Re: [rules-users] Flow and Rules Together - Best practice question
Hi Mike, I have been working with Drools for only a few months now and am still rather new to it, but we've have made the same experience, switching from rules only to rules with flow, and I'm certain it's the right way to go. The performance implications you mention depend mainly on the way the rules are set up, I guess. That is, if you have expensive RHS expressions like eval() you might indeed profit from keeping your glucose-level condition at the beginning of the rules which would prevent those expressions from being reevaluted, as far as I understand. If you don't I can hardly imagine that activating the rules makes up a noticeable fraction of the overall time of your process. We here have a scenario where some rules may be activated only if the user starting the session has got corresponding privileges. Since determining the priviliges is not always trivial we definitely wanted to have that logic in one place. The first thing to do was to use inference (http://docs.codehaus.org/display/LOGICABYSS/Policy+Encapsulation) but still already with a few dozen rules and including other constraints the rule RHsides became rather cluttered. Moreover it was getting increasingly complex to control the order in which the rules fired, maintanance being another issue. Using a rule flow we have achieved really good separation of concerns: A rule's RHS mostly contains exactly those conditions that apply to its intent, none of the cross-concerns or technicalities. (Hey, what about an AspectDrools implementation? ;-) ) I am confident that OO lessons apply here, too: If you have a clean design and performance problems start to show up you are much more likely to solve them than if you have a tangled web of dependencies. Greetings, Gerret ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] rules-users Digest, Vol 39, Issue 45
Hi
In drools in deployment we get the below link.
http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/xxx/LATEST.drl
We need to include this in properties file in application wherein this URL
is mentioned.
How can one protect unauthorized access to this URL as the whole set of
rules can be viewed for this .
Nilima
Experience certainty. IT Services
Business Solutions
Outsourcing
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Today's Topics:
1. Re: Negating a result (Wolfgang Laun)
2. Re: Negating a result (djb)
3. Re: Negating a result (Wolfgang Laun)
4. Re: guvnor - dsl rule editor - using : in text box
(Toni Rikkola)
5. Re: getWorkingMemoryEntryPoint returns NULL (Wolfgang Laun)
6. Insert new facts from RHS (Malinda Kaushalye)
7. Re: Insert new facts from RHS (Mauricio Salatino)
8. Re: Insert new facts from RHS (Enda J Diggins)
--
Message: 1
Date: Wed, 17 Feb 2010 09:48:50 +0100
From: Wolfgang Laun wolfgang.l...@gmail.com
Subject: Re: [rules-users] Negating a result
To: Rules Users List rules-users@lists.jboss.org
Message-ID:
17de7ee81002170048j6898203br6a73e2e2962cb...@mail.gmail.com
Content-Type: text/plain; charset=iso-8859-1
Please be more specfic. If your field is called foo, then
should have a method in the class representing
your fact, such as:
boolean getFoo(){
return condition ? ! (expression) : expression;
}
Basically, condition could be a global parameter (public static final)
or a static or regular method call. expression could depend on other
attribute values, and so on.
You can then write your CEs with a test such as
foo == true
But I think this is closely related with that other question you
have posted.
-W
On Wed, Feb 17, 2010 at 9:32 AM, djb dbrownel...@hotmail.com wrote:
Hi Wolfgang,
Sure, I know de Morgan's laws, but I'm not asking how one can negate a
condition...
I'm asking how one can either negate or not negate, based on a test...
and
whether I'm going to have to split my spreadsheet/rule-template into 2,
(i.e. 1 for may not be rules, 1 for must be rules).
My spreadsheet has a field that in Java would be expressed as field ?
!finalResult : finalResult
But in DRL, it seems the lack of a ternary operator means I have to
split
my
rule-set, and I'm just checking if this is the case.
-Daniel
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Date: Wed, 17 Feb 2010 02:02:08 -0800 (PST)
From: djb dbrownel...@hotmail.com
Subject: Re: [rules-users] Negating a result
To: rules-users@lists.jboss.org
Message-ID: 1266400928420-212797.p...@n3.nabble.com
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Well the thing is, it's not just one condition - it's the combination of
all
my rule's conditions.
And my rules have about 7 conditions, none of which are mandatory.
And that is actually the source of all my problems: that the conditions
are
optional.
If I set up a few logical relationships, there is nothing specific I am
testing on, which gives a single expression I can test in a function. In
procedural programming, I check each of the 7 conditions optionally, and
then I apply my ternary operator to the final result. But here I can't do
that, because the condition is made up of all the little conditions that
may
or may not be applicable.
PS.
Ok, so I see from the other thread that a rule template is meant to place
whatever text you give it, like a text pre-processor. I'll see if that is
correct, thanks. I thought it might not be, because if you provide a
blank
cell, it deletes your entire condition, instead
[rules-users] MarshallerReaderContext.resolveClass() unhandled null pionter exception
Is was going through the source code of Drools 5.1 M1 and found out that it may happen (as i have checked with my test cases) that the resolveClass method can also throw a null pointer exception which is not handeled in this function and because of which the completeWorkItem() also fails.. need some suggestions for work around.if already in trunk.. thanks in advance Please consider if said something wrong or so...b'coz newbie here. -- View this message in context: http://n3.nabble.com/MarshallerReaderContext-resolveClass-unhandled-null-pionter-exception-tp215025p215025.html Sent from the Drools - User mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] MarshallerReaderContext.resolveClass() unhandled null pionter exception
sorry i missed something the null pointer is caused by the ruleBase variable which can b null when calling the constructor from WorkItemInfo class using getWorkItem(); thanks once again -- View this message in context: http://n3.nabble.com/MarshallerReaderContext-resolveClass-unhandled-null-pionter-exception-tp215025p215028.html Sent from the Drools - User mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Flow and Rules Together - Best practice question
Nice post, Gerret. Cean logic, nicely presented. Separation of concerns vs tangled web of dependencies. whooo! On Thu, Feb 18, 2010 at 3:05 AM, Gerret Hansper gerret.pub...@gmx.dewrote: Hi Mike, I have been working with Drools for only a few months now and am still rather new to it, but we've have made the same experience, switching from rules only to rules with flow, and I'm certain it's the right way to go. The performance implications you mention depend mainly on the way the rules are set up, I guess. That is, if you have expensive RHS expressions like eval() you might indeed profit from keeping your glucose-level condition at the beginning of the rules which would prevent those expressions from being reevaluted, as far as I understand. If you don't I can hardly imagine that activating the rules makes up a noticeable fraction of the overall time of your process. We here have a scenario where some rules may be activated only if the user starting the session has got corresponding privileges. Since determining the priviliges is not always trivial we definitely wanted to have that logic in one place. The first thing to do was to use inference (http://docs.codehaus.org/display/LOGICABYSS/Policy+Encapsulation) but still already with a few dozen rules and including other constraints the rule RHsides became rather cluttered. Moreover it was getting increasingly complex to control the order in which the rules fired, maintanance being another issue. Using a rule flow we have achieved really good separation of concerns: A rule's RHS mostly contains exactly those conditions that apply to its intent, none of the cross-concerns or technicalities. (Hey, what about an AspectDrools implementation? ;-) ) I am confident that OO lessons apply here, too: If you have a clean design and performance problems start to show up you are much more likely to solve them than if you have a tangled web of dependencies. Greetings, Gerret ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] Decision table parameter problem ?
When i write this in decision table RuleTable example(Integer i, Integer j) i got exception : nvalid rule table header cell. Should be in the format of 'RuleTable YourRuleName'. It was: [RuleTable example(ParamAttribute p, Integer i)] why ? -- View this message in context: http://n3.nabble.com/Decision-table-parameter-problem-tp215178p215178.html Sent from the Drools - User mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] AGE problem
Hello,
I would like to calculate AGE of object based on Date inside object, I
can use eval but I hope it's so basic functionality that Drools should
have it. It's also performance problem if I need to use EVAL in many
rules (let's say 100 in XLS). I'm playing with some FUSION features
like:
$now : Now() $order : SecurityOrder(this before[400d, 0d] $now)
should work but I can't specify YEARS as constant. That's a problem
for long time because 30*365d isn't same as 30 years if you consider
leap years. Is it possible some easy way to calculate AGE of something
with correct time handling and compare to years? Something like:
SecurityOrder( age(createdDate) 20y, age(createdDate) 25y)
or by FUSION:
$now : Now() $order : SecurityOrder(this before[25y, 20y] $now)
For now I'm using following function in eval() but it's becoming
performance problem:
function boolean between(Calendar currentDate, Date oldDate, int from, int to) {
Calendar fromCal = Calendar.getInstance();
fromCal.setTime(oldDate);
fromCal.add(Calendar.YEAR, from);
Calendar toCal = Calendar.getInstance();
toCal.setTime(oldDate);
toCal.add(Calendar.YEAR, to);
return currentDate.after(fromCal) currentDate.before(toCal);
}
Thank you
Pavel
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Re: [rules-users] Drools Flow: Variable Persistence Strategies
My pleasure.
Within ProcessInstanceInfo, I've got a similar observation about the
eventTypes member. 'private SetEventType' is currently commented out in
favor of 'private SetString'. 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 sala...@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.wyttenb...@gmail.com
Please see attached.
2010/2/12 Mauricio Salatino sala...@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 sala...@gmail.comwrote:
can you post both, previous and new, sql schema generated for the
VariableInstanceInfo and ProcessInstanceInfo tables?
2010/2/12 Dale Wyttenbach dale.wyttenb...@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 sala...@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 MapString, VariableInstanceInfo variables = new
HashMapString, VariableInstanceInfo();
That makes me think that there is a join column called processId
between VariableInstanceInfo and ProcessInstanceInfo.
2010/2/12 Dale Wyttenbach dale.wyttenb...@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.wyttenb...@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.htmlI
can create process instances with variable color:
private static WorkflowProcessInstance
startProcess(StatefulKnowledgeSession ksession, String color) {
MapString, Object vars = new HashMapString, 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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Re: [rules-users] Drools Flow: Variable Persistence Strategies
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.wyttenb...@gmail.com
My pleasure.
Within ProcessInstanceInfo, I've got a similar observation about the
eventTypes member. 'private SetEventType' is currently commented out in
favor of 'private SetString'. 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 sala...@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.wyttenb...@gmail.com
Please see attached.
2010/2/12 Mauricio Salatino sala...@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
sala...@gmail.comwrote:
can you post both, previous and new, sql schema generated for the
VariableInstanceInfo and ProcessInstanceInfo tables?
2010/2/12 Dale Wyttenbach dale.wyttenb...@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 sala...@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 MapString, VariableInstanceInfo variables =
new HashMapString, VariableInstanceInfo();
That makes me think that there is a join column called processId
between VariableInstanceInfo and ProcessInstanceInfo.
2010/2/12 Dale Wyttenbach dale.wyttenb...@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.wyttenb...@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.htmlI
can create process instances with variable color:
private static WorkflowProcessInstance
startProcess(StatefulKnowledgeSession ksession, String color) {
MapString, Object vars = new HashMapString, 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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Re: [rules-users] Drools Flow: Variable Persistence Strategies
That's correct, it works fine using h2. Thanks.
2010/2/18 Mauricio Salatino sala...@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.wyttenb...@gmail.com
My pleasure.
Within ProcessInstanceInfo, I've got a similar observation about the
eventTypes member. 'private SetEventType' is currently commented out in
favor of 'private SetString'. 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 sala...@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.wyttenb...@gmail.com
Please see attached.
2010/2/12 Mauricio Salatino sala...@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
sala...@gmail.comwrote:
can you post both, previous and new, sql schema generated for the
VariableInstanceInfo and ProcessInstanceInfo tables?
2010/2/12 Dale Wyttenbach dale.wyttenb...@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 sala...@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 MapString, VariableInstanceInfo variables =
new HashMapString, VariableInstanceInfo();
That makes me think that there is a join column called processId
between VariableInstanceInfo and ProcessInstanceInfo.
2010/2/12 Dale Wyttenbach dale.wyttenb...@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.wyttenb...@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.htmlI
can create process instances with variable color:
private static WorkflowProcessInstance
startProcess(StatefulKnowledgeSession ksession, String color) {
MapString, Object vars = new HashMapString, 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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Re: [rules-users] Drools Flow: Variable Persistence Strategies
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.wyttenb...@gmail.com
That's correct, it works fine using h2. Thanks.
2010/2/18 Mauricio Salatino sala...@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.wyttenb...@gmail.com
My pleasure.
Within ProcessInstanceInfo, I've got a similar observation about the
eventTypes member. 'private SetEventType' is currently commented out in
favor of 'private SetString'. 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 sala...@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.wyttenb...@gmail.com
Please see attached.
2010/2/12 Mauricio Salatino sala...@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 sala...@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.wyttenb...@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 sala...@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 MapString, VariableInstanceInfo variables =
new HashMapString, VariableInstanceInfo();
That makes me think that there is a join column called processId
between VariableInstanceInfo and ProcessInstanceInfo.
2010/2/12 Dale Wyttenbach dale.wyttenb...@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.wyttenb...@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.htmlI
can create process instances with variable color:
private static WorkflowProcessInstance
startProcess(StatefulKnowledgeSession ksession, String color) {
MapString, Object vars = new HashMapString, 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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[rules-users] Question on use of Timer node in rule flow
I'm currently experimenting with including a Timer node within a rule flow. My question is: what (if any) runtime state information is persisted by Drools Flow for a Timer node? I can recreate a session via a call to JPAKnowledgeService.loadStatefulKnowledgeSession, but if a process instance was previously on a Timer node, will it start from where it left off, or will the Timer delay start from the beginning again? For example, if I have a Timer node with a delay of 7 days, but the application is stopped / crashes after 6 days, then when I recreate my session, will the Timer node just wait 1 more day, or will the delay of 7 days start from scratch? Thanks in advance for any help, Alan___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Decision table list problem ?
On 2/18/10 2:51 AM, mklaric wrote: I have written this in my decision table, and i wan't to iterate over SubParamAttribute values, but it doesn't work, why ? The program runs normaly, but no action is fired. http://n3.nabble.com/file/n214823/ScreenShot020.jpg Not sure how much your LHS pattern makes sense: subList : SubParamAttribute(zs : value == $param) from subList Did you mean instead something like: subList : SubParamAttribute(value in ($1, $2, $3, $4)) (you would have to change the cell underneith Param Attribute Names to 1,2,3,4 instead of having each on its separate row cell) ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] How to avoid clearing the rulebase in case of bad version of package found or no package found
HiWhile integrating the drools with my application, i have used the RuleAgent configuration properties as Rule Agent configuration file##newInstance = falsepoll = 30name = MyRuleAgentdir = C : /package_binariesI have put the binary file in the specified directory ( C : /package_binaries ). So it will scan the directory every 30 sec and update the ruleBase accordingly.My problem is, if i remove the binary package from the specified directory, it is scanning the directory and clearing the ruleBase (deleting).If we use the URL, even though the site is not up, or if there is no good version of package it won't effect the rulebase which is in the application. But in case of dir it is effecting the rulebase irrespective of binary package (whether it is good version/ bad or it is deleted).How can we avoid clearing the rulebase?ThanksSartaj ShaikTata Consultancy Services =-=-= Notice: The information contained in this e-mail message and/or attachments to it may contain confidential or privileged information. If you are not the intended recipient, any dissemination, use, review, distribution, printing or copying of the information contained in this e-mail message and/or attachments to it are strictly prohibited. If you have received this communication in error, please notify us by reply e-mail or telephone and immediately and permanently delete the message and any attachments. Thank you ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Drools Flow: Variable Persistence Strategies
Excellent, I have attached a unit test that demonstrates a query made
possible by the first patch, in case you are interested. The unit test is
designed to run in your example DroolsFlowVPS project,
since StringVariablePersister is not part of drools-persistence-jpa.
(Could StringVariablePersister be contributed to drools?)
2010/2/18 Mauricio Salatino sala...@gmail.com
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.wyttenb...@gmail.com
That's correct, it works fine using h2. Thanks.
2010/2/18 Mauricio Salatino sala...@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.wyttenb...@gmail.com
My pleasure.
Within ProcessInstanceInfo, I've got a similar observation about the
eventTypes member. 'private SetEventType' is currently commented out in
favor of 'private SetString'. 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 sala...@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.wyttenb...@gmail.com
Please see attached.
2010/2/12 Mauricio Salatino sala...@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
sala...@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.wyttenb...@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 sala...@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 MapString, VariableInstanceInfo variables =
new HashMapString, VariableInstanceInfo();
That makes me think that there is a join column called processId
between VariableInstanceInfo and ProcessInstanceInfo.
2010/2/12 Dale Wyttenbach dale.wyttenb...@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.wyttenb...@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.htmlI
can create process instances with variable color:
private static WorkflowProcessInstance
startProcess(StatefulKnowledgeSession ksession, String color) {
MapString, Object vars = new HashMapString, 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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- Salatino Salaboy Mauricio -
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- Salatino Salaboy Mauricio -
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Re: [rules-users] Drools Flow: Variable Persistence Strategies
Yes, of course, I add the VPS feature into drools so, I'm glad to see that
it's useful, I will add that persister, and if you are interested in do some
contributions with JCR will be nice too!
Thanks a lot for your contributions!
2010/2/18 Dale Wyttenbach dale.wyttenb...@gmail.com
Excellent, I have attached a unit test that demonstrates a query made
possible by the first patch, in case you are interested. The unit test is
designed to run in your example DroolsFlowVPS project,
since StringVariablePersister is not part of drools-persistence-jpa.
(Could StringVariablePersister be contributed to drools?)
2010/2/18 Mauricio Salatino sala...@gmail.com
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.wyttenb...@gmail.com
That's correct, it works fine using h2. Thanks.
2010/2/18 Mauricio Salatino sala...@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.wyttenb...@gmail.com
My pleasure.
Within ProcessInstanceInfo, I've got a similar observation about the
eventTypes member. 'private SetEventType' is currently commented out in
favor of 'private SetString'. 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 sala...@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.wyttenb...@gmail.com
Please see attached.
2010/2/12 Mauricio Salatino sala...@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
sala...@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.wyttenb...@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 sala...@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 MapString, VariableInstanceInfo variables
= new HashMapString, VariableInstanceInfo();
That makes me think that there is a join column called processId
between VariableInstanceInfo and ProcessInstanceInfo.
2010/2/12 Dale Wyttenbach dale.wyttenb...@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.wyttenb...@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.htmlI
can create process instances with variable color:
private static WorkflowProcessInstance
startProcess(StatefulKnowledgeSession ksession, String color) {
MapString, Object vars = new HashMapString, 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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rules-users@lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users
--
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- http://www.jbug.com.ar
- Salatino Salaboy Mauricio -
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Re: [rules-users] Decision table list problem ?
So there is no way of iterating throught list with values put vertically in a column ? But doesn't your solution gives me just if element in iteration is in some group of values let's say (1,2,3)? Le't say i have a list of 2 SubParamAttribute. One having value==1, and another value==2.I wan't my list to iterate in the first column and when value 1 in cell is equal to value==1 from SubParamAttribute to catch in column one that SubParamAttribute with has value=1, so I can send that SubParamAttribute to the next column because my SubParamAttribute has another list of other values to iterate ? Is it possible ? -- View this message in context: http://n3.nabble.com/Decision-table-list-problem-tp214823p216823.html Sent from the Drools - User mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
