Bug 123915 Add table-fetch limitation when DataSet Editor is populating table names.
When fetch table names from database of large volume of data, there lies a possibility that the editor window will be frozen because of the population of huge number of table names. This should be enhanced. A handy solution might be limiting the number of table names being fetched each schema.
data/org.eclipse.birt.report.data.oda.jdbc.ui/src/org/eclipse/birt/report/data/oda/jdbc/ui/editors/SQLDataSetEditorPage.java
{
	private int operationCode = -1;
	private SourceViewer viewer = null;
	public SQLEditorAction( SourceViewer viewer, String text, int operationCode )
	{
		super( text );
		this.operationCode = operationCode;
		this.viewer = viewer;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.jface.action.IAction#run()
	 */
	public void run( )
	{
		viewer.doOperation( operationCode );
	}
	public void update( )
	{
		setEnabled( viewer.canDoOperation( operationCode ) );
	}
	
 }
class DbType