12:45 a.m.
[
https://jira.jboss.org/jira/browse/JBPM-2834?page=com.atlassian.jira.plug...
]
Alejandro Guizar updated JBPM-2834:
-----------------------------------
Summary: Node.getDefaultLeavingTransition returns null when there is no unconditional
transition (was: Conditional transition cannot be considered as a default one)
Amended Node.getDefaultLeavingTransition to return the first transition if there is no
unconditional transition.
Edited the decision.element section of the jpdl chapter.
<row>
<entry><link
linkend="handler.element">handler</link></entry>
<entry>element</entry>
<entry>required, unless conditions are placed in the leaving
transitions</entry>
<entry>the fully qualified name of a class that implements the
<literal>org.jbpm.graph.node.DecisionHandler</literal>
interface</entry>
</row>
<row>
<entry>transition conditions</entry>
<entry>'condition' attribute or element in each child
'transition' element</entry>
<entry></entry>
<entry>Every transition may have a guard condition. The decision node
examines the leaving transitions having a condition, and selects the first
transition whose condition is true. In case no condition is met, the
<emphasis>default</emphasis> transition is taken. The default
transition is
the first unconditional transition if there is one, or else the first
conditional transition. Transitions are considered in document order.
See <link linkend="condition.element">the condition
element</link>
</entry>
</row>
Node.getDefaultLeavingTransition returns null when there is no
unconditional transition
---------------------------------------------------------------------------------------
Key: JBPM-2834
URL: https://jira.jboss.org/jira/browse/JBPM-2834
Project: jBPM
Issue Type: Bug
Security Level: Public(Everyone can see)
Components: Runtime Engine
Affects Versions: jBPM 3.2.8, jBPM 3.2.9
Environment: SOA-P 4.3.CP03 ER1
Reporter: Martin Vecera
Assignee: Alejandro Guizar
Original Estimate: 0 minutes
Remaining Estimate: 0 minutes
The documentation reads:
====
The contents of the condition element is a jPDL expression that should evaluate to a
boolean. A decision takes the first transition (as ordered in the processdefinition.xml)
for which the expression resolves to true. If none of the conditions resolve to true, the
default leaving transition (== the first one) will be taken.
====
If I have only a conditional transition in a node (hence the first one) it is not used as
the default leaving transition.
Process definition to simulate the behaviour:
====
<?xml version="1.0" encoding="UTF-8"?>
<process-definition xmlns="urn:jbpm.org:jpdl-3.2"
name="processDefinition3">
<start-state name="start">
<transition to="node1"></transition>
</start-state>
<node name="node1" async="true">
<transition to="node2" condition="#{AAA ==
null}"></transition>
</node>
<node name="node2">
<transition to="end1"></transition>
</node>
<end-state name="end1"></end-state>
</process-definition>
====
Exception being thrown on signaling process's token:
10:16:33,629 ERROR [JobExecutorThread] job execution failure
org.jbpm.JbpmException: transition is null
at org.jbpm.graph.def.Node.leave(Node.java:449)
at org.jbpm.graph.def.Node.leave(Node.java:430)
at org.jbpm.graph.def.Node.execute(Node.java:421)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:173)
at org.jbpm.graph.def.Node_$$_javassist_81.execute(Node_$$_javassist_81.java)
at org.jbpm.job.ExecuteNodeJob.execute(ExecuteNodeJob.java:24)
at
org.jbpm.job.executor.JobExecutorThread.executeJob(JobExecutorThread.java:192)
at org.jbpm.job.executor.JobExecutorThread.run(JobExecutorThread.java:66)
JBPM-Console says:
Error signalling token: An exception of type "org.jbpm.JbpmException" was
thrown. The message is: Node(node1) has no default transition
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