How to get parent of a custom component? - jsf-2

Question

I have a custom container component, that I want to use like this:
<p:a>A
<p:a>B</p:a>
</p:a>
That should generate this markup:
<div>A
<div>B</div>
</div>
Code for the component is below.
public class TagA extends TagHandler {
Logger logger = Logger.getLogger(getClass().getName());
public TagA(TagConfig config) {
super(config);
}
public void apply(FaceletContext ctx, UIComponent parent)
throws IOException {
UIComponentBase c = new UIComponentBase() {
public void encodeBegin(FacesContext ctx) throws IOException {
//getParent() always returns UIViewRot
logger.info("Parent is: " + getParent().getClass().getName());
ResponseWriter w = ctx.getResponseWriter();
w.write("<div>");
super.encodeBegin(ctx);
}
public void encodeEnd(FacesContext ctx) throws IOException {
ResponseWriter w = ctx.getResponseWriter();
w.write("</div>");
super.encodeEnd(ctx);
}
// abstract method in base, must override
public String getFamily() {
return "com.mobiarch.nf";
}
};
parent.getChildren().add(c);
nextHandler.apply(ctx, parent);
}
}
Unfortunately, this is rendering the following markup:
<div></div>A
<div></div>B

Answer 1

For others in a similar situation, just develop the component and not the tag.
#FacesComponent("my.ComponentA")
public class ComponentA extends UIComponentBase {
Logger logger = Logger.getLogger(getClass().getName());
public String getFamily() {
return "my.custom.component";
}
public void encodeBegin(FacesContext ctx) throws IOException {
super.encodeBegin(ctx);
logger.info("Component parent is: " + getParent().getClass().getName());
ResponseWriter w = ctx.getResponseWriter();
w.write("<div>");
}
public void encodeEnd(FacesContext ctx) throws IOException {
super.encodeEnd(ctx);
ResponseWriter w = ctx.getResponseWriter();
w.write("</div>");
}
}
Register it in your ??.taglib.xml
<tag>
<tag-name>a</tag-name>
<component>
<component-type>my.ComponentA</component-type>
</component>
</tag>