Re: [rules-users] using From keyword in the rule
Thank you everyone for your response. I am using Guvnor 5.5.0. The combine string method will take 2 strings as an arguments and concatinate in the following pattern String1@string2. This string will be the output of the method. I am really not sure why it is asking for Boolean. Also this method is written inside Guvnor using Function asset. Thank you, Isha -- View this message in context: http://drools.46999.n3.nabble.com/using-From-keyword-in-the-rule-tp4025163p4025183.html Sent from the Drools: User forum 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] using From keyword in the rule
There you are: you cannot use a method call such as POC_CombineString($value.getField1(),$value.getField2()) as a pattern on the LHS. This is absolutely basic. -W On 29 July 2013 15:49, IPatel ishita.pa...@usbank.com wrote: Thank you everyone for your response. I am using Guvnor 5.5.0. The combine string method will take 2 strings as an arguments and concatinate in the following pattern String1@string2. This string will be the output of the method. I am really not sure why it is asking for Boolean. Also this method is written inside Guvnor using Function asset. Thank you, Isha -- View this message in context: http://drools.46999.n3.nabble.com/using-From-keyword-in-the-rule-tp4025163p4025183.html Sent from the Drools: User forum 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 mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] using From keyword in the rule
There is no reason why this should not compile. I suspect that you have not posted the *accurate* text of the rule where that error occurred. Does the snippet you've mailed cause the same error? -W On 26/07/2013, IPatel ishita.pa...@usbank.com wrote: Thank you for your replay... here is what i am using package POC2013 dialect mvel import com.usbank.tmup.rules.value.Database import com.usbank.tmup.rules.value.TestValue import com.usbank.tmup.rules.value.DatabaseConnection rule getting user when $value: TestValue() record : POC_CombineString($value.getField1(),$value.getField2()) val : TestValue() from Database.connect().getUserRisk(record); then System.out.println(The value of the score is + val); end -- View this message in context: http://drools.46999.n3.nabble.com/using-From-keyword-in-the-rule-tp4025163p4025165.html Sent from the Drools: User forum 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 mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] using From keyword in the rule
On 27/07/2013, Stephen Masters stephen.mast...@me.com wrote: I guess it depends on whether there is a static connect() method on the Database class which returns a DatabaseConnection, which in turn has a method getUserRisk(POC_CombineString), which returns an instance of the TestValue class. All three possibilities should result in an error such as: unable to resolve method using strict-mode: Database.connect()] -W ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] using From keyword in the rule
By the way, what is POC_CombineString supposed to be? A pattern or a function call? Davide p.s. which version are you using? On 07/26/2013 10:18 PM, IPatel wrote: Thank you for your replay... here is what i am using package POC2013 dialect mvel import com.usbank.tmup.rules.value.Database import com.usbank.tmup.rules.value.TestValue import com.usbank.tmup.rules.value.DatabaseConnection rule getting user when $value: TestValue() record : POC_CombineString($value.getField1(),$value.getField2()) val : TestValue() from Database.connect().getUserRisk(record); then System.out.println(The value of the score is + val); end -- View this message in context: http://drools.46999.n3.nabble.com/using-From-keyword-in-the-rule-tp4025163p4025165.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] using From keyword in the rule
On 27/07/2013, Stephen Masters stephen.mast...@me.com wrote: Ah … spotted the specific exception by going back to Nabble. I was just looking for reasons why it might not compile. :) To be honest the line: record : POC_CombineString($value.getField1(),$value.getField2()) … looks wrong. I can't work out a way in which it could compile, even if I assume that the code is missing imports of either a POC_CombineString function or class. If both methods return a boolean...? Any boolean expression is a valid constraint. It does look strange, though. -W ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] using From keyword in the rule
Hi, I am trying to use the From keyword when writing rule and i am getting following error: mismatched input 'from' in rule parser returned a null package here is my use case, i am getting a user and i calling a database to get some number associated with this user Does anyone know why i am getting this error? thank you in advance Isha -- View this message in context: http://drools.46999.n3.nabble.com/using-From-keyword-in-the-rule-tp4025163.html Sent from the Drools: User forum 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] using From keyword in the rule
On 26/07/2013, IPatel ishita.pa...@usbank.com wrote: Hi, I am trying to use the From keyword when writing rule and i am getting following error: mismatched input 'from' in rule parser returned a null package here is my use case, i am getting a user and i calling a database to get some number associated with this user Does anyone know why i am getting this error? Yes: you have made a syntax error. -W thank you in advance Isha -- View this message in context: http://drools.46999.n3.nabble.com/using-From-keyword-in-the-rule-tp4025163.html Sent from the Drools: User forum 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 mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] using From keyword in the rule
