Java Code Examples for javax.faces.component.UIComponent#isRendered()

public void encodeChildren(FacesContext context, UIComponent component)
	throws IOException
{
  if (!component.isRendered())
  {
    return;
  }

  Iterator children = component.getChildren().iterator();
  while (children.hasNext()) {
    UIComponent child = (UIComponent) children.next();
    if(!((child instanceof org.sakaiproject.tool.messageforums.jsf.BarLinkComponent)||
        (child instanceof HtmlOutputText)))
    {
      child.encodeBegin(context);
      child.encodeChildren(context);
      child.encodeEnd(context);
    }
  }
}
 

/**
 * This methods generates the HTML code of the current b:badge.
 *
 * @param context
 *            the FacesContext.
 * @param component
 *            the current b:badge.
 * @throws IOException
 *             thrown if something goes wrong when writing the HTML code.
 */
@Override
public void encodeBegin(FacesContext context, UIComponent component) throws IOException {
	if (!component.isRendered()) {
		return;
	}
	Badge badge = (Badge) component;
	ResponseWriter rw = context.getResponseWriter();
	String clientId = badge.getClientId();

	if (!component.isRendered()) {
		return;
	}
	String styleClass = badge.getStyleClass();
	String style=badge.getStyle();
	String val = getValue2Render(context, badge);

	generateBadge(context, badge, rw, clientId, styleClass, style, val, null);
}
 

/**
 * <p>Faces render output method to output script tag.</p>
   * <p>Method Generator: org.sakaiproject.tool.assessment.devtoolsRenderMaker</p>
 *
 *  @param context   <code>FacesContext</code> for the current request
 *  @param component <code>UIComponent</code> being rendered
 *
 * @throws IOException if an input/output error occurs
 */
public void encodeBegin(FacesContext context, UIComponent component)
  throws IOException
{

  if (!component.isRendered())
  {
    return;
  }

  String name = (String) RendererUtil.getAttribute(context, component, "name");

  ResponseWriter writer = context.getResponseWriter();
  String contextPath = context.getExternalContext()
    .getRequestContextPath();
  writer.write("<a name=\"" + name +  "\"/>");
}
 

/**
 * This methods generates the HTML code of the current b:openStreetMap.
 * <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:openStreetMap.
 * @throws IOException thrown if something goes wrong when writing the HTML
 *                     code.
 */
@Override
public void encodeBegin(FacesContext context, UIComponent component) throws IOException {
	
	if (!component.isRendered()) {
		return;
	}
	OpenStreetMap openStreetMap = (OpenStreetMap) component;

	ResponseWriter rw = context.getResponseWriter();
	String clientId = openStreetMap.getClientId();

	rw.startElement("div", openStreetMap);
	rw.writeAttribute("id", clientId, "id");
	rw.writeAttribute("style", "width:" + openStreetMap.getWidth() + "; height:" + openStreetMap.getHeight(), null);

}
 

public void encodeBegin(FacesContext context, UIComponent component) throws IOException
{
	if (!component.isRendered()) return;

	ResponseWriter writer = context.getResponseWriter();
	writer.write("<xmp>");
	writer.write("***** DEBUG TAG RENDER OUTPUT *****\n\n");

	dumpJSFVariable("applicationScope", context);
	dumpJSFVariable("sessionScope", context);
	dumpJSFVariable("requestScope", context);
	dumpJSFVariable("toolScope", context);
	dumpJSFVariable("toolConfig", context);
	dumpJSFVariable("param", context);
	writer.write("</xmp>");
}
 

/**
* <p>Faces render output method .</p>
* <p>Method Generator: org.sakaiproject.tool.assessment.devtoolsRenderMaker</p>
*
*  @param context   <code>FacesContext</code> for the current request
*  @param component <code>UIComponent</code> being rendered
*
* @throws IOException if an input/output error occurs
*/
 public void encodeBegin(FacesContext context, UIComponent component)
   throws IOException {

     if (!component.isRendered()) {
       return;
     }

     ResponseWriter writer = context.getResponseWriter();
     String jsfId = (String) RendererUtil.getAttribute(context, component, "id");
     String id = jsfId;

     if (component.getId() != null &&
       !component.getId().startsWith(UIViewRoot.UNIQUE_ID_PREFIX))
     {
       id = component.getClientId(context);
     }

