January 2012 - jboss-jira - Jboss List Archives

[JBoss JIRA] Created: (JBRULES-3070) Incorrect relational operator usage accepted by compiler

by Wolfgang Laun (JIRA)

Incorrect relational operator usage accepted by compiler -------------------------------------------------------- Key: JBRULES-3070 URL: https://issues.jboss.org/browse/JBRULES-3070 Project: Drools Issue Type: Bug Security Level: Public (Everyone can see) Components: drools-compiler (expert) Affects Versions: 5.2.0.CR1 Reporter: Wolfgang Laun Assignee: Mark Proctor Fix For: 5.2.0 Given class Person { int age; ... } the following pattern can be written Person( $name: name, age > 20 > 50 ) And the pattern matches all Person facts with an age > 50. a) This should cause an error: a boolean (age > 20) cannot be compared with an integer (50) b) The result implies that some strange interpretation is in effect. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 2 months

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[JBoss JIRA] Created: (JBRULES-3059) declare: inconsistent behaviour w.r.t. field redefinition

by Wolfgang Laun (JIRA)

declare: inconsistent behaviour w.r.t. field redefinition --------------------------------------------------------- Key: JBRULES-3059 URL: https://issues.jboss.org/browse/JBRULES-3059 Project: Drools Issue Type: Bug Security Level: Public (Everyone can see) Components: drools-compiler (expert) Affects Versions: 5.2.0.CR1 Reporter: Wolfgang Laun Assignee: Mark Proctor Fix For: 5.2.0 import Person declare Person name : String = "Joe" @key # here only @key is recognized; the initialization is not done end declare Employee extends Person custno : int @key name : String = "Joe" @key # here @key and initialization are recognized end If it cannot be honoured, the initialization should cause an error. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 2 months

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[JBoss JIRA] Created: (JBRULES-3071) NPE in Pattern Builder (invalid unification usage)

by Wolfgang Laun (JIRA)

NPE in Pattern Builder (invalid unification usage) -------------------------------------------------- Key: JBRULES-3071 URL: https://issues.jboss.org/browse/JBRULES-3071 Project: Drools Issue Type: Bug Security Level: Public (Everyone can see) Components: drools-compiler (expert) Affects Versions: 5.2.0.CR1 Reporter: Wolfgang Laun Assignee: Mark Proctor Fix For: 5.2.0 class Person { String name; } $p1: Person( $name := name, age < 20 ) $p2: Person( $name; ) Exception in thread "main" java.lang.NullPointerException at org.drools.rule.builder.PatternBuilder.processPositional(PatternBuilder.java:372) at org.drools.rule.builder.PatternBuilder.processConstraintsAndBinds(PatternBuilder.java:341) at org.drools.rule.builder.PatternBuilder.build(PatternBuilder.java:262) at org.drools.rule.builder.PatternBuilder.build(PatternBuilder.java:120) at org.drools.rule.builder.GroupElementBuilder.build(GroupElementBuilder.java:65) at org.drools.rule.builder.RuleBuilder.build(RuleBuilder.java:81) at org.drools.compiler.PackageBuilder.addRule(PackageBuilder.java:1769) at org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:743) at org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:358) at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:536) at org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:28) -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 2 months

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[JBoss JIRA] Created: (JBRULES-3060) Very odd error message due to unknow class

by Wolfgang Laun (JIRA)

Very odd error message due to unknow class ------------------------------------------ Key: JBRULES-3060 URL: https://issues.jboss.org/browse/JBRULES-3060 Project: Drools Issue Type: Bug Security Level: Public (Everyone can see) Components: drools-compiler (expert) Affects Versions: 5.2.0.CR1 Reporter: Wolfgang Laun Assignee: Mark Proctor Fix For: 5.2.0 rule x when then X x = new Integer( 42 ); end without an import or declare for X causes: Unable to Analyse Expression X x = new Integer( 42 );: [Error: unknown class or illegal statement: org.mvel2.ParserContext@1e1be92] [Near : {... X x = new Integer( 42 ); ....}] ^ [Line: 1, Column: 7] Note: (1) org.mvel2.ParserContext! Note: (2) The line number is relative to "then", but you'll have to guess that! -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 2 months

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[JBoss JIRA] Created: (JBRULES-3058) initializations in declare not applied for non-default constructor

by Wolfgang Laun (JIRA)

initializations in declare not applied for non-default constructor ------------------------------------------------------------------ Key: JBRULES-3058 URL: https://issues.jboss.org/browse/JBRULES-3058 Project: Drools Issue Type: Bug Security Level: Public (Everyone can see) Components: drools-compiler (expert) Affects Versions: 5.2.0.CR1 Reporter: Wolfgang Laun Assignee: Mark Proctor Fix For: 5.2.0 declare Person name : String @key nick : String = "Joe" end It can be shown that after Person p = new Person(); assert "Joe".equals( p.getNick() ); However after Person p = new Person( "Smith" ); assert p.getNick() == null; -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 2 months