Thank you for your replay... here is what i am using package POC2013 dialect mvel import com.usbank.tmup.rules.value.Database import com.usbank.tmup.rules.value.TestValue import com.usbank.tmup.rules.value.DatabaseConnection rule getting user when $value: TestValue() record : POC_CombineString($value.getField1(),$value.getField2()) val : TestValue() from Database.connect().getUserRisk(record); then System.out.println(The value of the score is + val); end -- View this message in context: http://drools.46999.n3.nabble.com/using-From-keyword-in-the-rule-tp4025163p4025165.html Sent from the Drools: User forum 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] Using FROM in decision table
Thanks Wolfgang, we will possibly look at upgrading. -- View this message in context: http://drools.46999.n3.nabble.com/Using-FROM-in-decision-table-tp4024617p4024669.html Sent from the Drools: User forum 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] Using FROM in decision table
Hi there, Would like to find out if it is possible to use the FROM keyword in decision tables, I cant seem to find any examples anywhere. I need to iterate over a collection from within a CONDITION in the decision table. Any help would be appreciated. Thanks Devan -- View this message in context: http://drools.46999.n3.nabble.com/Using-FROM-in-decision-table-tp4024617.html Sent from the Drools: User forum 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] Using FROM in decision table
Why don't you simply try something like this: ThisClass() from $somewhere as a condition? -W On 28/06/2013, devan.vanree...@gmail.com devan.vanree...@gmail.com wrote: Hi there, Would like to find out if it is possible to use the FROM keyword in decision tables, I cant seem to find any examples anywhere. I need to iterate over a collection from within a CONDITION in the decision table. Any help would be appreciated. Thanks Devan -- View this message in context: http://drools.46999.n3.nabble.com/Using-FROM-in-decision-table-tp4024617.html Sent from the Drools: User forum 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 mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Using FROM in decision table
http://drools.46999.n3.nabble.com/file/n4024620/Untitled.png As per the attached image I have attempted to do this but still doing something wrong as I am trying to evaluate id property on the DocumentType class but source generates incorrectly. it generates the below source 1.| #generated from Decision Table 2.| import uk.co.pruprotect.claims.rules.document.IDocumentRule; 3.| import uk.co.pruprotect.claims.rules.document.ClaimDocumentRule; 4.| import uk.co.pruprotect.claims.rules.document.DocumentEnum; 5.| import uk.co.pruprotect.domain.claims.jpa.entity.DocumentType; 6.| import uk.co.pruprotect.claims.rules.document.IBenefitCategoryDocumentRule; 7.| import uk.co.pruprotect.claims.rules.document.ClaimBenefitCategoryDocumentRule; 8.| global IBenefitCategoryDocumentRule globalDocumentRule; 9.| #From row number: 11 10. | rule Life Cover 11. | 12. | when 13. | $i:IBenefitCategoryDocumentRule(benefitCategoryCode == 1) 14. | DocumentType() from $i.getAllDocumentTypeList();(id in (1, 2, 3)) 15. | then 16. | end -- View this message in context: http://drools.46999.n3.nabble.com/Using-FROM-in-decision-table-tp4024617p4024620.html Sent from the Drools: User forum 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] Using FROM in decision table
I have tried something I think to what you are suggesting but I am doing something wrong as the source does not generate correctly from the decision table http://drools.46999.n3.nabble.com/file/n4024621/Untitled.png getAllDocumentTypeList returns a collection of DocumentType and I am trying to evaluate the id property of DocumentType | #generated from Decision Table 2.| 9.| #From row number: 11 10. | rule Test 11. | 12. | when 13. | $d:DocumentRule(code == 1) 14. | DocumentType() from $d.getAllDocumentTypeList();(id in (1, 2, 3)) 15. | then 16. | end -- View this message in context: http://drools.46999.n3.nabble.com/Using-FROM-in-decision-table-tp4024617p4024621.html Sent from the Drools: User forum 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] Using FROM in decision table
I can't reproduce this effect, not with 5.5.0 or 5.4.0 -W On 28/06/2013, devan.vanree...@gmail.com devan.vanree...@gmail.com wrote: http://drools.46999.n3.nabble.com/file/n4024620/Untitled.png As per the attached image I have attempted to do this but still doing something wrong as I am trying to evaluate id property on the DocumentType class but source generates incorrectly. it generates the below source 1.| #generated from Decision Table 2.| import uk.co.pruprotect.claims.rules.document.IDocumentRule; 3.| import uk.co.pruprotect.claims.rules.document.ClaimDocumentRule; 4.| import uk.co.pruprotect.claims.rules.document.DocumentEnum; 5.| import uk.co.pruprotect.domain.claims.jpa.entity.DocumentType; 6.| import uk.co.pruprotect.claims.rules.document.IBenefitCategoryDocumentRule; 7.| import uk.co.pruprotect.claims.rules.document.ClaimBenefitCategoryDocumentRule; 8.| global IBenefitCategoryDocumentRule globalDocumentRule; 9.| #From row number: 11 10. | rule Life Cover 11. | 12. | when 13. | $i:IBenefitCategoryDocumentRule(benefitCategoryCode == 1) 14. | DocumentType() from $i.getAllDocumentTypeList();(id in (1, 2, 3)) 15. | then 16. | end -- View this message in context: http://drools.46999.n3.nabble.com/Using-FROM-in-decision-table-tp4024617p4024620.html Sent from the Drools: User forum 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 mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Using FROM in decision table
