[rules-users] Drools 6 and dynamic update

[Mark Proctor]

If your rules change, then your version changes, and a new jar needs to be published.

Separate your rules, from your application and allow them to be dynamically updated.

Mark


On 28 Nov 2013, at 14:52, Nicolas Héron <nicolas.heron.java at gmail.com> wrote:

> Hi Mark,
> thanks for you answer.
> When you say deploy, I guess it is in the worbench's repository ?
> Now I do not want to compile or whatever.
> My application is running and while running, we want it to load new set of rules.
> How is the KieContainer aware of the workbench address or stuff like that ?
> I fully understand how all this work when redeploying a new version of my app and the drools package build by the drools-wb is seen as a maven dependency.
> But in my use case, I do not see how it works. 
> I think I only miss this "Ensure the JAR is in the KieRepository, or available to maven if using kie-ci"
> What is ensure ?
> Sorry
> Nicolas
> 
> 
> 
> 2013/11/28 Mark Proctor [via Drools] <[hidden email]>
> As per previous email: 
> 
> 1) Create your original project with rules, build and deploy the jar. 
> 2) Load the JAR to create a KieContainer. 
> 3) add or change rules. Change the maven version, build and deploy the jar. 
> 4) Ensure the JAR is in the KieRepository, or available to maven if using kie-ci, and call KieContainer.updateToVersion( ReleaseId). 
> 
> This will ensure your KieContainer is updated, and all existing stateful sessions will be incrementally updated too. Assuming no bugs :) 
> 
> On a side note, on master, there is a change to ensure that the Maven syntax for scanNow (with using the KieScanner) is obeyed. see 
> https://issues.jboss.org/browse/DROOLS-356
> 
> Mark 
> 
> On 28 Nov 2013, at 08:03, Nicolas Héron <[hidden email]> wrote: 
> 
> > Hi All, 
> > In previous Drools version (5.3, 5.4, 55 and 5.6RC1), it was possible to dynamically  update the package content  from Guvnor. 
> > The use case was : 
> > 1) Some rules are created/updated/deleted on Guvnor 
> > 2) A new snapshot is built 
> > 3) The drools runtime is notified and reload a new knowledgeBase from this new snapshot. (For this we developed some code to do that). No need to redeploy a new application. No need for IT people to be involved. 
> > 4) It was possible to see the content of each snapshot and compare the content of different snapshot. 
> > Now in Version 6 : 
> > Step 1 : no change 
> > Step 2 : as all in Maven => We build a new maven build an increment the version number 
> > Step 3 : is is possible to do that ? How do I set in all that the new Drools-wb maven repo ? 
> > Step 4 : how can I do that from the UI ? 
> > 
> > 
> > Thanks in advance 
> > Nicolas Héron
> > _______________________________________________ 
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> 
> 
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