Re: [rules-users] Guvnor Declarative Model
Exactly what I was thinking about, but I wanted to check first if I could reuse drools' bytecode generation instead of adding another thirdparty to the mix (one of my previous questions actually). I do want to avoid messing with custom classloaders as much as I can :-) From what I've seen, it doesn't seem to be easily reusable though Date: Mon, 10 Sep 2012 17:33:43 +0200 From: vincent.legen...@eurodecision.com To: rules-users@lists.jboss.org Subject: Re: [rules-users] Guvnor Declarative Model Ok, not simple indeed ... And why can't you generate a POJO instead of declarative fact ? De: Jean-Paul Shemali jshem...@hotmail.com À: rules-users@lists.jboss.org Envoyé: Lundi 10 Septembre 2012 10:06:43 Objet: Re: [rules-users] Guvnor Declarative Model Simply by not writing them in drools, but in another (proprietary) language, which in turn gets translated to drools at runtime. Of course there's nothing really simple about the translation and how the actual facts get generated Date: Sat, 8 Sep 2012 23:53:47 +0200 From: vincent.legen...@eurodecision.com To: rules-users@lists.jboss.org Subject: Re: [rules-users] Guvnor Declarative Model How can you declare your facts (or rules) if you don't know beforehand the structure of the POJO to use ? ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Guvnor Declarative Model
It may be faster to get the drools source code and change the generation by yourself. And post the new code to Edson ... - Mail original - De: Jean-Paul Shemali jshem...@hotmail.com À: rules-users@lists.jboss.org Envoyé: Mardi 11 Septembre 2012 08:29:08 Objet: Re: [rules-users] Guvnor Declarative Model Exactly what I was thinking about, but I wanted to check first if I could reuse drools' bytecode generation instead of adding another thirdparty to the mix (one of my previous questions actually). I do want to avoid messing with custom classloaders as much as I can :-) From what I've seen, it doesn't seem to be easily reusable though Date: Mon, 10 Sep 2012 17:33:43 +0200 From: vincent.legen...@eurodecision.com To: rules-users@lists.jboss.org Subject: Re: [rules-users] Guvnor Declarative Model Ok, not simple indeed ... And why can't you generate a POJO instead of declarative fact ? De: Jean-Paul Shemali jshem...@hotmail.com À: rules-users@lists.jboss.org Envoyé: Lundi 10 Septembre 2012 10:06:43 Objet: Re: [rules-users] Guvnor Declarative Model Simply by not writing them in drools, but in another (proprietary) language, which in turn gets translated to drools at runtime. Of course there's nothing really simple about the translation and how the actual facts get generated Date: Sat, 8 Sep 2012 23:53:47 +0200 From: vincent.legen...@eurodecision.com To: rules-users@lists.jboss.org Subject: Re: [rules-users] Guvnor Declarative Model How can you declare your facts (or rules) if you don't know beforehand the structure of the POJO to use ? ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Guvnor Declarative Model
Simply by not writing them in drools, but in another (proprietary) language, which in turn gets translated to drools at runtime. Of course there's nothing really simple about the translation and how the actual facts get generated Date: Sat, 8 Sep 2012 23:53:47 +0200 From: vincent.legen...@eurodecision.com To: rules-users@lists.jboss.org Subject: Re: [rules-users] Guvnor Declarative Model How can you declare your facts (or rules) if you don't know beforehand the structure of the POJO to use ? ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Guvnor Declarative Model
Ok, not simple indeed ... And why can't you generate a POJO instead of declarative fact ? - Mail original - De: Jean-Paul Shemali jshem...@hotmail.com À: rules-users@lists.jboss.org Envoyé: Lundi 10 Septembre 2012 10:06:43 Objet: Re: [rules-users] Guvnor Declarative Model Simply by not writing them in drools, but in another (proprietary) language, which in turn gets translated to drools at runtime. Of course there's nothing really simple about the translation and how the actual facts get generated Date: Sat, 8 Sep 2012 23:53:47 +0200 From: vincent.legen...@eurodecision.com To: rules-users@lists.jboss.org Subject: Re: [rules-users] Guvnor Declarative Model How can you declare your facts (or rules) if you don't know beforehand the structure of the POJO to use ? ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Guvnor Declarative Model
How can you declare your facts (or rules) if you don't know beforehand the structure of the POJO to use ? ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Guvnor Declarative Model
Hi guys, I just stumbled into the same issue in 5.4.0.Final, I think this is caused by https://issues.jboss.org/browse/JBRULES-2652 When declaring a type, a constructor with all fields as parameters is generated automatically, but this causes in our case to hit a barrier of the Java language because the generated constructor has more than 255 parameters Anyone knows if this generation can be skipped (annotation or something else), maybe a safeguard not to generate the constructor when the limit is reached would be nice too? -- View this message in context: http://drools.46999.n3.nabble.com/Guvnor-Declarative-Model-tp4019419p4019637.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Guvnor Declarative Model