Thanks for feedback. We are using an old version - 5.0.0. -- View this message in context: http://drools.46999.n3.nabble.com/Using-FROM-in-decision-table-tp4024617p4024625.html Sent from the Drools: User forum 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] Using FROM in decision table
Upgrade. IIRC, serious improvements were done for 5.2.0 and, possibly, later on, too. 5.0.0 is *very* out of time. -W On 28 June 2013 15:31, devan.vanree...@gmail.com devan.vanree...@gmail.comwrote: Thanks for feedback. We are using an old version - 5.0.0. -- View this message in context: http://drools.46999.n3.nabble.com/Using-FROM-in-decision-table-tp4024617p4024625.html Sent from the Drools: User forum 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 mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] using from accumulate with wrong return type
Hello, I have a problem with using the /from accumulate/ statement. It is because I'd like to optmize my code a liitle bit. There are two rules that I like to merge. /query max recomm value for slot 1 accumulate (Recommendation(slot == 1, $recomm_value : recommValue), max : max($recomm_value)) end/ and /query recomms for slot 1 recomm : Recommendation(slot == 1) end/ So with the first rule I get the maximum of the variable recommValue. The second rule is for searching exactly this Recommendation-fact with this value. Now I tried to merge them in the following way: / query recomm for slot 1 $recomm : Recommendation() from accumulate(Recommendation( slot == 1, $recomm_value : recommValue), max($recomm_value) ) end/ But the returned value always is a double one. Is it because of the usage of the maximum function? Is it possible to solve this problem with only one query (getting that Recommendation-fact with the highest recommValue)? Regards... -- View this message in context: http://drools.46999.n3.nabble.com/using-from-accumulate-with-wrong-return-type-tp4020957.html Sent from the Drools: User forum 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] using from accumulate with wrong return type
Each (not *the*) Recommendation with the maximum recommValue can be found using $recMax: Recommendation( slot == 1, $recommValue: recommValue) not Recommendation( slot == 1, recommValue $recommValue ) with $recMax being bound to one of the Recommendations with the maximum, and the maximum value being bound to $recommValue. -W On 24 November 2012 13:18, raffi christian.koeh...@s2008.tu-chemnitz.dewrote: Hello, I have a problem with using the /from accumulate/ statement. It is because I'd like to optmize my code a liitle bit. There are two rules that I like to merge. /query max recomm value for slot 1 accumulate (Recommendation(slot == 1, $recomm_value : recommValue), max : max($recomm_value)) end/ and /query recomms for slot 1 recomm : Recommendation(slot == 1) end/ So with the first rule I get the maximum of the variable recommValue. The second rule is for searching exactly this Recommendation-fact with this value. Now I tried to merge them in the following way: / query recomm for slot 1 $recomm : Recommendation() from accumulate(Recommendation( slot == 1, $recomm_value : recommValue), max($recomm_value) ) end/ But the returned value always is a double one. Is it because of the usage of the maximum function? Is it possible to solve this problem with only one query (getting that Recommendation-fact with the highest recommValue)? Regards... -- View this message in context: http://drools.46999.n3.nabble.com/using-from-accumulate-with-wrong-return-type-tp4020957.html Sent from the Drools: User forum 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 mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] using from accumulate with wrong return type
Thank you very much. This works perfect. The Solution can be that easy. -- View this message in context: http://drools.46999.n3.nabble.com/using-from-accumulate-with-wrong-return-type-tp4020957p4020959.html Sent from the Drools: User forum 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] Using 'from {x}.field' in DSL
On 13/06/2012, Sandjaja, Dominik dominik.sandj...@it-motive.de wrote:
Hello Wolfgang, hello everybody,
Nice one, thanks for the idea! This one works for now, but is there a way to
automatically assign random variable names to the RHS of the DSL? So the
user won't have to explicitly set a variable in the DSL which is only needed
for internal purposes.
This is one thing I've occasionally missed, too, in my experiments
with DSLs. It wouldn't be too difficult to add, and patch/pull
requests are always welcome with the Drools team.
If at least one of the variables differs between repeated uses of the
DSL phrase, you might consider using this text (if its characters are
always suitable!) as part of the binding variable name, e.g.
[when][]The field {field} in the module {module} contains value {value}=
{value}Obj : {module} ( {field} != null) String(
this.equalsIgnoreCase( {value} ) ) from {value}Obj.{field}
BTW, consider defining a custom operator which would let you write the
much simpler pattern
Module( field spells value )
You can make a trivial clone from the implementation of contains,
shouldn't take more than 5 minutes ;-) Some hints can be found at
http://members.inode.at/w.laun/drools/CustomOperatorHowTo.html
Cheers
-W
Thanks
Dominik
-Ursprüngliche Nachricht-
Von: rules-users-boun...@lists.jboss.org
[mailto:rules-users-boun...@lists.jboss.org] Im Auftrag von Wolfgang Laun
Gesendet: Dienstag, 12. Juni 2012 19:46
An: Rules Users List
Cc: Edson Tirelli
Betreff: Re: [rules-users] Using 'from {x}.field' in DSL
There is a bug in the DSL parser: after '=', a couple of variable references
merely separated by a period isn't recognized.
