layout.add(pager);
final TextAreaItem dsClass = new TextAreaItem("dataSourceClass", "XA Data Source Class");
layout.add(new ContentGroupLabel("XA Data Source Class"));
layout.add(dsClass.asWidget());
table.getSelectionModel().addSelectionChangeHandler(new SelectionChangeEvent.Handler() {
@Override
public void onSelectionChange(SelectionChangeEvent selectionChangeEvent) {
String xaDataSourceClass = selectionModel.getSelectedObject().getXaDataSourceClass();