How to set one custom SQL to blank

Question

I would like to manage the update of the objects of a given descriptor in the code of an "about to update" method (toplink event).
At the same time I would like the default update statement does not occur any more. I was thinking about setting the update sql query in my descriptor, using workbench (custom sql section). But what should I write down here.
Please advice,
Chris

Answer 1

This is fairly advanced; you could do it a few different ways:
1 - Set the custom update SQL to some no-op operation, i.e. "Delete from Dual where 1 = 2".
2 - Use a redirect UpdateObjectQuery for the descriptor's update operation.
3 - Use a custom query subclass for the descriptor's update operation.
i.e. something similar to,
descriptor.getQueryManager().setUpdateQuery(new UpdateObjectQuery() {
public void executeCommit() {
// custom update code here.
public void executeCommitWithChangeSet() {
executeCommit();
4 - Use a custom call on a descriptor's update operation.
What are you doing instead of the update?