import com.vaadin.server.AbstractClientConnector; //导入依赖的package包/类
public static TextOverlay extend(final Component comp)
{
	final TextOverlay overlay = new TextOverlay();
	final AbstractClientConnector compConnector = (AbstractClientConnector)comp;
	overlay.extend(compConnector);
	return overlay;
}
 

import com.vaadin.server.AbstractClientConnector; //导入依赖的package包/类
@Override
protected void extend(AbstractClientConnector target) {
    super.extend(target);

    registerRpc((CubaMultiSelectionModelServerRpc) (start, length) -> {
        if (length != 0) {
            select(getParentGrid().getContainerDataSource().getItemIds(start, length), false);
        }
    });
}
 

import com.vaadin.server.AbstractClientConnector; //导入依赖的package包/类
@Override
public void extend(AbstractClientConnector target) {
    super.extend(target);
}
 

import com.vaadin.server.AbstractClientConnector; //导入依赖的package包/类
public static void extend(TextField field) {
    new ResetButtonForTextField().extend((AbstractClientConnector) field);
}
 

import com.vaadin.server.AbstractClientConnector; //导入依赖的package包/类
public static ResetButtonForTextField extend(TextField field) {
    ResetButtonForTextField resetButton = new ResetButtonForTextField();
    resetButton.extend((AbstractClientConnector) field);
    return resetButton;
}
 

import com.vaadin.server.AbstractClientConnector; //导入依赖的package包/类
public AbstractClientConnector getEntryTable() {
	return entryTable;
}
 

import com.vaadin.server.AbstractClientConnector; //导入依赖的package包/类
/**
 * Constructor to create header wrapping extension for given Grid
 * 
 * @param grid The Grid where you want to apply header wrapping to
 * @param newDefaultRowHeight Header row height of the theme in px, e.g. Valo = 38, Reindeer = 21
 * @return
 */
public static WrappingGrid extend(Grid grid, int newDefaultRowHeight) {
	WrappingGrid g = new WrappingGrid();
	defaultRowHeight = newDefaultRowHeight;
	g.extend((AbstractClientConnector)grid);
	return g;
}