Java Web Services in a Nutshell

public abstract class GenericHandler implements javax.xml.rpc.handler.Handler { // Protected Constructors protected GenericHandler( ); // Methods Implementing Handler public void destroy( ); // empty public abstract javax.xml.namespace.QName[ ] getHeaders( ); public boolean handleFault( MessageContext context ); // constant public boolean handleRequest( MessageContext context ); // constant public boolean handleResponse( MessageContext context ); // constant public void init( HandlerInfo config ); // empty }

GenericHandler is a convenience class that can optionally be used as a base class for message handlers. MessageHandler provides default implementations of all of the methods of the Handler interface apart from getHeaders( ) , which must be provided by subclasses. The default implementations do the following:

• The handleRequest( ) , handleResponse( ) , and handleFault( ) methods all return true, indicating the processing of the message should continue.

• The init( ) and destroy( ) methods do nothing.