12.3.4. Remote Access to EJBs
220.127.116.11. About Remote Method Access
Supported Transport Types
- Socket / Secure Socket
- RMI / RMI over SSL
- HTTP / HTTPS
- Servlet / Secure Servlet
- Bisocket / Secure Bisocket
The Remoting system also provides data marshalling and unmarshalling services. Data marshalling refers to the ability to safely move data across network and platform boundaries, so that a separate system can perform work on it. The work is then sent back to the original system and behaves as though it were handled locally.
When you design a client application which uses Remoting, you direct your application to communicate with the server by configuring it to use a special type of resource locator called an
InvokerLocator, which is a simple String with a URL-type format. The server listens for requests for remote resources on a
connector, which is configured as part of the
remoting subsystem. The
connector hands the request off to a configured
ServerInvocationHandler implements a method
invoke(InvocationRequest), which knows how to handle the request.
JBoss Remoting Framework Layers
- The user interacts with the outer layer. On the client side, the outer layer is the
Clientclass, which sends invocation requests. On the server side, it is the InvocationHandler, which is implemented by the user and receives invocation requests.
- The transport is controlled by the invoker layer.
- The lowest layer contains the marshaller and unmarshaller, which convert data formats to wire formats.