[rules-users] Drools Flow: Variable Persistence Strategies

[Mauricio Salatino]

The first patch is already in the trunk.
About the second problem, we are trying to remove the
@CollectionOfElements annotation, (because it's hibernate specific) that's
why you see the other one commented out. I will try fix it asap, to be able
to use toplink as persistence provider as well. Probably that will fix your
problem too.


2010/2/18 Dale Wyttenbach <dale.wyttenbach at gmail.com>

> That's correct, it works fine using h2.  Thanks.
>
> 2010/2/18 Mauricio Salatino <salaboy at gmail.com>
>
> Let me take a look at that too.. probably it's an oracle problem right? I
>> mean, probably it just happen with oracle.. we can create a fix for that too
>>
>>
>> 2010/2/18 Dale Wyttenbach <dale.wyttenbach at gmail.com>
>>
>> My pleasure.
>>>
>>> Within ProcessInstanceInfo, I've got a similar observation about the
>>> eventTypes member.  'private Set<EventType>' is currently commented out in
>>> favor of 'private Set<String>'.  When using an Oracle hibernate dialect,
>>> this results in the DDL 'create table ProcessInstanceInfo_eventTypes' which
>>> yields the error 'ORA-00972: identifier is too long'.  I imagine this will
>>> be resolved when the String is promoted to EventType but I thought you might
>>> want to know.
>>>
>>> 2010/2/13 Mauricio Salatino <salaboy at gmail.com>
>>>
>>> done.. I will apply the patch into the trunk.. it seems to be correct.
>>>> Thanks a lot!
>>>>
>>>> 2010/2/13 Dale Wyttenbach <dale.wyttenbach at gmail.com>
>>>>
>>>> Please see attached.
>>>>>
>>>>>
>>>>> 2010/2/12 Mauricio Salatino <salaboy at gmail.com>
>>>>>
>>>>>> I just want to make sure before apply the patch that the change will
>>>>>> not impact in other places.
>>>>>> Thanks
>>>>>>
>>>>>>
>>>>>> On Fri, Feb 12, 2010 at 5:38 PM, Mauricio Salatino <salaboy at gmail.com
>>>>>> > wrote:
>>>>>>
>>>>>>> can you post both, previous and new, sql schema generated for the
>>>>>>> VariableInstanceInfo and ProcessInstanceInfo tables?
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> 2010/2/12 Dale Wyttenbach <dale.wyttenbach at gmail.com>
>>>>>>>
>>>>>>>> If you try to write a query that
>>>>>>>> requires VariableInstanceInfo.processId, it won't work because that class
>>>>>>>> has no processId member.
>>>>>>>> I guessed that processInstanceId would be a better join column, and
>>>>>>>> that worked (patch attached)
>>>>>>>>
>>>>>>>> Thanks for the reply.
>>>>>>>>
>>>>>>>> 2010/2/12 Mauricio Salatino <salaboy at gmail.com>
>>>>>>>>
>>>>>>>> Hmm..
>>>>>>>>> I'm looking at the source and I see the following mapping:
>>>>>>>>>
>>>>>>>>> @OneToMany(cascade = CascadeType.ALL)
>>>>>>>>>     @JoinColumn(name = "processId")
>>>>>>>>>     @MapKey(name = "name")
>>>>>>>>>     private Map<String, VariableInstanceInfo> variables          =
>>>>>>>>> new HashMap<String, VariableInstanceInfo>();
>>>>>>>>>
>>>>>>>>> That makes me think that there is a join column called processId
>>>>>>>>> between VariableInstanceInfo and ProcessInstanceInfo.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> 2010/2/12 Dale Wyttenbach <dale.wyttenbach at gmail.com>
>>>>>>>>>
>>>>>>>>>> I have a patch for drools-persistence-jpa should anyone agree with
>>>>>>>>>> me that ProcessInstanceInfo and VariableInstanceInfo should be joined by
>>>>>>>>>> processInstanceId.
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> On Fri, Feb 12, 2010 at 10:52 AM, Dale Wyttenbach <
>>>>>>>>>> dale.wyttenbach at gmail.com> wrote:
>>>>>>>>>>
>>>>>>>>>>> I'm trying to adapt the StringVariablePersister presented in
>>>>>>>>>>> http://blog.athico.com/2009/09/drools-flow-variable-persistence.html
>>>>>>>>>>>
>>>>>>>>>>> <http://blog.athico.com/2009/09/drools-flow-variable-persistence.html>I
>>>>>>>>>>> can create process instances with variable "color":
>>>>>>>>>>>
>>>>>>>>>>>   private static WorkflowProcessInstance
>>>>>>>>>>> startProcess(StatefulKnowledgeSession ksession, String color) {
>>>>>>>>>>>     Map<String, Object> vars = new HashMap<String, Object>();
>>>>>>>>>>>     vars.put("color", color);
>>>>>>>>>>>     WorkflowProcessInstance p1 = (WorkflowProcessInstance)
>>>>>>>>>>> ksession.startProcess("com.sample.ruleflow", vars);
>>>>>>>>>>>     return p1;
>>>>>>>>>>>   }
>>>>>>>>>>>
>>>>>>>>>>> I can count them:
>>>>>>>>>>>
>>>>>>>>>>> select
>>>>>>>>>>>     count(*)
>>>>>>>>>>> from
>>>>>>>>>>>     ProcessInstanceInfo
>>>>>>>>>>>
>>>>>>>>>>> However I'm stymied as to counting process instances with a given
>>>>>>>>>>> color, as there appears to be no join column between ProcessInstanceInfo and
>>>>>>>>>>> VariableInstanceInfo.
>>>>>>>>>>> Can such a query be written?
>>>>>>>>>>>
>>>>>>>>>>> Thanks.
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>
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>>>>>>>>>> https://lists.jboss.org/mailman/listinfo/rules-users
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> --
>>>>>>>>> - http://salaboy.wordpress.com
>>>>>>>>> - http://www.jbug.com.ar
>>>>>>>>> - Salatino "Salaboy" Mauricio -
>>>>>>>>>
>>>>>>>>> _______________________________________________
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>>>>>>>>> https://lists.jboss.org/mailman/listinfo/rules-users
>>>>>>>>>
>>>>>>>>>
>>>>>>>>
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>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> - http://salaboy.wordpress.com
>>>>>>> - http://www.jbug.com.ar
>>>>>>> - Salatino "Salaboy" Mauricio -
>>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> - http://salaboy.wordpress.com
>>>>>> - http://www.jbug.com.ar
>>>>>> - Salatino "Salaboy" Mauricio -
>>>>>>
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>>>>>>
>>>>>>
>>>>>
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>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> - http://salaboy.wordpress.com
>>>> - http://www.jbug.com.ar
>>>> - Salatino "Salaboy" Mauricio -
>>>>
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>>
>>
>> --
>> - http://salaboy.wordpress.com
>> - http://www.jbug.com.ar
>> - Salatino "Salaboy" Mauricio -
>>
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>
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- http://www.jbug.com.ar
- Salatino "Salaboy" Mauricio -
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