Invoking getParent() from JSP tags

Question

Hi,
I am writing a JSP tag that may only be invoke within a specific enclosing tag and I would like to invoke getParent() to get a reference to my enclosing tag but I can't seem to find out how to do this under JSP tag files. Any ideas?
Gili

Answer 1

one way is to set the parent tag as an attribute on the pageContext when ur processing the parent tag.
example:
suppose there is a parent tag and child tag nested in it......
ParentTag.java
public ParentTag() {
   public int doStartTag() throws JspException {
     // set the parent as a page attribute - for the nested child tag ...
     pageContext.setAttribute("someKey", this);
    return EVAL_BODY_BUFFERED;
ChildOfParentTag.java
public ChildOfParentTag() {
  public int doEndTag() throws JspException {
        // Get the parent tag from the page context that was set previously         
    ParentTag parent = (ParentTag) pageContext.getAttribute("someKey");
}reg,
sien..