Render the start tag for an element. The element will render the tag and all of it's attributes into a InternalStringBuilder.
@param sb A InternalStringBuilder where the element start tag is appended.
@param renderState The state assocated with the element.
The doStartTag method assumes that parent have been set. It also assumes that any properties exposed as attributes have been set too. When this method is invoked, the body has not yet been evaluated.
@return EVAL_BODY or SKIP_BODY.
Handles the start tag for a specific tag type. Generates the appropriate HTML and adds it to the associated PrintWriter. Also adds any necessary FormSubmissionControllerActions to the FormSubmissionController associated with the session. Returns whether or not to handle the body also. (True = Yes)
@param session the current session
@param out the PrintWriter to append generated HTML to
@param parent the parent node of the node in the XML associated with this tag
@param node the node in the XML associated with this tag
@return true/false whether to handle the body
Invokes the base class {@link AbstractAuthorizeTag#authorize()} method todecide if the body of the tag should be skipped or not.
@return {@link Tag#SKIP_BODY} or {@link Tag#EVAL_BODY_INCLUDE}
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