Raja,
Loading a DRL includes parsing source code, target code generation
and compilation among other things. It's the heaviest part of the cycle,
but it improves runtime performance.
We are working on making it faster, but for now, what I can suggest
is, for cases where it is possible, to compile the rulebase once and
cache it to use throughout the application. Also, you can serialize the
compiled rulebase and deserialize when needed.
Serialization/deserialization is much lighter than compilation.
Also, in trunk, I implemented a simple ant task to allow
compilation/serialization of a rulebase as part of the build process of
your application. You may want to take a look.
[]s
Edson
[EMAIL PROTECTED] wrote:
I have the following code to add a drl to the package.It takes 2-3
secs to load even a small drl file with one rule.
Appreciate if anyone in the group throw some light on this.
PackageBuilder builder = new PackageBuilder();
Date startTime = new Date();
SimpleDateFormat formatter = new SimpleDateFormat("H:mm:ss:SSS");
String datenewformat = formatter.format(startTime);
System.out.println("Before Add Package from DRL-->" + datenewformat);
builder.addPackageFromDrl( new InputStreamReader(
getClass().getResourceAsStream( "/test.drl" )));
Date endTime = new Date();
SimpleDateFormat formatter1 = new SimpleDateFormat("H:mm:ss:SSS");
String datenewformat1 = formatter1.format(endTime);
System.out.println("After Add Package from DRL-->" + datenewformat1);
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Edson Tirelli
Software Engineer - JBoss Rules Core Developer
Office: +55 11 3124-6000
Mobile: +55 11 9218-4151
JBoss, a division of Red Hat @ www.jboss.com
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