[jboss-dev-forums] [Design of JBossXB] - DtdAwareContentHandler to support SAX2 LexicalHandler events

[scott.stark@jboss.org]

The only way I can get the version for ejb2.x descriptors is to get the doctype. I hacked in some support for this by adding an extended ContentHandler that supports the startDTD/endDTD from the SAX2 LexicalHandler:


  |    interface DtdAwareContentHandler extends ContentHandler
  |    {
  |       public void startDTD(String name, String publicId, String systemId);
  |       public void endDTD();
  |    }
  | 

The DelegatingContentHandler supports this, and the ObjectModelBuilder and DelegatingObjectModelFactory have been updated to pass this even on based on reflection of the type ObjectModelFactory:


  | public class BookObjectFactory
  |    implements ObjectModelFactory
  | {
  |    // ObjectModelFactory implementation
  | 
  |    public void startDTD(String name, String publicId, String systemId)
  |    {
  |       // Get version info from publicId...
  |    }
  | 



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