Ekke,

Thanks a lot! It worked just fine...

The other missing point is that after deserializing the PackageBuilder
should be buit as in your example :

	builder = new PackageBuilder((Package)ois.readObject());

and later on from that isnatcne should be retrieved the Package inctance
by doing:

	package = buider.getPackage();

as otherwise this code was failing:
	
	package = (Package)ois.readObject();  // FAILES, subsequent use
of package produces "class not found" exception when inserting objects.



Mark,

Think this should be documented somewhere in manual... under  IMPORTANT
section... by the way, IMHO that section should be more visible from
what is used currently in manual... - thin italic font, how about bold
red?

  

Thanks to all,

-Sergey
	


-----Original Message-----
From: rules-users-bounces@lists.jboss.org
[mailto:rules-users-bounces@lists.jboss.org] On Behalf Of ekke
Sent: Tuesday, October 09, 2007 2:35 PM
To: rules-users@lists.jboss.org
Subject: [rules-users] RE: RE: rules precompilation


Sergey,

of course Mark is right - you shouldn't use readExternal and the default
constructor.
this was my fault from an earlier mail.

please try something like this:

// EXPORT
...
FileOutputStream fos .....
...
ObjectOutputStream oos = null;
		try {
			oos = new ObjectOutputStream(fos);
			oos.writeObject(builder.getPackage());
			oos.close();
		} catch (final IOException e) {
			... your code....
		}
...

// IMPORT
FileInputStream fis...
...
ObjectInputStream ois = null;
		try {
			ois = new ObjectInputStream(fis);
			builder = new
PackageBuilder((Package)ois.readObject());
			ois.close();
		} catch (final IOException e) {
			...your code...;
		} catch (final ClassNotFoundException e) {
			...your code...;
		}

now your imported package should work like the exported

ekke


Manukyan, Sergey wrote:
  

Ekke,

Started using 4.0.2, but getting same error.

This is how I am loading the Package :

this.pkg = new Package();
this.pkg.readExternal(ois);

Does that look right to you?

-Sergey



-----Original Message-----
From: rules-users-bounces@lists.jboss.org
[mailto:rules-users-bounces@lists.jboss.org] On Behalf Of ekke
Sent: Wednesday, October 03, 2007 4:08 PM
To: rules-users@lists.jboss.org
Subject: [rules-users] RE: rules precompilation


sergey,

just tried it:
exported a package with rules as stream
(using the writeExternal() from Package)

then in another run I created new RuleBase, added new Package,
then import the rules into this empty Package (using the
    

readExternal()
  

from
Package)
then added some facts, execute the rules,

tested if all rules are there,
tested if the Facts are in workingMemory - all ok

(using snapshot 4.0.2, eclipse 3.3, osx 10.4.10)

ekke

Manukyan, Sergey wrote:
    

Ming, Ekke,

After deserialising the Package back - getting exception when
      

inserting
    

facts:

Exception thrown : java.lang.NoClassDefFoundError: XXXShadowProxy

XXX - is my class name

Any ideas?

-Sergey



-----Original Message-----
From: rules-users-bounces@lists.jboss.org
[mailto:rules-users-bounces@lists.jboss.org] On Behalf Of Jin, Ming
Sent: Wednesday, October 03, 2007 1:50 PM
To: Rules Users List
Subject: RE: [rules-users] rules precompilation

Sergey,

I am using precompiled rules.  Serializing instances of
org.drools.rule.Package works for me.

Thanks,
-Ming 

-----Original Message-----
From: rules-users-bounces@lists.jboss.org
[mailto:rules-users-bounces@lists.jboss.org] On Behalf Of Manukyan,
Sergey
Sent: Wednesday, October 03, 2007 12:29 PM
To: Rules Users List
Subject: [rules-users] rules precompilation


Folks,

Where can I find information on how to pre-compile rules in 4.0.1?

Thanks,

-Sergey


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