As a workaround, use this:
[when][]The field {field} in the module {module} contains value {value} as
{abc} =
{abc}x : {module} ( {field} != null) String(
this.equalsIgnoreCase({value}) ) from {abc}x.{field}
-W
On 12/06/2012, Sandjaja, Dominik dominik.sandj...@it-motive.de wrote:
There is no expanded DRL. If I take that line into the DSL, I can't
even validate the DSL and if I have the line in it, I can't select any
DSL statements for rules in Guvnor.
BTW, I am using Drools and Guvnor 5.4.0.
Von: rules-users-boun...@lists.jboss.org
[mailto:rules-users-boun...@lists.jboss.org] Im Auftrag von Wolfgang
Laun
Gesendet: Dienstag, 12. Juni 2012 17:31
An: Rules Users List
Betreff: Re: [rules-users] Using 'from {x}.field' in DSL
Have you checked the expanded DRL? What does this line look like?
-W
On 12 June 2012 17:06, Sandjaja, Dominik
dominik.sandj...@it-motive.de
wrote:
I have the following Drools DSL sentence:
[when]The field {field} in the module {module} contains value
{value}=$a : {module} ( {field} != null)
String( this.equalsIgnoreCase({value}) ) from $a.{field}
where the `field` is a `Set` of Strings.
Now, if I have two of these sentences in one rule, it obviously won't
work as the variable `$a` occurs twice. So I wanted to improve the
rule to make the variable, well, variable:
[when]The field {field} in the module {module} contains value
{value} as {a}={a} : {module} ( {field} != null)
String( this.equalsIgnoreCase({value}) ) from {a}.{field}
This doesn't work, I can't use the part `{a}.`, that breaks.
So, my questions are: Is there either a way to rewrite the rules or a
way to allow the `{variable}.` notation to work? Alternatively, is
there a `contains` operator which works case insensitive?
Thanks in advance
Dominik
___
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 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] Using 'from {x}.field' in DSL
I have the following Drools DSL sentence:
[when]The field {field} in the module {module} contains value
{value}=$a : {module} ( {field} != null)
String( this.equalsIgnoreCase({value}) ) from $a.{field}
where the `field` is a `Set` of Strings.
Now, if I have two of these sentences in one rule, it obviously won't
work as the variable `$a` occurs twice. So I wanted to improve the rule
to make the variable, well, variable:
[when]The field {field} in the module {module} contains value
{value} as {a}={a} : {module} ( {field} != null)
String( this.equalsIgnoreCase({value}) ) from {a}.{field}
This doesn't work, I can't use the part `{a}.`, that breaks.
So, my questions are: Is there either a way to rewrite the rules or a
way to allow the `{variable}.` notation to work? Alternatively, is there
a `contains` operator which works case insensitive?
Thanks in advance
Dominik
___
rules-users mailing list
rules-users@lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Using 'from {x}.field' in DSL
Have you checked the expanded DRL? What does this line look like?
-W
On 12 June 2012 17:06, Sandjaja, Dominik dominik.sandj...@it-motive.dewrote:
**
I have the following Drools DSL sentence:
[when]The field {field} in the module {module} contains value
{value}=$a : {module} ( {field} != null)
String( this.equalsIgnoreCase({value}) ) from $a.{field}
where the `field` is a `Set` of Strings.
Now, if I have two of these sentences in one rule, it obviously won't
work as the variable `$a` occurs twice. So I wanted to improve the rule to
make the variable, well, variable:
[when]The field {field} in the module {module} contains value {value}
as {a}={a} : {module} ( {field} != null)
String( this.equalsIgnoreCase({value}) ) from {a}.{field}
This doesn't work, I can't use the part `{a}.`, that breaks.
So, my questions are: Is there either a way to rewrite the rules or a way
to allow the `{variable}.` notation to work? Alternatively, is there a
`contains` operator which works case insensitive?
Thanks in advance
Dominik
___
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
Re: [rules-users] Using 'from {x}.field' in DSL
There is no expanded DRL. If I take that line into the DSL, I can't even
validate the DSL and if I have the line in it, I can't select any DSL
statements for rules in Guvnor.
BTW, I am using Drools and Guvnor 5.4.0.
Von: rules-users-boun...@lists.jboss.org
[mailto:rules-users-boun...@lists.jboss.org] Im Auftrag von Wolfgang
Laun
Gesendet: Dienstag, 12. Juni 2012 17:31
An: Rules Users List
Betreff: Re: [rules-users] Using 'from {x}.field' in DSL
Have you checked the expanded DRL? What does this line look like?
