[rules-users] Drools Flow: Variable Persistence Strategies

[Dale Wyttenbach]

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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>>>>>>>>
>>>>>>>
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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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>>
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>
>
> --
> - http://salaboy.wordpress.com
> - http://www.jbug.com.ar
> - Salatino "Salaboy" Mauricio -
>
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