dsto.dfc.net.streams.object
Class Handler

java.lang.Object
  java.net.URLStreamHandler
      dsto.dfc.net.streams.object.Handler

public class Handler
extends URLStreamHandler

Handler for URL's using the "object:" protocol. The object protocol allows Java objects to be referenced by their class name eg "object:java.lang.String". If the class is a singleton (ie implements the Singleton interface), the singleton instance is returned as the result of URL.getContent(), otherwise a new instance created using the default constructor is returned.

Version:

$Revision$

See Also:

ObjectURLConnection

Constructor Summary

Handler()

Method Summary

static Handler	getInstance() Get the singleton instance of this class.
URLConnection	openConnection(URL url)
static void	register() Register this class as the handler for the "resource:" URL protocol.

Methods inherited from class java.net.URLStreamHandler

equals, getDefaultPort, getHostAddress, hashCode, hostsEqual, openConnection, parseURL, sameFile, setURL, setURL, toExternalForm

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Handler

public Handler()

Method Detail

getInstance

public static Handler getInstance()

Get the singleton instance of this class. Other instances may be safely created as well.

register

public static void register()
                     throws UnsupportedOperationException

Register this class as the handler for the "resource:" URL protocol. May be called more than once.

Throws:

UnsupportedOperationException

openConnection

public URLConnection openConnection(URL url)
                             throws IOException

Specified by:

openConnection in class URLStreamHandler

Throws:

IOException