Jsp 2.0 and jdev 10g production (custom tags)

Question

there are some examples at
http://otn.oracle.com/sample_code/tech/java/jsps/index.html
I have certian questions it would be great if some one would clear these for me..
In JSP 1.2 if we wanted to write the custom tag's we had tag classes that extend TagSupport or TagBodySupport and the doStart() and doEnd() tag with the evaluate body. I could spit out the complete html text on an encounter of a tag! but in the JSP 2.0 a doTag() seems to take care of the intracies! how??
Now with jsp 2.0 I want to do the same... say some thing like this ....
<tg:myTag list="${somelist}"></tg:myTag> and say in my tag handler class I know what to do with this list. May be I will create complete html code and will use jspWriter to write out the html inbetween these tags!!
I have downloaded the eStore example but this class
javax.servlet.jsp.tagext.SimpleTagSupport; is not imported. So I am not able to look at the SimpleTagSupport class.
If I am trying to run the example in jdev 10g production should I have to specify that I am using jsp 2.0 so that jdev knows not to use jsp 1.2? if so how can I do this.
Does all the examples provided use the OC4J standalone? Can I use the embedded oc4J instead?
regards.

Answer 1

After reading a bit more now I know how the tags work.
However from the example I see (eStore) an array called by name "products" is created and set on the jspContext. If I already have the list and want to pass on the list which is in a bean or a session or a request can I provide it this way.
<tag:myTag var=${bean.list}>
or
<tag:myTag var=${session.list}>
or
<tag:myTag var=${request.list}>in the .tld file I should specify the attribute var and whether it should be runtime evaluable.
and in the TagClass
private Collection var;
private String listName;
public void setVar(Colloection aList) {
  this.var = aList;
public Collection getVar() {
  return var;
public void doTag( ) throws JspException{
  // do i always need to this next line ------
  getJspContext( ).setAttribute(listName, getVar());
}so that in my .tag file I can use some thing like this
<c:forEach var="list" items="${item}">
  <td>${item.subObject.name}</td>
  <td>${item.subObject.value}</td>
</c:forEach>And finally... as and when a tag is encountered the .tag file contents corresponding to that tag is called to get the html text and all that text is printed out in the jsp page right (without the jspWriter "out"). How does the browser know when to stop? like doEndTag() function? are these functions implicitly called?
regards.