Duplicate input tags generated

Question

Hello--
JSF appears to be generating two elements for
one startElement/endElement pair.
Using JSF 1.2/Tomcat 6.0/Eclipse 3.3.2
I am writing a simple custom tag: an input field, a button, and
an input field.
I have written three 'encode' helpers for my encodeBegin() method.
Here is relevant code:
public void encodeBegin(FacesContext context) throws IOException {
ResponseWriter rw = context.getResponseWriter();
String id = getClientId(context);
encodeInputField(rw, id);
encodeButton(rw, id);
encodeOutputField(rw, id);
private void encodeInputField(ResponseWriter rw, String id) throws IOException {
rw.startElement("input", this);
rw.writeAttribute("name", id+".in", null);
String value = (String) getAttributes().get("initialIn");
if (value != null) {
rw.writeAttribute("value", value, "value");
rw.endElement("input");
private void encodeButton(ResponseWriter rw, String id) throws IOException {
rw.startElement("input", this);
rw.writeAttribute("type", "submit", null);
rw.writeAttribute("name", id+".button", null);
rw.writeAttribute("value", "click", null);
rw.endElement("input");
private
void encodeOutputField(ResponseWriter rw, String id) throws IOException {
rw.startElement("input", this);
rw.writeAttribute("type", "text", null);
rw.writeAttribute("name", id, "clientId");
if (getValue() != null) {
rw.writeAttribute("value", getValue().toString(), "value");
rw.endElement("input");
The problem is that the last method, encodeOutputField, appears to
be invoked twice, ie, there is an extra <input> element generated
with exactly the same id. And, the page displays okay (with the
extra <input> element with NO complaints about duplicate id).
Here is generated HTML:
<td>
<input name="j_id_jsp_723507922_1:j_id_jsp_723507922_7.in" value="initial text" />
<input type="submit" name="j_id_jsp_723507922_1:j_id_jsp_723507922_7.button" value="click" />
<input type="text" name="j_id_jsp_723507922_1:j_id_jsp_723507922_7" value="initial text" />
<input type="text" name="j_id_jsp_723507922_1:j_id_jsp_723507922_7" value="initial text" /></td>
</tr>
What is up?

Answer 1

Hai
I am Getting some doubt from you answer , These three are your component you know , this component will not call default EncodeBegin() method , it will call those method Encodebegin() which you wrote . then how you are saying UIInput class generate automatically one <input> tag . if you think so, there should 6 component totally because in your form totally 3 component so your encode method will create 3 component and then default system encode method will create 3 component .
please explain me
thanks
Selvakumar