6.
Embedding Jess in a Java Application
6.1. Using the class jess.Main
The class jess.Main provides not only the Jess command-line
interface, but also the backbone of the example graphical interfaces
(jess.Console and jess.ConsoleApplet) as well. You
can reuse jess.Main from your own applications, or (if you
have a source distribution) you can simply use it as an example of
what an application embedding Jess can look like.
jess.Main does a number of things that a reasonable Jess
application might do:
- It (optionally) reads an entire file of Jess code directly, using
the jess.Jesp parser class.
- It reads and executes user input in a loop.
6.2. Manipulating Jess in other ways
Note that each individual jess.Rete object represents an
independent reasoning engine. A single program can then include
several independent engines.
Jess can be used in a multithreaded environment. The
jess.Rete class internally synchronizes itself using several
synchronization locks. The most important lock is a global lock on all
rule LHSs: only one assert or retract may be processing in a given
jess.Rete object at a time. This restriction is likely to be
relaxed in the future.
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