April 2012 - rules-dev - Jboss List Archives

Re: [rules-dev] [rules-users] Trying to compare variables of two objects, not working. (compiles, but not desired result)

by Wolfgang Laun

5.3.0 and 5.4.0.Beta2: Comparing int and Integer fails unless the traditional (up to 5.1.1) "return value" construct - parentheses around the expression - is used: lineItemId == ($lineItem.getID()) // OK lineItemId == ($id) // OK with $id bound as LineItem( $id: ID > 0 ) This would work if ID were public: lineItemId == ($lineItem.ID) It's best to stay as close as possible to the Java Beans conventions. Using an upper case initial in field names wasn't accepted by the Drools compiler prior to 5.3.0. On 12/04/2012, Vincent LEGENDRE <vincent.legendre(a)eurodecision.com> wrote: > Or may be something more basic : drools does not 'interpret' Integer types > as int, so == is testing object references ... > This explanation explain why it compiles but not working, whereas if my > previous ideas are right, it should raise a compilation error ... > > Try using 'int', or use Integer.valueOf(1) (that will return a shared > instance of Integer). > But this is still very strange as doing the same test in java works (Integer > is treated as a int, and == is testing values ...) > > > ----- Mail original ----- > De: "Vincent LEGENDRE" <vincent.legendre(a)eurodecision.com> > À: "Rules Users List" <rules-users(a)lists.jboss.org> > Envoyé: Jeudi 12 Avril 2012 20:44:41 > Objet: Re: [rules-users] Trying to compare variables of two objects, not > working. (compiles, but not desired result) > > I think (not sure) that the problem comes from the right part of your test : > $lineItem.ID > Try with $lineItem.getID(), or use 'dialect "mvel"' as rule property > > You can also bind the id in LineItem and test it in the next pattern : > > rule "Test" > when > $lineItem : LineItem( $lineID : ID > 0 ) > $trans : TransactionItem( ID > 0, AccountName != null, LineItemID == > $lineID) > $amount : AccountingItem( TransactionID > 0, CalculatedCommission > > 0.0 ) > then > System.out.println( $amount.getCalculatedCommission() + " " + > $lineItem.getID() ); > end > > > But this is very strange. To me it should work ... > > What is not usual too is your use of "_" before member attributes (let me > guess, you did a lot of C++ ?), which is not the java POJO standards. And > may be that drools relies on fields names too ... > And inside your tests, instead of "LineItemID" you should use "lineItemID" > (with a lower case letter first, like the name your internal attribute > should have, following the common java conventions). > > But if all of this is a problem, the symptom should be a compilation error > .... so it is still strange ... > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users >

13 years, 6 months

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unit test names

by Mark Proctor

Please don't use the JIRA names as test method names, i.e.: public final void testJBRULES3416() throws DroolsParserException, IOException { Later on that means nothing. Give the method a real name and put the JIRA in a commit line. Thanks Mark

13 years, 6 months

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Return type

by Maganti Suryanarayana murthy

Hello, i have written a service class which acts on DAO but before acting on DAO layer it is calling rule security.drl file. I want to capture the message from the rule file and according to some condition of failure of success i have to call DAO class. I am not knowing how to write up a condition before calling DAO. If not understood clearly i can provide the coding Regards Surya

13 years, 6 months

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Rule to service

by suryain4u

Hi all, In my service class, before saving the data i called the rule file. I want the result of rule file to be stored as an message which displays to output VO. I have used one simple technique and its as follows. But i want to use more simpler than this. Can i use hashmap to store error messages or warnings etc., If so how to do it. The basic thing is that i want to get knowledge base into service class so that i can get FactHandle and can be used for update and insert. Regards Surya -- View this message in context: http://drools.46999.n3.nabble.com/Rule-to-service-tp3905484p3905484.html Sent from the Drools: Developer (committer) mailing list mailing list archive at Nabble.com.

13 years, 6 months

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Bugzilla: When you're not going to do something

by Michael Anstis

Hi, Kris and I had a chat the other day about what best to do in Bugzilla when an item is not to be worked on. I chatted with Lucas P and, whilst a process is not well defined, we felt the following best (and as assumed already by Kris):- 1) When you need answer from someone, use the needinfo flag. 2) When the bug isn't being fixed for the release, put it to NEW (when you're not going to work on it) or ASSIGNED (when you are) Pretty obvious, but surprisingly different to what I (and possibly others) was doing. With kind regards, Mike

13 years, 6 months

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GSOC Just 2 days left

by Mark Proctor

If you want to suggest a project, or claim a project, you have just 2 days left to do so - HURRY UP!!! https://community.jboss.org/wiki/GSoC12Ideas Mark

13 years, 7 months

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5.2.x: HOWTO - De-serialize RuleFlowProcess

by Michael Anstis

Hi, Please see https://bugzilla.redhat.com/show_bug.cgi?id=724409. This is reported for BRMS 5.3. The failure to update the package name is caused by (I presume) changes to the de-serialization of RuleFlow files. Drools Guvnor includes the following in org.drools.guvnor.server.contenthandler.RuleFlowHandler:- RuleFlowProcess process = null; InputStreamReader reader = new InputStreamReader( is ); PackageBuilderConfiguration configuration = new PackageBuilderConfiguration(); XmlProcessReader xmlReader = new XmlProcessReader( configuration.getSemanticModules(), getClassLoader() ); RuleFlowProcess process = (RuleFlowProcess) xmlReader.read( reader ); \\<---- CCE The problem is that XmlProcessReader returns a List<Process> and hence Guvnor gets a (swallowed) ClassCastException. I could simply change this to use a List<Process> however I note that the XmlProcessReader fails to parse the RuleFlow file attached to the BZ issue (the processes list is null after parsing). Furthermore there will (possibly) be an abundance of Drools Guvnor repository files that contain legacy RuleFlowProcess XML that Guvnor will need to continue to handle. Are RuleFlowProcess deprecated in favor of Process? How can I convert a RuleFlowProcess into a Process (and back again)? How can I de-serialize the BZ RuleFlow XML into a RuleFlowProcess? Whilst the BZ is for BRMS5.3 the problematic code is also in Drools Guvnor 5.4.0.CR1 and master branch (and jBPM 5.3.0-SNAPSHOT) so is not set to resolve itself. With kind regards, Mike

13 years, 7 months

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Guvnor repository migration

by Michael Anstis

Hi, I'm looking into https://bugzilla.redhat.com/show_bug.cgi?id=747299 Various people have done various things in the past, and I'm trying to gather this information so I can consolidate into a supported migration tool. So.... if you've had any involvement with this type of thing in the past could you please send me some details etc. Cheers, Mike

13 years, 7 months

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5.4.x has been branched

by Toni Rikkola

The branches for 5.4.0 CR and final releases has been created. Important bug fixes can still be cherry-picked in. The master branch is now free for any risky commits. Toni Rikkola

13 years, 7 months

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rules-dev April 2012