searching for a rule engine that compiles rules, no reflection

[NOBODY]

Hi,

Does anyone have heard of rules engines (could be really basic ones) that
generates byte code to perform the evaluations instead of
using reflection and interpretation?

I have searched a while, but the docs are always about features, not so
much implementations.

Thanks.

 

[Roedy Green]

Does anyone have heard of rules engines (could be really basic ones) that
generates byte code to perform the evaluations instead of
using reflection and interpretatio

See http://mindprod.com/jgloss/rules.html
for a long list of rules engines. I don't know which might work that
way.

 

[Koos Pol]

See http://mindprod.com/jgloss/rules.html
for a long list of rules engines. I don't know which might work that
way.

Not Found
The requested URL /jgloss/rules.html was not found on this server.
Apache/2.0.55 (NETWARE) mod_perl/1.99_12 Perl/v5.8.4 Server at mindprod.com
Port 80


Koos

 

[Roedy Green]

Not Found

try http://mindprod.com/jgloss/rule.html

Whever I screw up, just look up the word in the index. It will
usually be a typo, a pluralisation error or part of speech.

see http://mindprod.com/jgloss/jgloss.html

 

[NOBODY]

try http://mindprod.com/jgloss/rule.html


After a lot of browsing, I hit something even better (for me) than rules
engine:

BCEL, Javassist, and Janino.

BCEL is a byte code engineering library.

Javassist and janino can create/augment classes from standard sourcecode
snippets.

All very powerful to translate user made expressions into fullspeed java
code. Seem a branch of 'Drools' (the 'Groovy' project) is using one of
these.

There is no mention of security manager constraints, so watch out.

Have fun!