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
{
		Composite tablescomposite = new Composite(parent, SWT.NONE);
		GridLayout layout = new GridLayout();
		
		tablescomposite.setLayout(layout);
		{
			GridData data = new GridData(GridData.FILL_BOTH);
			data.grabExcessVerticalSpace = true;
			tablescomposite.setLayoutData(data);
		}
		
		 
		Label dataSourceLabel = new Label( tablescomposite, SWT.LEFT );
		dataSourceLabel.setText( JdbcPlugin.getResourceString( "tablepage.label.availableItems" ) );
		{
			GridData data = new GridData();
			dataSourceLabel.setLayoutData(data);
		}
		
		availableDbObjectsTree = new Tree(tablescomposite, SWT.BORDER|SWT.MULTI );
		
		{
			GridData data = new GridData(GridData.FILL_BOTH);
			data.grabExcessHorizontalSpace = true;
			data.grabExcessVerticalSpace = true;
			
			availableDbObjectsTree.setLayoutData(data);
		}
		
		availableDbObjectsTree.addMouseListener(new MouseAdapter() {