[Webwork-user] WebWork components: Works!!!

[Rickard <ri...@jb...>]

All,

I've been fiddling a bit with generic WebWork components. It works
GREAT!

Here's a somewhat complex example. This generic JSP component
"selectgroupmap.jsp":
<%@ taglib uri="webwork" prefix="webwork" %>

<SELECT NAME="<%=request.getParameter("name")%>">
<webwork:iterator name="$list">
<OPTGROUP LABEL="<webwork:property name="key"/>">
<webwork:iterator name="value">
<OPTION VALUE="<webwork:property name="key"/>" 
   <webwork:equals name="key"
value="$value">SELECTED</webwork:equals>><webwork:property
name="value"/></OPTION>
</webwork:iterator>
</OPTGROUP>
</webwork:iterator>
</SELECT>

included like this in a form:
Country:<jsp:include page="CountryMap.action?result=selectgroupmap.jsp"
flush="true">
  <jsp:param name="name" value="country"/>
  <jsp:param name="list" value="countries"/>
  <jsp:param name="value" value="country"/>
</jsp:include>

where CountryMap.java is:
public class CountryMap
   extends ActionSupport
{
   // Attributes ----------------------------------------------------
   Map countries;
   
   // Public --------------------------------------------------------
   public Map getCountries()
   {
      return countries;
   }
      
   // Action implementation -----------------------------------------
   public Object execute()
      throws Exception
   {
      countries = new HashMap();
      
      Map continent = new HashMap();
      continent.put("sv", "Sweden");
      continent.put("uk", "United Kingdom");
      continent.put("ge", "Germany");
      countries.put("Europe", continent);
      
      continent = new HashMap();
      continent.put("ch", "China");
      continent.put("in", "India");
      continent.put("ru", "Russia");
      countries.put("Asia", continent);
      
      continent = new HashMap();
      continent.put("us", "USA");
      continent.put("ca", "Canada");
      countries.put("North America", continent);
      
      return getResult();
   }
}

and the form that uses this control has getCountry() and setCountry()
(used for the "name" and "value" params to get the currently selected
item),
results in this HTML:
Country:

<SELECT NAME="country">

<OPTGROUP LABEL="Europe"><OPTION VALUE="sv" >Sweden</OPTION>
<OPTION VALUE="ge" >Germany</OPTION>
<OPTION VALUE="uk" >United Kingdom</OPTION>
</OPTGROUP>

<OPTGROUP LABEL="North America"><OPTION VALUE="ca" >Canada</OPTION>
<OPTION VALUE="us" >USA</OPTION>
</OPTGROUP>

<OPTGROUP LABEL="Asia"><OPTION VALUE="ru" >Russia</OPTION>
<OPTION VALUE="in" >India</OPTION>
<OPTION VALUE="ch" >China</OPTION>
</OPTGROUP>

</SELECT>
---

Is that cool or what!?! I've done a couple of other "controls" or
components, and it's just incredibly easy to work with and use.

I'm doing a bunch of these as examples and am including them with
WebWork, and am also doing an example form that shows how to use them.

Web development nirvana, here we come :-)

regards,
  Rickard

-- 
Rickard Öberg

Email: ri...@jb...