code: @Override
  	public void encodeBegin(FacesContext context, UIComponent component) throws IOException {
  		if (!component.isRendered()) {
  			return;
  		}
  		Well well = (Well) component;
  		ResponseWriter rw = context.getResponseWriter();
  		String clientId = well.getClientId();
  
  		String sz = well.getSize();
  
  		rw.startElement("div", well);
  		rw.writeAttribute("id", clientId, "id");
  		String style = well.getStyle();
  		if (null != style) {
  			rw.writeAttribute("style", style, null);
  		}
  		String styleClass = well.getStyleClass();
  		if (null == styleClass)
  			styleClass = "";
  		else
  			styleClass = " " + styleClass;
  		styleClass += Responsive.getResponsiveStyleClass(well, false);
  		Tooltip.generateTooltip(context, well, rw);
  
  		if (sz != null) {
  			rw.writeAttribute("class", "well well-" + sz + styleClass, "class");
  		} else {
  			rw.writeAttribute("class", "well" + styleClass, "class");
  		}
  		beginDisabledFieldset(well, rw);
  		
  		Object value = well.getValue();
  		if (null != value) {
  			rw.writeText(String.valueOf(value), null);
  		}
  	}
docs: This methods generates the HTML code of the current b:well.
  <code>encodeBegin</code> generates the start of the component. After the,
  the JSF framework calls <code>encodeChildren()</code> to generate the
  HTML code between the beginning and the end of the component. For
  instance, in the case of a panel component the content of the panel is
  generated by <code>encodeChildren()</code>. After that,
  <code>encodeEnd()</code> is called to generate the rest of the HTML code.
  
  @param context
  the FacesContext.
  @param component
  the current b:well.
  @throws IOException
  thrown if something goes wrong when writing the HTML code.