Java Reference
In-Depth Information
New features in JBoss AS 7
The seventh release of JBoss AS is quite different from all other server releases and,
as a matter of fact, has improved on several key points, especially where needed
most, that is, in the management area. Some of the most notable improvements in-
clude:
• The application server can now be part of a
Managed Domain
, which
provides the centralized management of multiple server instances and
physical hosts, or it can just be a Standalone Server that allows for a single
server instance.
• The Management
Web Console
and Management
Command Line Inter-
face
(
CLI
) are brand new interfaces for managing your domain or stan-
dalone AS instance. There is no longer any need to edit XML configuration
files manually. The Management CLI even offers a batch mode so that you
can script and automate management tasks.
• The class-loading mechanism has been made completely modular so that
modules are loaded and unloaded on demand. This provides performance
and security benefits as well as very fast startup and restart times.
• JBoss AS 7 starts and stops very quickly, which is especially beneficial to
developers. It uses fewer resources and is extremely efficient in its use of
system resources.
Behind the scenes, the new application server is designed around a brand new ker-
nel; this is now based on two main projects:
•
JBoss Modules
: This handles the class loading of resources in the con-
tainer. You can think of JBoss Modules as a thin bootstrap wrapper for ex-
ecuting an application in a modular environment.
•
Modular Service Container
(
MSC
): This provides a way to install, unin-
stall, and manage the services used by a container. MSC further enables
the injection of resources into services and dependency management
between services.
In the next section, we will describe all the required steps for installing and starting a
new application server.