-W
On 12 June 2012 17:06, Sandjaja, Dominik dominik.sandj...@it-motive.de
wrote:
I have the following Drools DSL sentence:
[when]The field {field} in the module {module} contains value
{value}=$a : {module} ( {field} != null)
String( this.equalsIgnoreCase({value}) ) from $a.{field}
where the `field` is a `Set` of Strings.
Now, if I have two of these sentences in one rule, it obviously won't
work as the variable `$a` occurs twice. So I wanted to improve the rule
to make the variable, well, variable:
[when]The field {field} in the module {module} contains value
{value} as {a}={a} : {module} ( {field} != null)
String( this.equalsIgnoreCase({value}) ) from {a}.{field}
This doesn't work, I can't use the part `{a}.`, that breaks.
So, my questions are: Is there either a way to rewrite the rules or a
way to allow the `{variable}.` notation to work? Alternatively, is there
a `contains` operator which works case insensitive?
Thanks in advance
Dominik
___
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
Re: [rules-users] Using 'from {x}.field' in DSL
There is a bug in the DSL parser: after '=', a couple of variable
references merely separated by a period isn't recognized.
As a workaround, use this:
[when][]The field {field} in the module {module} contains value
{value} as {abc} =
{abc}x : {module} ( {field} != null) String(
this.equalsIgnoreCase({value}) ) from {abc}x.{field}
-W
On 12/06/2012, Sandjaja, Dominik dominik.sandj...@it-motive.de wrote:
There is no expanded DRL. If I take that line into the DSL, I can't even
validate the DSL and if I have the line in it, I can't select any DSL
statements for rules in Guvnor.
BTW, I am using Drools and Guvnor 5.4.0.
Von: rules-users-boun...@lists.jboss.org
[mailto:rules-users-boun...@lists.jboss.org] Im Auftrag von Wolfgang
Laun
Gesendet: Dienstag, 12. Juni 2012 17:31
An: Rules Users List
Betreff: Re: [rules-users] Using 'from {x}.field' in DSL
Have you checked the expanded DRL? What does this line look like?
-W
On 12 June 2012 17:06, Sandjaja, Dominik dominik.sandj...@it-motive.de
wrote:
I have the following Drools DSL sentence:
[when]The field {field} in the module {module} contains value
{value}=$a : {module} ( {field} != null)
String( this.equalsIgnoreCase({value}) ) from $a.{field}
where the `field` is a `Set` of Strings.
Now, if I have two of these sentences in one rule, it obviously won't
work as the variable `$a` occurs twice. So I wanted to improve the rule
to make the variable, well, variable:
[when]The field {field} in the module {module} contains value
{value} as {a}={a} : {module} ( {field} != null)
String( this.equalsIgnoreCase({value}) ) from {a}.{field}
This doesn't work, I can't use the part `{a}.`, that breaks.
So, my questions are: Is there either a way to rewrite the rules or a
way to allow the `{variable}.` notation to work? Alternatively, is there
a `contains` operator which works case insensitive?
Thanks in advance
Dominik
___
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] Using from with named queries
Hello list, I'm using Drools.5.0.1 and I am trying to comprehend how to used the from keyword over a named query. I've googled this: http://blog.athico.com/2007/06/chained-from-accumulate-collect.html where it states: p : Person( ) Restaurant( food == p.favouriteFood ) from hs.getNamedQuery( list restaurants by postcode ) .setProperties( [ postcode : p.address.zipcode ] ) .list() If I understand the above correctly, the hs.getNamedQuery returns Restaurant objects using values from Person object. There are a couple of issues that I would like to resolve. Where and how is the hs object in hs.getNamedQuery statement is declared? If the Person object itself is the result of a NamedQuery, could the above statement be rewritten as: p : Person( ) from ps.getNamedQuery(return list of persons) Restaurant( food == p.favouriteFood ) from hs.getNamedQuery( list restaurants by postcode ) .setProperties( [ postcode : p.address.zipcode ] ) .list() Thank you for your time. -Stathis PS: Please take note that this is a newbie (in Drools) speaking. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Using from with named queries
Don't be too keen on using from in connection with queries. The simple reason is that queries return nothing but what rules can do just as well. Thus, getting all pairs of Person's and Restaurant's with matching food and zipcode, the straightforward LHS would be p:Person( $favFood : favouriteFood, $zip : address.zipcode ) r: Restaurant( food == $favFood, postcode == $zip ) from is required if the objects aren't facts but, for instance, elements in a collection contained in a fact. So, if you have Restaurants only as a ListRestaurant in a (say) City object, you would write p:Person( $favFood : favouriteFood, $zip : address.zipcode ) c: City( zipcodeSet contains $zip )# a person's home town r: Restaurant( food == $favFood, postcode == $zip ) from c.restaurantList assuming that a (biggish) City typically has many zipcodes. -W On 28 July 2010 15:06, rou...@di.uoa.gr wrote: Hello list, I'm using Drools.5.0.1 and I am trying to comprehend how to used the from keyword over a named query. I've googled this: http://blog.athico.com/2007/06/chained-from-accumulate-collect.html where it states: p : Person( ) Restaurant( food == p.favouriteFood ) from hs.getNamedQuery( list restaurants by postcode ) .setProperties( [ postcode : p.address.zipcode ] ) .list() If I understand the above correctly, the hs.getNamedQuery returns Restaurant objects using values from Person object. There are a couple of issues that I would like to resolve. Where and how is the hs object in hs.getNamedQuery statement is declared? If the Person object itself is the result of a NamedQuery, could the above statement be rewritten as: p : Person( ) from ps.getNamedQuery(return list of persons) Restaurant( food == p.favouriteFood ) from hs.getNamedQuery( list restaurants by postcode ) .setProperties( [ postcode : p.address.zipcode ] ) .list() Thank you for your time. -Stathis PS: Please take note that this is a newbie (in Drools) speaking. ___ 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
Re: [rules-users] Using from with named queries
Wolfang, Wolfgang Laun wrote: Don't be too keen on using from in connection with queries. The simple reason is that queries return nothing but what rules can do just as well. Thus, getting all pairs of Person's and Restaurant's with matching food and zipcode, the straightforward LHS would be p:Person( $favFood : favouriteFood, $zip : address.zipcode ) r: Restaurant( food == $favFood, postcode == $zip ) That was(is) my initial approach, and it is clearly the most straightforward one. Then I learned that the (theoretical) number of facts for Person objects the client has, is about 65 billion with the potential of doubling every year. Of course, they are in a database and I was looking into using the from keyword to do lookups in the database to retrieve the facts I need. By the way, I have looked into eval and I am not sure how to use it in respect to inline vs conditional element. Regardless, my primary issue is how to reason over the facts as records in a database. Any ideas will be greatly appreciated. -Stathis from is required if the objects aren't facts but, for instance, elements in a collection contained in a fact. So, if you have Restaurants only as a ListRestaurant in a (say) City object, you would write p:Person( $favFood : favouriteFood, $zip : address.zipcode ) c: City( zipcodeSet contains $zip )# a person's home town r: Restaurant( food == $favFood, postcode == $zip ) from c.restaurantList assuming that a (biggish) City typically has many zipcodes. -W On 28 July 2010 15:06, rou...@di.uoa.gr wrote: Hello list, I'm using Drools.5.0.1 and I am trying to comprehend how to used the from keyword over a named query. I've googled this: http://blog.athico.com/2007/06/chained-from-accumulate-collect.html where it states: p : Person( ) Restaurant( food == p.favouriteFood ) from hs.getNamedQuery( list restaurants by postcode ) .setProperties( [ postcode : p.address.zipcode ] ) .list() If I understand the above correctly, the hs.getNamedQuery returns Restaurant objects using values from Person object. There are a couple of issues that I would like to resolve. Where and how is the hs object in hs.getNamedQuery statement is declared? If the Person object itself is the result of a NamedQuery, could the above statement be rewritten as: p : Person( ) from ps.getNamedQuery(return list of persons) Restaurant( food == p.favouriteFood ) from hs.getNamedQuery( list restaurants by postcode ) .setProperties( [ postcode : p.address.zipcode ] ) .list() Thank you for your time. -Stathis PS: Please take note that this is a newbie (in Drools) speaking. ___ 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
Re: [rules-users] Using from
Hey Aziz,
Try like this:
when
$f : Father( age 45 )
exists( Son( age 5 ) from $f.sons )
then
// $f is older than 45 and has at least one son older than 5
end
Happy drooling,
[]s
Edson
2008/7/17 Aziz Boxwala [EMAIL PROTECTED]:
I have the following class structure.
Class GrandFather {
ListFather fathers;
public ListFather getFathers() {return fathers;}
}
Class Father {
int age;
ListSon sons;
public int getAge() {return age;}
public ListSon getSons() {return sons;}
}
Class Son {
int age;
public int getAge() {return age;}
}
I'd like to write a rule that finds all the Fathers who have age 45 and
have Sons where the son's age is greater than 5. But I can't figure out how
to use from to iterate over father first and then over son.
Any help will be greatly appreciated.
Thanks,
--Aziz
___
rules-users mailing list
rules-users@lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users
--
Edson Tirelli
JBoss Drools Core Development
JBoss, a division of Red Hat @ www.jboss.com
___
rules-users mailing list
rules-users@lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Using from
Marcus,
Thank you very much. I am trying that out.
--Aziz
- Original Message
From: Marcus Ilgner [EMAIL PROTECTED]
To: Rules Users List rules-users@lists.jboss.org
Sent: Thursday, July 17, 2008 2:35:55 PM
Subject: Re: [rules-users] Using from
Hi Aziz,
On Thu, Jul 17, 2008 at 8:26 PM, Aziz Boxwala [EMAIL PROTECTED] wrote:
I have the following class structure.
Class GrandFather {
ListFather fathers;
public ListFather getFathers() {return fathers;}
}
Class Father {
int age;
ListSon sons;
public int getAge() {return age;}
public ListSon getSons() {return sons;}
}
Class Son {
int age;
public int getAge() {return age;}
}
I'd like to write a rule that finds all the Fathers who have age 45 and
have Sons where the son's age is greater than 5. But I can't figure out how
to use from to iterate over father first and then over son.
Any help will be greatly appreciated.
Thanks,
--Aziz
Something like this?
rule FatherAndSon
when
$father : Father(age 45)
$son : Son(age 5) from $father.sons
then
// do something
end
Best regards
Marcus
___
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] Using from
I have the following class structure.
Class GrandFather {
ListFather fathers;
public ListFather getFathers() {return fathers;}
}
Class Father {
int age;
ListSon sons;
public int getAge() {return age;}
public ListSon getSons() {return sons;}
}
Class Son {
int age;
public int getAge() {return age;}
}
I'd like to write a rule that finds all the Fathers who have age 45 and have
Sons where the son's age is greater than 5. But I can't figure out how to use
from to iterate over father first and then over son.
Any help will be greatly appreciated.
Thanks,
--Aziz
___
rules-users mailing list
rules-users@lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Using from
Hi Aziz,
On Thu, Jul 17, 2008 at 8:26 PM, Aziz Boxwala [EMAIL PROTECTED] wrote:
I have the following class structure.
Class GrandFather {
ListFather fathers;
public ListFather getFathers() {return fathers;}
}
Class Father {
int age;
ListSon sons;
public int getAge() {return age;}
public ListSon getSons() {return sons;}
}
Class Son {
int age;
public int getAge() {return age;}
}
I'd like to write a rule that finds all the Fathers who have age 45 and
have Sons where the son's age is greater than 5. But I can't figure out how
to use from to iterate over father first and then over son.
Any help will be greatly appreciated.
Thanks,
--Aziz
Something like this?
rule FatherAndSon
when
$father : Father(age 45)
$son : Son(age 5) from $father.sons
then
// do something
end
Best regards
Marcus
___
rules-users mailing list
rules-users@lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] using from with not
Hello, Does anyone know why rule GoodBye2 below does not compile, but rule GoodBye1 does compile using Drools 4.0.0? The only difference is the not. Shouldn't this be valid? Thanks, -Chris package com.sample import com.sample.DroolsTest.Message; import com.sample.DroolsTest.Foo; import java.util.List; rule Hello World when m : Message( status == Message.HELLO, message : message ) then System.out.println( message ); m.setMessage( Goodbye cruel world ); m.setStatus( Message.GOODBYE ); update( m ); end rule GoodBye1 no-loop true when m : Message( status == Message.GOODBYE, message : message, $foos: foos ) Foo(id == 10) from $foos then System.out.println( message ); m.setMessage( message ); end rule GoodBye2 no-loop true when m : Message( status == Message.GOODBYE, message : message, $foos: foos ) not Foo(id == 10) from $foos then System.out.println( message ); m.setMessage( message ); end ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
RE: [rules-users] using from with not
What if you try not (Foo(id == 10) from $foos)? _ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Chris West Sent: 04 October 2007 16:59 To: Rules Users List Subject: Re: [rules-users] using from with not It does not compile. The error is: unknown:32:20 mismatched token: [EMAIL PROTECTED],682:685='from',38,32:20]; expecting type THEN -Chris On 10/4/07, Anstis, Michael (M.) [EMAIL PROTECTED] wrote: Does it not compile (in which case can you post the error)? Or does it not activate? _ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Chris West Sent: 04 October 2007 16:03 To: Rules Users List Subject: [rules-users] using from with not Hello, Does anyone know why rule GoodBye2 below does not compile, but rule GoodBye1 does compile using Drools 4.0.0? The only difference is the not. Shouldn't this be valid? Thanks, -Chris package com.sample import com.sample.DroolsTest.Message; import com.sample.DroolsTest.Foo; import java.util.List; rule Hello World when m : Message( status == Message.HELLO, message : message ) then System.out.println( message ); m.setMessage( Goodbye cruel world ); m.setStatus( Message.GOODBYE ); update( m ); end rule GoodBye1 no-loop true when m : Message( status == Message.GOODBYE, message : message, $foos: foos ) Foo(id == 10) from $foos then System.out.println ( message ); m.setMessage( message ); end rule GoodBye2 no-loop true when m : Message( status == Message.GOODBYE, message : message, $foos: foos ) not Foo(id == 10) from $foos then System.out.println( message ); m.setMessage( message ); end ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users smime.p7s Description: S/MIME cryptographic signature ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] using from with not