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[JBoss JIRA] Created: (JBRULES-3089) position of "dialect 'mvel'" affects function and/or rule parsing (NPE)

by Wolfgang Laun (JIRA)

position of "dialect 'mvel'" affects function and/or rule parsing (NPE) ----------------------------------------------------------------------- Key: JBRULES-3089 URL: https://issues.jboss.org/browse/JBRULES-3089 Project: Drools Issue Type: Bug Security Level: Public (Everyone can see) Components: drools-compiler (expert) Affects Versions: 5.2.0.CR1 Reporter: Wolfgang Laun Assignee: Mark Proctor Fix For: 5.2.0 The DRL shown below does not compile. Exchanging dialect and function fixes the problem, as does removing the dialect stmt. entirely. dialect "mvel" function boolean ping( String x ){ System.out.println( "ping " + x ); return true; } rule exa4 when eval( ping("A") ) then System.out.println( "Hello world!" ); end Unable to Analyse Expression ping("A"): [Error: unable to resolve method using strict-mode: java.lang.Object.ping(java.lang.String)] [Near : {... ping("A") ....}] ^ [Line: 1, Column: 1] : [Rule name='exa4'] Unable to build expression for 'eval':null 'ping("A")' : [Rule name='exa4'] java.lang.NullPointerException -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 2 months

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[JBoss JIRA] Created: (JBRULES-3085) Serializing a package for KnowledgeAgent monitoring requires use of "unstable" API

by Wolfgang Laun (JIRA)

Serializing a package for KnowledgeAgent monitoring requires use of "unstable" API ----------------------------------------------------------------------------------- Key: JBRULES-3085 URL: https://issues.jboss.org/browse/JBRULES-3085 Project: Drools Issue Type: Feature Request Security Level: Public (Everyone can see) Components: drools-core (expert) Affects Versions: 5.2.0.CR1 Reporter: Wolfgang Laun Assignee: Mark Proctor Fix For: 5.2.0 Serializing a compiled package seems a rational thing to do - after all, there is: <resource source="..." type="PKG" /> and it is recognized by the monitor. However, you can't simply serialize an org.drools.definition.KnowledgePackage as it is usually done by writing it to an ObjectOutputStream: deserialization in the KnowledgeAgent throws a CCE exception. To make it work, you must use a DroolsObjectOutputStream, which is nothing but a rename of ObjectOutputStream. So I have use DroolsObjectOutputStream, but it is not part of the public API. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 2 months

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[JBoss JIRA] Created: (JBRULES-3074) Null pointer at org.drools.time.impl.JDKTimerService.removeJob(JDKTimerService.java:103)

by Richard Ambridge (JIRA)

Null pointer at org.drools.time.impl.JDKTimerService.removeJob(JDKTimerService.java:103) ----------------------------------------------------------------------------------------- Key: JBRULES-3074 URL: https://issues.jboss.org/browse/JBRULES-3074 Project: Drools Issue Type: Bug Security Level: Public (Everyone can see) Components: drools-core Affects Versions: 5.1.1.FINAL Environment: Ubuntu Reporter: Richard Ambridge Assignee: Mark Proctor Priority: Blocker Attachments: DroolsRuleTest.java, Item.java, rule1.drl Using drools with time based rules and saliance, the saliance is not used when firing the rules This only happens when multiple objects update at the same time. e.g. Rule 1 is salience 1000 dialect "mvel" when $i : Item(val==10) Item(val==11, this after [0s, 1m] $i) Rule 2 is salience 1000 dialect "mvel" when $i : Item(val==10) not( Item(val==11, this after [0s,1m] $i)) Rule3 is salience 100 when $i : Item(val==11) Then we insert 3 items with val==10 Rule2 is activated 3 times... Then we insert an item with val==11 Note, with a val==10 and val==11 in the memory, Rule 1 will activate, and Rule 3 will activate However, Rule1 should fire first.. as its saliance is high For the first item it does, but then the Rule 3 fires before 2nd item does. Audit log is attached, but summary is Object inserted (1), Item: val==10 Activation created: Rule 2 (1) Object inserted (2), Item: val==10 Activation created: Rule 2 (2) Object inserted (3), Item: val==10 Activation created: Rule 2 (3) Object inserted (4), Item: val==11 Activation created: Rule 1 (1) Activation created: Rule 1 (2) Activation created: Rule 1 (3) Activation created: Rule 3 (4) Activation cancelled: Rule 2 (1) Activation cancelled: Rule 2 (2) Activation cancelled: Rule 2 (3) .. here we have 4 activations, 3 for Rule1 (saliance 1000), 1 for Rule3(saliance 100) Activation executed Rule 1 (1) Activation executed Rule 3 (4) //WRONG Activation cancelled: Rule 1 (2) Activation cancelled: Rule 1 (3) Activation created: Rule 2 (2) Activation created: Rule 2 (3) Note, this works fine in Drools 5.0 In Drools 5.2.0 CR1 a null pointer is thrown (another issue will be logged for that) -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 2 months

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[JBoss JIRA] Created: (JBRULES-3164) Serialization broken for Backward Chaining

by Mark Proctor (JIRA)

Serialization broken for Backward Chaining ------------------------------------------ Key: JBRULES-3164 URL: https://issues.jboss.org/browse/JBRULES-3164 Project: Drools Issue Type: Bug Security Level: Public (Everyone can see) Affects Versions: 5.2.0.Final Reporter: Mark Proctor Assignee: Mark Proctor Fix For: 5.3.0.Beta1 -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 2 months

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[JBoss JIRA] Created: (JBRULES-3165) Dynamic Rules broken for Backward Chaining

by Mark Proctor (JIRA)

Dynamic Rules broken for Backward Chaining ------------------------------------------ Key: JBRULES-3165 URL: https://issues.jboss.org/browse/JBRULES-3165 Project: Drools Issue Type: Bug Security Level: Public (Everyone can see) Affects Versions: 5.2.0.Final Reporter: Mark Proctor Assignee: Mark Proctor Fix For: 5.3.0.Beta1 -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 2 months

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jboss-jira January 2012