     String title = (String) RendererUtil.getAttribute(context, component, "title");

     writer.write("<" + BARTAG + " onclick=\"javascript:showHideDiv('" + id +
       "', '" +  RESOURCE_PATH + "');\" class=\"" + BARSTYLE + "\">");
     writer.write("  <img id=\"" + id + "__img_hide_division_" + "\" alt=\"" +
        title + "\"");
     writer.write("    src=\""   + BARIMG + "\" style=\"" + CURSOR + "\" />");
     writer.write("  " + title + "");
     writer.write("</"+ BARTAG + ">");
     writer.write("<div \" style=\"display:none\" " +
                  " id=\"" + id + "__hide_division_" + "\">");
 }
 

/**
 * Find all parameters to include by looking at nested uiparams and params of
 * navigation case
 */
protected Map<String, List<String>> getParams(NavigationCase navCase, AbstractNavLink button) {
	Map<String, List<String>> params = new LinkedHashMap<String, List<String>>();

	// UIParams
	for (UIComponent child : ((UIComponent) button).getChildren()) {
		if (child.isRendered() && (child instanceof UIParameter)) {
			UIParameter uiParam = (UIParameter) child;

			if (!uiParam.isDisable()) {
				List<String> paramValues = params.get(uiParam.getName());
				if (paramValues == null) {
					paramValues = new ArrayList<String>();
					params.put(uiParam.getName(), paramValues);
				}

				paramValues.add(String.valueOf(uiParam.getValue()));
			}
		}
	}

	// NavCase Params
	Map<String, List<String>> navCaseParams = navCase.getParameters();
	if (navCaseParams != null && !navCaseParams.isEmpty()) {
		for (Map.Entry<String, List<String>> entry : navCaseParams.entrySet()) {
			String key = entry.getKey();

			// UIParams take precedence
			if (!params.containsKey(key)) {
				params.put(key, entry.getValue());
			}
		}
	}

	return params;
}
 

public void myEncodeBegin(FacesContext context, UIComponent component) throws IOException {
	if (!component.isRendered()) {
		return;
	}
	CarouselControl carouselControl = (CarouselControl) component;
	ResponseWriter rw = context.getResponseWriter();
	// String clientId = carouselControl.getClientId();

	/**
	 * <a class=
	 * "left carousel-control" href="#myCarousel" role="button" data-slide=
	 * "prev"> <span class=
	 * "glyphicon glyphicon-chevron-left" aria-hidden="true"></span>
	 * <span class="sr-only">Previous</span> </a>
	 */

	// put custom code here
	// Simple demo widget that simply renders every attribute value
	rw.startElement("carouselControl", carouselControl);
	Tooltip.generateTooltip(context, carouselControl, rw);

	rw.writeAttribute("id", carouselControl.getId(), "id");
	Tooltip.activateTooltips(context, carouselControl);
	AJAXRenderer.generateBootsFacesAJAXAndJavaScript(context, carouselControl, rw, false);

	UIComponent parent = carouselControl.getParent();
	rw.writeAttribute("href", "#" + parent.getClientId(), "href");
	rw.writeAttribute("role", "button", "role");

	String direction = carouselControl.getDirection();
	rw.writeAttribute("data-slide", direction, "data-slide");
	String styleClass = direction + " carousel-control";
	if (null != carouselControl.getStyleClass())
		styleClass += " " + carouselControl.getStyleClass();
	rw.writeAttribute("styleClass", styleClass, "styleClass");

	rw.writeAttribute("style", carouselControl.getStyle(), "style");
}
 

/**
 * <p>Faces render output method .</p>
 * <p>Encode end of table.</p>
 *
 *  @param context   <code>FacesContext</code> for the current request
 *  @param component <code>UIComponent</code> being rendered
 *
 * @throws IOException if an input/output error occurs
 */
public void encodeEnd(FacesContext context, UIComponent component) throws
  IOException
{
  if (!component.isRendered())
  {
    return;
  }
  ResponseWriter writer = context.getResponseWriter();
  writer.endElement("table");
}
 

