[rules-users] RE: RE: rules precompilation

[ekke]

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 at lists.jboss.org
> [mailto:rules-users-bounces at lists.jboss.org] On Behalf Of ekke
> Sent: Wednesday, October 03, 2007 4:08 PM
> To: rules-users at 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 at lists.jboss.org
>> [mailto:rules-users-bounces at 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 at lists.jboss.org
>> [mailto:rules-users-bounces at 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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