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Delete Element - also delete Table in MySQL [message #671965]

Thu, 19 May 2011 09:28

Eclipse User

Hi there,

my elemetents represent tables in a MySQL-database. So when I delete an element (via [DEL] or Menu->Delete From Model) the tabel should also be dropped in the databse. So that the table also is dropped is working. But I wrote the code in the DeleteElementAction in the package diagram.part. But now the table is always dropped when I select the node. So where do I have to write the code, that it is only deleted when it's supposed to?

Thanks in advance.

Re: Delete Element - also delete Table in MySQL [message #672187 is a reply to message #671965]

Fri, 20 May 2011 05:04

Eclipse User

Hi,

you can add an Command which extends an AbstractTransactionalCommand in XXXItemSemanticEditPolicy

for example AfterElementDeleteCommand extends AbstractTransactionalCommand {
...
	@Override
	protected CommandResult doExecuteWithResult(IProgressMonitor monitor,
			IAdaptable info) throws ExecutionException {
                  //add here your mysql code
        }

and then add this command to


protected Command getDestroyElementCommand(DestroyElementRequest req) {

		View view = (View) getHost().getModel();
		CompositeTransactionalCommand cmd = new CompositeTransactionalCommand(
				getEditingDomain(), null);
		cmd.setTransactionNestingEnabled(false);

cmd.add(new AfterElementDeleteCommand(getEditingDomain(), "delte", null, (IGraphicalEditPart) getHost()));

[Updated on: Fri, 20 May 2011 05:06] by Moderator

Re: Delete Element - also delete Table in MySQL [message #673682 is a reply to message #672187]

Tue, 24 May 2011 09:11

Eclipse User

Thanks for your reply. But that leads me to another question. How do I pass the editPart throught the XXXSemanticEditPolicy to my XXXDeleteCommand?

Thanks in advance.

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