/**
 * This methods generates the HTML code of the current b:remoteCommand.
 * @param context the FacesContext.
 * @param component the current b:remoteCommand.
 * @throws IOException thrown if something goes wrong when writing the HTML code.
 */
@Override
public void encodeBegin(FacesContext context, UIComponent component) throws IOException {
	if (!component.isRendered()) {
		return;
	}
	RemoteCommand remoteCommand = (RemoteCommand) component;
	ResponseWriter rw = context.getResponseWriter();
	String clientId = remoteCommand.getClientId();

	String parameters=remoteCommand.getParameters();
	String parametersAsJson=null;
	if (null != parameters && parameters.length()>0) {
		parametersAsJson = "";
		String[] params = parameters.split(",");
		for (String p: params) {
			p=p.trim();
			parametersAsJson += "'" + p + "':" + p + ",";
		}
		parametersAsJson=parametersAsJson.substring(0, parametersAsJson.length()-1);
	}
	StringBuilder call = AJAXRenderer.generateAJAXCall(context, remoteCommand, null, parametersAsJson);
	String name = remoteCommand.getName();
	if (null == name) {
		throw new FacesException("b:remoteCommand: Please define the name of the JavaScript function calling the Java backend.");
	}
		
	rw.startElement("script", component);
	rw.writeAttribute("id", clientId, null);
	String c = call.toString().replace("callAjax(this,", "callAjax(document.getElementById('" + clientId + "'),");
	if (parameters!=null) {
		rw.append("function " + name + "(" + parameters + ", event){" + c + "}");
	} else {
		rw.append("function " + name + "(event){" + c + "}");
	}
	rw.endElement("script");

}
 

public void encodeBegin(FacesContext context, UIComponent component) throws IOException
{
    if(!component.isRendered()){
        //tool_bar tag is not to be rendered, return now
        return;
    }
    ResponseWriter writer = context.getResponseWriter();
    writer.write("<ul class=\"navIntraTool actionToolbar\">");
}
 

@Override
public void encodeBegin(FacesContext context, UIComponent component) throws IOException {
    boolean rendered = component.isRendered();
    if(!rendered) {
        return;
    }
    ResponseWriter w = context.getResponseWriter();

    writeButtonBar(context, w, (UIDialogContent)component);
}
 

/**
 * Helper method for recursively encoding a component.
 * @param context the given FacesContext
 * @param component the UIComponent to render
 * @throws IOException
 */
public static void encodeRecursive(FacesContext context,
  UIComponent component) throws IOException
{
  if (!component.isRendered())
  {
    return;
  }

  component.encodeBegin(context);

  if (component.getRendersChildren())
  {
    component.encodeChildren(context);
  }
  else
  {
    Iterator iter = component.getChildren().iterator();

    while (iter.hasNext())
    {
      UIComponent child = (UIComponent) iter.next();
      encodeRecursive(context, child);
    }
  }
  component.encodeEnd(context);
}
 

/**
 * 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.
 */
@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);
	}
}
 

/**
 * <p>
 * Return an Iterator over the <code>UIColumn</code> children of the
 * specified <code>UIData</code> that have a <code>rendered</code>
 * property of <code>true</code>.
 * </p>
 * 
 * @param data
 *            <code>UIData</code> for which to extract children
 */
private Iterator getColumns(UIData data) {

	List results = new ArrayList();
	Iterator kids = data.getChildren().iterator();
	while (kids.hasNext()) {
		UIComponent kid = (UIComponent) kids.next();
		if ((kid instanceof UIColumn) && kid.isRendered()) {
			results.add(kid);
		}
	}
	return (results.iterator());

