trigExp.setTableTriggerExtractor(new DerbyTableTriggerExtractorImpl());
_treeAPI.addExpander(DatabaseObjectType.TABLE, trigExp);
_treeAPI.addDetailTab(DatabaseObjectType.TRIGGER, new TriggerDetailsTab());
_treeAPI.addDetailTab(DatabaseObjectType.TRIGGER,
new TriggerSourceTab("The source of the trigger"));
}