Allow an application to register a content event handler.
<p>If the application does not register a content handler, all content events reported by the SAX parser will be silently ignored.</p>
<p>Applications may register a new or different handler in the middle of a parse, and the SAX parser must begin using the new handler immediately.</p>
@param handler The content handler. @see #getContentHandler
See Implementation
Allow an application to register a content event handler.
<p>If the application does not register a content handler, all content events reported by the SAX parser will be silently ignored.</p>
<p>Applications may register a new or different handler in the middle of a parse, and the SAX parser must begin using the new handler immediately.</p>
@param handler The content handler. @see #getContentHandler