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public interface ValidateEditSupport
Interface for the Transaction.OPTION_VALIDATE_EDIT
transaction option
to check, when a transaction commits, that all of the resources that it has
modified are actually editable or (by some means supplied by the platform)
can be made to be editable. The root-level transaction should assign this
to the TransactionChangeRecorder
when it starts and remove it when
it closes.
Clients may implement this interface or extend the default implementation.
Transaction.OPTION_VALIDATE_EDIT
,
Transaction.OPTION_VALIDATE_EDIT_CONTEXT
,
ValidateEditSupport.Default
Nested Class Summary | |
---|---|
static class |
ValidateEditSupport.Default
A default implementation of the ValidateEditSupport interface,
that uses the editing domain's read-only resource map to determine
whether a resource can be edited and depends on notifications of the
Resource.isModified() property changing to track which resources
need to be validated (note that this implies that the resource is
tracking modifications). |
Method Summary | |
---|---|
void |
finalizeForCommit()
Notifies me that the transaction has successfully committed and I should clean up. |
void |
finalizeForRollback()
Notifies me that rollback has occurred and I should clean up. |
void |
handleResourceChange(Resource resource,
Notification notification)
Processes a notification from a resource that may either indicate that the resource should be added to the validate list (i.e., its persisted state is changed) or it should be removed from the validate list (e.g., because it has been unloaded). |
IStatus |
validateEdit(Transaction transaction,
Object context)
Performs validate-edit for a transaction. |
Method Detail |
---|
IStatus validateEdit(Transaction transaction, Object context)
transaction
- the root-level transaction that is attempting to commitcontext
- usually a org.eclipse.swt.widgets.Shell
providing a UI context for interaction with the user to make resources
modifiable, or null
if no such context is available and
the system should attempt to automatically validate
void handleResourceChange(Resource resource, Notification notification)
resource
- a resource to add or remove to/from the validate listnotification
- a notificationvoid finalizeForRollback()
void finalizeForCommit()
|
Copyright 2002, 2007 IBM Corporation and others. All Rights Reserved. |
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