}
 

protected void encodeThead(FacesContext context, DataTable table) throws IOException {
	ResponseWriter writer = context.getResponseWriter();
	ColumnGroup group = table.getColumnGroup("header");
	writer.startElement("thead", null);
	encodeFacet(context, table, table.getHeader(), DataTable.HEADER_CLASS, "th");
	if (table.isPaginator() && !table.getPaginatorPosition().equalsIgnoreCase("bottom")) {
		encodePaginatorMarkup(context, table, "top", "th", org.primefaces.component.api.UIData.PAGINATOR_TOP_CONTAINER_CLASS);
	}
	if (group != null && group.isRendered()) {
		for (UIComponent child : group.getChildren()) {
			if (child.isRendered() && child instanceof Row) {
				Row headerRow = (Row) child;
				writer.startElement("tr", null);
				for (UIComponent headerRowChild : headerRow.getChildren()) {
					if (headerRowChild.isRendered()
							&& headerRowChild instanceof Column
							&& ColumnManagementBean.isVisible((Column) headerRowChild)) {
						encodeColumnHeader(context, table, (Column) headerRowChild);
					}
				}
				writer.endElement("tr");
			}
		}
	} else {
		writer.startElement("tr", null);
		writer.writeAttribute("role", "row", null);
		for (Column column : table.getColumns()) {
			if (column.isRendered()
					&& ColumnManagementBean.isVisible(column)) {
				if (column instanceof Columns) {
					encodeColumnsHeader(context, table, (Columns) column);
				} else {
					encodeColumnHeader(context, table, column);
				}
			}
		}
		writer.endElement("tr");
	}
	writer.endElement("thead");
}
 

/**
 * This methods generates the HTML code of the current b:openStreetMap.
 * <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:openStreetMap.
 * @throws IOException thrown if something goes wrong when writing the HTML
 *                     code.
 */
@Override
public void encodeEnd(FacesContext context, UIComponent component) throws IOException {
	if (!component.isRendered()) {
		return;
	}
	OpenStreetMap openStreetMap = (OpenStreetMap) component;
	ResponseWriter rw = context.getResponseWriter();
	String clientIdRaw = openStreetMap.getClientId();
	String clientId = clientIdRaw.replace(":", "");

	rw.endElement("div");

	rw.startElement("script", component);
	rw.writeText("var " + clientId + "_map = L.map('" + clientIdRaw + "', {center: [" + openStreetMap.getCenter()
			+ "], zoom: " + openStreetMap.getZoom() + ", layers: L.tileLayer('" + openStreetMap.getUrlTemplate()
			+ "', {id: 'osm', attribution: '" + openStreetMap.getAttribution() + "', maxZoom: "
			+ openStreetMap.getMaxZoom() + ", minZoom: " + openStreetMap.getMinZoom() + "}), dragging:"
			+ openStreetMap.isDragging() + ", zoomControl:" + openStreetMap.isZoomControl() + " });", null);
	rw.writeText("if('" + openStreetMap.getMarker() + "')", null);
	rw.writeText("{", null);
	rw.writeText("var " + clientId + "_marker = L.marker([" + openStreetMap.getMarker()
			+ "],{icon: new L.Icon({iconSize: [25, 41], iconAnchor: [25, 41], popupAnchor: [-12, -45], iconUrl: 'https://cdnjs.cloudflare.com/ajax/libs/leaflet/"+openStreetMap.LEAFLET_VERSION+"/images/marker-icon.png', shadowUrl: 'https://cdnjs.cloudflare.com/ajax/libs/leaflet/"+openStreetMap.LEAFLET_VERSION+"/images/marker-shadow.png'})}).addTo("
			+ clientId + "_map);", null);
	rw.writeText("if('" + openStreetMap.getPopupMsg() + "')", null);
	rw.writeText(clientId + "_marker.bindPopup('" + openStreetMap.getPopupMsg() + "');", null);
	rw.writeText("}", null);
	rw.writeText("if(!" + openStreetMap.isZoomGlobal() + ")", null);
	rw.writeText("{", null);
	rw.writeText(clientId + "_map.touchZoom.disable();", null);
	rw.writeText(clientId + "_map.doubleClickZoom.disable();", null);
	rw.writeText(clientId + "_map.scrollWheelZoom.disable();", null);
	rw.writeText(clientId + "_map.boxZoom.disable();", null);
	rw.writeText(clientId + "_map.keyboard.disable();", null);
	rw.writeText("}", null);
	rw.writeText("if(" + openStreetMap.isMiniMap() + ")", null);
	rw.writeText("{", null);
	rw.writeText("new L.Control.MiniMap(L.tileLayer('" + openStreetMap.getUrlTemplate() + "', {}), {", null);
	rw.writeText("toggleDisplay: true,", null);
	rw.writeText("zoomAnimation: true,", null);
	rw.writeText("position: '" + openStreetMap.getMiniMapPosition() + "',", null);
	rw.writeText("width: " + openStreetMap.getMiniMapWidth() + ",", null);
	rw.writeText("height: " + openStreetMap.getMiniMapWidth(), null);
	rw.writeText("}).addTo(" + clientId + "_map);", null);
	rw.writeText("}", null);
	rw.endElement("script");
}
 