Ouch, more than 255 fields? As of 5.4.x there is no workaround, the engine always tries to generate the constructor. Can you please open a JIRA and we will fix this for the next release? Thank you, Edson On Fri, Sep 7, 2012 at 9:05 AM, JP Chemali jshem...@hotmail.com wrote: Hi guys, I just stumbled into the same issue in 5.4.0.Final, I think this is caused by https://issues.jboss.org/browse/JBRULES-2652 When declaring a type, a constructor with all fields as parameters is generated automatically, but this causes in our case to hit a barrier of the Java language because the generated constructor has more than 255 parameters Anyone knows if this generation can be skipped (annotation or something else), maybe a safeguard not to generate the constructor when the limit is reached would be nice too? -- View this message in context: http://drools.46999.n3.nabble.com/Guvnor-Declarative-Model-tp4019419p4019637.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- Edson Tirelli JBoss Drools Core Development JBoss by Red Hat @ www.jboss.com ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Guvnor Declarative Model
a workaround could be to use a java pojo, not a declared fact - Original Message - From: Edson Tirelli ed.tire...@gmail.com To: Rules Users List rules-users@lists.jboss.org Sent: Friday, September 7, 2012 3:43:04 PM Subject: Re: [rules-users] Guvnor Declarative Model Ouch, more than 255 fields? As of 5.4.x there is no workaround, the engine always tries to generate the constructor. Can you please open a JIRA and we will fix this for the next release? Thank you, Edson On Fri, Sep 7, 2012 at 9:05 AM, JP Chemali jshem...@hotmail.com wrote: Hi guys, I just stumbled into the same issue in 5.4.0.Final, I think this is caused by https://issues.jboss.org/browse/JBRULES-2652 When declaring a type, a constructor with all fields as parameters is generated automatically, but this causes in our case to hit a barrier of the Java language because the generated constructor has more than 255 parameters Anyone knows if this generation can be skipped (annotation or something else), maybe a safeguard not to generate the constructor when the limit is reached would be nice too? -- View this message in context: http://drools.46999.n3.nabble.com/Guvnor-Declarative-Model-tp4019419p4019637.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- Edson Tirelli JBoss Drools Core Development JBoss by Red Hat @ www.jboss.com ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Guvnor Declarative Model
Thanks for quick answers guys! I just realized the original thread never made it trough to the list (the user didn't register probably) the original poster had the same issue on Guvnor, hence the title. Edson I've opened https://issues.jboss.org/browse/JBRULES-3621 for this Unfortunately, I don't have any workaround for this, as I don't know beforehand the structure of the POJO to use (in my use case, there is an additional layer on top of drools, and I don't know the facts). Although I'm not 100% blocked by this, is it possible to reuse the drools code generator manually? That way I could workaround it by generating the class myself and skip the constructor generation? Date: Fri, 7 Sep 2012 15:45:02 +0200 From: vincent.legen...@eurodecision.com To: rules-users@lists.jboss.org Subject: Re: [rules-users] Guvnor Declarative Model a workaround could be to use a java pojo, not a declared fact From: Edson Tirelli ed.tire...@gmail.com To: Rules Users List rules-users@lists.jboss.org Sent: Friday, September 7, 2012 3:43:04 PM Subject: Re: [rules-users] Guvnor Declarative Model Ouch, more than 255 fields? As of 5.4.x there is no workaround, the engine always tries to generate the constructor. Can you please open a JIRA and we will fix this for the next release? Thank you, Edson On Fri, Sep 7, 2012 at 9:05 AM, JP Chemali jshem...@hotmail.com wrote: Hi guys, I just stumbled into the same issue in 5.4.0.Final, I think this is caused by https://issues.jboss.org/browse/JBRULES-2652 When declaring a type, a constructor with all fields as parameters is generated automatically, but this causes in our case to hit a barrier of the Java language because the generated constructor has more than 255 parameters Anyone knows if this generation can be skipped (annotation or something else), maybe a safeguard not to generate the constructor when the limit is reached would be nice too? -- View this message in context: http://drools.46999.n3.nabble.com/Guvnor-Declarative-Model-tp4019419p4019637.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- Edson Tirelli JBoss Drools Core Development JBoss by Red Hat @ www.jboss.com ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] Guvnor declarative model and ASM deserialization
In my application I am using the following flow: 1. I am using Guvnor to allow customer to define business event structure through the Declarative Model feature. 2. After defining the model, customers write rules and package them into a snapshot where my event-driven-application-server can see. 3. My server load successfully the customer packages (couple hundreds of them). 4. Customer uses HornetQ client to produce events that respects the model that has been created using Guvnor. 5. I have HornetQ listeners in my application that listens to new events. 6. HornetQ listeners tries to deserialize the message bytes to an event object to insert it to the customer ksession The problem is that my server classloader has no idea about the model, so I use ASM to inject the class definition when ClassNotFoundException is thrown however this was not enough as serialVersionUID of client side object is going to be different from the ASM default injected one. I know some of you might say why cant I use the same static final serialVersionUID in the client side as well as in the server side - the answer is I want to give control to customers to define whatever business model they want using Guvnor. Using jar file model will not give freedom to business users that Guvnor provide. I am wondering if some of you were facing the same issue while using the fusion message queue streaming gate? I am thinking to extend the Java ObjectInputStream and implement my own deserialization. Could Drools ksession accept bytes along side with objects (I mean in the future) - Something like; ksession.insert(bytes) Any ideas? Abdel ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
