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| <p> |
| This package contains interfaces to SAX2 facilities that |
| conformant SAX drivers won't necessarily support. |
| |
| <p>See <a href='http://www.saxproject.org'>http://www.saxproject.org</a> |
| for more information about SAX.</p> |
| |
| <p> This package is independent of the SAX2 core, though the functionality |
| exposed generally needs to be implemented within a parser core. |
| That independence has several consequences:</p> |
| |
| <ul> |
| |
| <li>SAX2 drivers are <em>not</em> required to recognize these handlers. |
| </li> |
| |
| <li>You cannot assume that the class files will be present in every SAX2 |
| installation.</li> |
| |
| <li>This package may be updated independently of SAX2 (i.e. new |
| handlers and classes may be added without updating SAX2 itself).</li> |
| |
| <li>The new handlers are not implemented by the SAX2 |
| <code>org.xml.sax.helpers.DefaultHandler</code> or |
| <code>org.xml.sax.helpers.XMLFilterImpl</code> classes. |
| You can subclass these if you need such behavior, or |
| use the helper classes found here.</li> |
| |
| <li>The handlers need to be registered differently than core SAX2 |
| handlers.</li> |
| |
| </ul> |
| |
| <p>This package, SAX2-ext, is a standardized extension to SAX2. It is |
| designed both to allow SAX parsers to pass certain types of information |
| to applications, and to serve as a simple model for other SAX2 parser |
| extension packages. Not all such extension packages should need to |
| be recognized directly by parsers, however. |
| As an example, most validation systems can be cleanly layered on top |
| of parsers supporting the standardized SAX2 interfaces. </p> |
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