[Myfaces Wiki] Update of "Display Radio Buttons In Columns" by PaulSpencer

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The following page has been changed by PaulSpencer:
http://wiki.apache.org/myfaces/Display_Radio_Buttons_In_Columns

New page:
The example below will display a list of 9 buttons in 3 columns.

JSF that displays the buttons.  Notice the use of <t:radio> inside <t:dataTable>.
{{{
<t:dataTable newspaperColumns="3" var="row" value="#{buttonList.dataModel}" rowIndexVar="index">
  <t:selectOneRadio id="buttons" layout="spread">
    <f:selectItems value="#{buttonList.selectList}" />
  </t:selectOneRadio>
  <h:column>
    <t:radio for="buttons" index="#{index}" />
  </h:column>
</t:dataTable>
}}}

The class below creates a the list of 9 buttons and provides two views of the list.  getSelectList()
provides a list of SelectItems required by <t:selectOneRadio>.  getDataModel() is the same list, but
as a DataModel for <t:dataModel> to iterator over and provide an index to <t:radio>.

{{{
package com.foo.om;

import java.util.ArrayList;
import java.util.List;

import javax.faces.model.DataModel;
import javax.faces.model.ListDataModel;
import javax.faces.model.SelectItem;

public class RadioButtons
{
    private List selectList = new ArrayList();
    private DataModel dataModel;

    public RadioButtons()
    {
        selectList.add(new SelectItem("Button 1"));
        selectList.add(new SelectItem("Button 2"));
        selectList.add(new SelectItem("Button 3"));
        selectList.add(new SelectItem("Button 4"));
        selectList.add(new SelectItem("Button 5"));
        selectList.add(new SelectItem("Button 6"));
        selectList.add(new SelectItem("Button 7"));
        selectList.add(new SelectItem("Button 8"));
        selectList.add(new SelectItem("Button 9"));
        dataModel = new ListDataModel(selectList);
    }

    /** Used by <t:selectOneRadio> **/
    public List getSelectList()
    {
        return selectList;
    }

    /** Used by <t:dataTable> **/
    public DataModel getDataModel()
    {
        return dataModel;
    }
}
}}}

Declaration of the manage bean used above.
{{{
<managed-bean>
  <managed-bean-name>buttonList</managed-bean-name>
  <managed-bean-class>com.foo.om.RadioButtons</managed-bean-class>
  <managed-bean-scope>request</managed-bean-scope>
</managed-bean>
}}}