Java Server Pages (JSP) tutorials and examples.
The Java Server Pages container invokes the tag handler object in order to evaluate custom tags that are referened by other tags while JSP page is being executed. The Java Server Pages implementation class calls the tag handler methods at different phases of tag evaluation.
The Java Server Pages invokes the doStartTag method handler so that an appropriate method handler is initialized when ever a start tag is encountered of a custom tag. The Java Server Pages invokes the doEndTag