public void encodeInnerHtml(FacesContext facesContext, UIComponent component)throws IOException {

		UIData uiData = (UIData) component;
		ResponseWriter writer = facesContext.getResponseWriter();

		Styles styles = getStyles(uiData);
		
		int first = uiData.getFirst();
		int rows = uiData.getRows();
		int rowCount = uiData.getRowCount();
		if (rows <= 0)
		{
			rows = rowCount - first;
		}
		int last = first + rows;
		if (last > rowCount)
			last = rowCount;

		for (int i = first; i < last; i++)
		{
			uiData.setRowIndex(i);
			if (!uiData.isRowAvailable())
			{
                log.warn("Row is not available. Rowindex = " + i);
				return;
			}

			int columns = component.getChildCount();
			renderCategoryRow(i, columns, uiData, writer, i==first);

			beforeRow(facesContext, uiData);
			HtmlRendererUtils.writePrettyLineSeparator(facesContext);
			renderRowStart(facesContext, writer, uiData, styles, i);

			List children = component.getChildren();
			for (int j = 0, size = component.getChildCount(); j < size; j++)
			{
				UIComponent child = (UIComponent) children.get(j);
				if(child.isRendered())
				{
					encodeColumnChild(facesContext, writer, uiData, child, styles, j);
				}
			}
			renderRowEnd(facesContext, writer, uiData);

			afterRow(facesContext, uiData);
		}
	}
 

/**
   * <p>Faces render output method .</p>
   * <p>Method Generator: org.sakaiproject.tool.assessment.devtoolsRenderMaker</p>
   *
   *  @param context   <code>FacesContext</code> for the current request
   *  @param component <code>UIComponent</code> being rendered
   *
   * @throws IOException if an input/output error occurs
   */
  public void encodeBegin(FacesContext context, UIComponent component) throws
      IOException {

    if ( !component.isRendered())
    {
      return;
    }

    ResponseWriter writer = context.getResponseWriter();
    String id = (String) component.getClientId(context);
    String title = (String) RendererUtil.getAttribute(context, component, "title");
    String url = (String) RendererUtil.getAttribute(context, component, "url");
    String target = (String) RendererUtil.getAttribute(context, component, "target");
    String toolbar = (String) RendererUtil.getAttribute(context, component, "toolbar");
    String menubar = (String) RendererUtil.getAttribute(context, component, "menubar");
    String personalbar = (String) RendererUtil.getAttribute(context, component, "personalbar");
// temporary workaround ClassCastException
    String width = null;//(String) RendererUtil.getAttribute(context, component, "width");
    String height = null; //(String) RendererUtil.getAttribute(context, component, "height");
    String scrollbars = (String) RendererUtil.getAttribute(context, component, "scrollbars");
    String resizable = (String) RendererUtil.getAttribute(context, component, "resizable");

