Java Reference
In-Depth Information
The AS 7 filesystem
The difference between standalone and domain reflects in the filesystem of the ap-
plication server, as shown in the following diagram:
As you can see, the AS 7 filesystem is divided into two main parts: the first one is
pertinent to a standalone server mode and the other is dedicated to a domain server
mode. Common to both server modes is the
modules
directory, which is the heart of
the application server.
JBoss AS 7 is based on the
JBoss Modules
project, which provides an implementa-
tion of a modular (non-hierarchical) class loading and execution environment for Java.
In other words, rather than a single class loader that loads all JARs into a flat class
path, each library becomes a module, which only links against the exact modules it
depends on and nothing more. It implements a thread-safe, fast, and highly concur-
rent delegating class loader model, coupled with an extensible module resolution sys-
tem, which combine to form a unique, simple, and powerful system for application ex-
ecution and distribution.
The following table details the content of each folder contained at the root of
JBOSS_HOME
:
