activating.

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

getDialogControl, getSubDialogControl

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.sdm.quasar.client.core.dialogbase.services.ActivationService

requestActivate, requestDeactivate

Constructor Detail

AbstractActivationService

public AbstractActivationService(DialogControl dialogControl,
                                 SubDialogControl subDialogControl,
                                 java.lang.String registrationContext)

Creates a new AbstractActivationService.

Method Detail

isActive

protected boolean isActive()

Returns true, if the subdialog acting for is currently active or is activating.

canDeactivate

protected boolean canDeactivate()

Queries the registered objection callbacks that are concerned with a deactivation of the sub dialog installed for.

Returns:

true iff no registered callback has objected

canDeactivate

protected boolean canDeactivate(DialogInstanceId dialogInstanceId)

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

Returns:

true iff no registered callback has objected

dispose

public void dispose()
             throws DisposeException

Description copied from interface: Disposable

Disposes the component.

Important:
This method is called by an administrating component and must never be called directly.

The implementation should release any resources or objects allocated and any services registered. Furthermore, this method should be developed carefully to free a maximum of resources even when the system may have become unstable. In case of one or multiple errors, you should collect them in a DisposeException, continue with the execution, and throw it at the end of the method.

Note: The implementation must not return before the component is disposed. Any threads or asynchronous calls started must be completed before this method returns.

Specified by:

dispose in interface Disposable

Throws:

DisposeException - if there was one or more errors while disposing the component.

See Also:

Disposable.dispose()