    if (title == null) {
      title = "     ";
    }
    if (target == null) {
      target = "sakai_popup"; /** todo: put in resource*/
    }
    if (width == null) {
      width = "650";
    }
    if (height == null) {
      height = "375";
    }
    toolbar = RendererUtil.makeSwitchString(toolbar, false, true, true, true, false, false);
    menubar = RendererUtil.makeSwitchString(menubar, false, true, true, true, false, false);
    personalbar = RendererUtil.makeSwitchString(personalbar, false, true, true, true, false, false);
    scrollbars = RendererUtil.makeSwitchString(scrollbars, false, true, true, true, false, false);
    resizable = RendererUtil.makeSwitchString(resizable, false, true, true, true, false, false);

    String buttonSwitch = (String) RendererUtil.getAttribute(context, component, "useButton");
    boolean useButton = Boolean.getBoolean(
        RendererUtil.makeSwitchString(buttonSwitch, false, true, true, false, false, false));

    if (useButton) {
      writer.write("<!-- DEBUG: useButton=true -->");
      writer.write("<input");
      writer.write("  id=\"" + id + "\"");
      writer.write("  type=\"button\"");
      writer.write("  title=\"" + title + "\"");
      writer.write("  value=\"" + title + "\"");
      writer.write("  onclick=\"window.open('" + url + "','" + target +
                   "', 'toolbar=" + toolbar + ",menubar=" + menubar +
                   ",personalbar=" +
                   personalbar + ",width=" + width + ",height=" + height +
                   ",scrollbars=" + scrollbars + ",resizable=" + resizable +
                   "');\" />");
    }
    else {

      writer.write("<!-- DEBUG: useButton=false -->");
      writer.write("<a");
      writer.write("  id=\"" + id + "\"");
      writer.write("  title=\"" + title + "\"");
      writer.write("  href=\"#\"");
      writer.write("  onclick=\"window.open('" + url + "','" + target +
                   "', 'toolbar=" + toolbar + ",menubar=" + menubar +
                   ",personalbar=" +
                   personalbar + ",width=" + width + ",height=" + height +
                   ",scrollbars=" + scrollbars + ",resizable=" + resizable +
                   "');\" >");
      writer.write(title);
    }

  }
 

/**
 * We put all our processing in the encodeChildren method
 * @param context
 * @param component
 * @throws IOException
 */
public void encodeChildren(FacesContext context, UIComponent component)
  throws IOException
{
  if (!component.isRendered())
  {
    return;
  }

  String clientId = null;

  if (component.getId() != null &&
    !component.getId().startsWith(UIViewRoot.UNIQUE_ID_PREFIX))
  {
    clientId = component.getClientId(context);
  }

  ResponseWriter writer = context.getResponseWriter();

  if (clientId != null)
  {
    writer.startElement("span", component);
    writer.writeAttribute("id", clientId, "id");
  }

  UIData data = (UIData) component;

  int first = data.getFirst();
  int rows = data.getRows();

  // this is a special separator attribute, not supported by UIData
  String separator = (String) component.getAttributes().get("separator");
  if (separator==null) separator="";

  for (int i = first, n = 0; n < rows; i++, n++)
  {
    data.setRowIndex(i);
    if (!data.isRowAvailable())
    {
      break;
    }

    // between any two iterations add separator if there is one
    if (i!=first) writer.write(separator);

    Iterator iter = data.getChildren().iterator();
    while (iter.hasNext())
    {
      UIComponent column = (UIComponent) iter.next();
      if (!(column instanceof UIColumn))
      {
        continue;
      }
      RendererUtil.encodeRecursive(context, column);
      }
    }
    if (clientId != null)
      {
      writer.endElement("span");
    }

  }