JBPM5 gateway constraint access to own Object attributes

[ous2k]

Hi all,

I 'm new in JBPM i'm trying access my object attribute in a gateway constraint  does any one know about.

i found this in JBPM5 samples but i don't sill how to use it

getProcessProperty("x")/myDocument/chapter1/text()="BlaBla"

[ous2k]

i still have the same gateway constaint  problem above the msg error, even i have added the package name like said in other post

org.drools.RuntimeDroolsException: invalid package name

          at org.jbpm.compiler.ProcessBuilderImpl.buildProcess(ProcessBuilderImpl.java:173)

          at org.jbpm.compiler.ProcessBuilderImpl.addProcessFromXml(ProcessBuilderImpl.java:252)

          at org.drools.compiler.PackageBuilder.addProcessFromXml(PackageBuilder.java:564)

          at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:608)

          at org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:37)

          at com.sample.MainTester.readKnowledgeBase(MainTester.java:49)

          at com.sample.MainTester.testEDPBM(MainTester.java:29)

          at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

          at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)

          at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

          at java.lang.reflect.Method.invoke(Method.java:601)

          at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)

          at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)

          at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)

          at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)

          at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76)

          at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)

          at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)

          at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)

          at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)

          at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)

          at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)

          at org.junit.runners.ParentRunner.run(ParentRunner.java:236)

          at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:49)

          at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)

          at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)

          at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)

          at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)

          at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)

[5,13]: [ERR 102] Line 5:13 mismatched input 'myLoan' in rule "RuleFlow-Split-com.sample.bpmn-5-3-DROOLS_DEFAULT" in pattern

[12,13]: [ERR 102] Line 12:13 mismatched input 'myLoan' in rule "RuleFlow-Split-com.sample.bpmn-5-4-DROOLS_DEFAULT" in pattern

[0,0]: Parser returned a null Package

in attachement you can find the project file

does any one can provide help???

http://www.2shared.com/file/2loSNUHP/loanExampletar.html

[swiderski.maciej]

try with this:

<conditionExpression xsi:type="tFormalExpression" >return myLoan.isDeliveryStatus();</conditionExpression>

HTH

[ous2k]

Thx Maciej Swiderski i have tried that but there is some thing else wrong ,

to in same wave i have added the process varibale myLoan as an object and className com.sample.Loan from using properties palette on eclipse

ava.lang.RuntimeException: Exception when trying to evaluate constraint VIP in split Gateway

          at org.jbpm.workflow.instance.node.SplitInstance.internalTrigger(SplitInstance.java:79)

          at org.jbpm.workflow.instance.impl.NodeInstanceImpl.trigger(NodeInstanceImpl.java:122)

          at org.jbpm.workflow.instance.impl.NodeInstanceImpl.triggerConnection(NodeInstanceImpl.java:185)

          at org.jbpm.workflow.instance.impl.NodeInstanceImpl.triggerCompleted(NodeInstanceImpl.java:150)

          at org.jbpm.workflow.instance.node.StartNodeInstance.triggerCompleted(StartNodeInstance.java:49)

          at org.jbpm.workflow.instance.node.StartNodeInstance.internalTrigger(StartNodeInstance.java:41)

          at org.jbpm.workflow.instance.impl.NodeInstanceImpl.trigger(NodeInstanceImpl.java:122)

          at org.jbpm.ruleflow.instance.RuleFlowProcessInstance.internalStart(RuleFlowProcessInstance.java:35)

          at org.jbpm.process.instance.impl.ProcessInstanceImpl.start(ProcessInstanceImpl.java:188)

          at org.jbpm.workflow.instance.impl.WorkflowProcessInstanceImpl.start(WorkflowProcessInstanceImpl.java:303)

          at org.jbpm.process.instance.ProcessRuntimeImpl.startProcessInstance(ProcessRuntimeImpl.java:168)

          at org.jbpm.process.instance.ProcessRuntimeImpl.startProcess(ProcessRuntimeImpl.java:138)

          at org.drools.common.AbstractWorkingMemory.startProcess(AbstractWorkingMemory.java:1079)

          at org.drools.impl.StatefulKnowledgeSessionImpl.startProcess(StatefulKnowledgeSessionImpl.java:306)

          at com.sample.CustomerSelection.main(CustomerSelection.java:32)

Caused by: java.lang.RuntimeException: unable to execute ReturnValueEvaluator

          at org.jbpm.process.instance.impl.ReturnValueConstraintEvaluator.evaluate(ReturnValueConstraintEvaluator.java:130)

          at org.jbpm.workflow.instance.node.SplitInstance.internalTrigger(SplitInstance.java:72)

          ... 14 more

Caused by: [Error: null pointer: loan.isDeliveryStatus()]

[Near : {... return loan.isDeliveryStatus() ....}]

             ^

[Line: 1, Column: 1]

          at org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer.compileGetChain(ReflectiveAccessorOptimizer.java:434)

          at org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer.optimizeAccessor(ReflectiveAccessorOptimizer.java:141)

          at org.mvel2.ast.ASTNode.optimize(ASTNode.java:157)

          at org.mvel2.ast.ASTNode.getReducedValueAccelerated(ASTNode.java:113)

          at org.mvel2.compiler.ExecutableAccessor.getValue(ExecutableAccessor.java:38)

          at org.mvel2.ast.ReturnNode.getReducedValueAccelerated(ReturnNode.java:50)

          at org.mvel2.MVELRuntime.execute(MVELRuntime.java:87)

          at org.mvel2.compiler.CompiledExpression.getValue(CompiledExpression.java:122)

          at org.mvel2.compiler.CompiledExpression.getValue(CompiledExpression.java:115)

          at org.mvel2.MVEL.executeExpression(MVEL.java:930)

          at org.jbpm.process.instance.impl.MVELReturnValueEvaluator.evaluate(MVELReturnValueEvaluator.java:100)

          at org.jbpm.process.instance.impl.ReturnValueConstraintEvaluator.evaluate(ReturnValueConstraintEvaluator.java:128)

          ... 15 more

Caused by: java.lang.NullPointerException

          at org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer.compileGetChain(ReflectiveAccessorOptimizer.java:395)

          ... 26 more

Best Regards

[swiderski.maciej]

ous2k wrote:

Caused by: [Error: null pointer: loan.isDeliveryStatus()]

[Near : {... return loan.isDeliveryStatus() ....}]

maybe you reference wrong variable, as you said you defined variable with name myLoan?

[ous2k]

i think the problem is in the evaluation or some thing like that  Caused by: java.lang.RuntimeException: unable to execute ReturnValueEvaluatore do you agree

in attachement you can find the code

http://www.2shared.com/file/NqGr1flD/customerselection.html

Best Regards

[ous2k]

@Maciej Swiderski you answer is correct,there was an other problem in identifier of variable injected from java testing class

in attachement you can find the correct code, Thx For help Maciej

http://www.2shared.com/file/M251nied/customerselection.html