That makes it compile, but during the run I get: java.lang.NullPointerException at org.drools.reteoo.builder.BuildUtils.createBetaNodeConstraint( BuildUtils.java:168) at org.drools.reteoo.builder.GroupElementBuilder$NotBuilder.build( GroupElementBuilder.java:231) at org.drools.reteoo.builder.GroupElementBuilder.build( GroupElementBuilder.java:70) at org.drools.reteoo.builder.GroupElementBuilder$AndBuilder.build( GroupElementBuilder.java:112) at org.drools.reteoo.builder.GroupElementBuilder.build( GroupElementBuilder.java:70) at org.drools.reteoo.builder.ReteooRuleBuilder.addSubRule( ReteooRuleBuilder.java:136) at org.drools.reteoo.builder.ReteooRuleBuilder.addRule( ReteooRuleBuilder.java:109) at org.drools.reteoo.ReteooBuilder.addRule(ReteooBuilder.java:116) at org.drools.reteoo.ReteooRuleBase.addRule(ReteooRuleBase.java:262) at org.drools.common.AbstractRuleBase.addPackage(AbstractRuleBase.java :333) at com.sample.DroolsTest.readRule(DroolsTest.java:66) at com.sample.DroolsTest.main(DroolsTest.java:23) -Chris On 10/4/07, Anstis, Michael (M.) [EMAIL PROTECTED] wrote: What if you try not (Foo(id == 10) from $foos)? -- *From:* [EMAIL PROTECTED] [mailto: [EMAIL PROTECTED] *On Behalf Of *Chris West *Sent:* 04 October 2007 16:59 *To:* Rules Users List *Subject:* Re: [rules-users] using from with not It does not compile. The error is: unknown:32:20 mismatched token: [EMAIL PROTECTED],682:685='from',38,32:20]; expecting type THEN -Chris On 10/4/07, Anstis, Michael (M.) [EMAIL PROTECTED] wrote: Does it not compile (in which case can you post the error)? Or does it not activate? -- *From:* [EMAIL PROTECTED] [mailto: [EMAIL PROTECTED] *On Behalf Of *Chris West *Sent:* 04 October 2007 16:03 *To:* Rules Users List *Subject:* [rules-users] using from with not Hello, Does anyone know why rule GoodBye2 below does not compile, but rule GoodBye1 does compile using Drools 4.0.0? The only difference is the not. Shouldn't this be valid? Thanks, -Chris package com.sample import com.sample.DroolsTest.Message; import com.sample.DroolsTest.Foo; import java.util.List; rule Hello World when m : Message( status == Message.HELLO, message : message ) then System.out.println( message ); m.setMessage( Goodbye cruel world ); m.setStatus( Message.GOODBYE ); update( m ); end rule GoodBye1 no-loop true when m : Message( status == Message.GOODBYE, message : message, $foos: foos ) Foo(id == 10) from $foos then System.out.println ( message ); m.setMessage( message ); end rule GoodBye2 no-loop true when m : Message( status == Message.GOODBYE, message : message, $foos: foos ) not Foo(id == 10) from $foos then System.out.println( message ); m.setMessage( message ); end ___ 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 mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] using from with not
From the manual: A not statement must be followed by parentheses around the pattern that it applies to. In the simplest case of a single pattern (like below) you can omit the parentheses. We improved the docs for the next version. Hope it is clearer now. But Michael got it right. []s Edson 2007/10/4, Anstis, Michael (M.) [EMAIL PROTECTED]: What if you try not (Foo(id == 10) from $foos)? -- *From:* [EMAIL PROTECTED] [mailto: [EMAIL PROTECTED] *On Behalf Of *Chris West *Sent:* 04 October 2007 16:59 *To:* Rules Users List *Subject:* Re: [rules-users] using from with not It does not compile. The error is: unknown:32:20 mismatched token: [EMAIL PROTECTED],682:685='from',38,32:20]; expecting type THEN -Chris On 10/4/07, Anstis, Michael (M.) [EMAIL PROTECTED] wrote: Does it not compile (in which case can you post the error)? Or does it not activate? -- *From:* [EMAIL PROTECTED] [mailto: [EMAIL PROTECTED] *On Behalf Of *Chris West *Sent:* 04 October 2007 16:03 *To:* Rules Users List *Subject:* [rules-users] using from with not Hello, Does anyone know why rule GoodBye2 below does not compile, but rule GoodBye1 does compile using Drools 4.0.0? The only difference is the not. Shouldn't this be valid? Thanks, -Chris package com.sample import com.sample.DroolsTest.Message; import com.sample.DroolsTest.Foo; import java.util.List; rule Hello World when m : Message( status == Message.HELLO, message : message ) then System.out.println( message ); m.setMessage( Goodbye cruel world ); m.setStatus( Message.GOODBYE ); update( m ); end rule GoodBye1 no-loop true when m : Message( status == Message.GOODBYE, message : message, $foos: foos ) Foo(id == 10) from $foos then System.out.println ( message ); m.setMessage( message ); end rule GoodBye2 no-loop true when m : Message( status == Message.GOODBYE, message : message, $foos: foos ) not Foo(id == 10) from $foos then System.out.println( message ); m.setMessage( message ); end ___ 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 -- Edson Tirelli Software Engineer - JBoss Rules Core Developer Office: +55 11 3529-6000 Mobile: +55 11 9287-5646 JBoss, a division of Red Hat @ www.jboss.com ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] using from with not
Ok, the parenthesis makes sense. But when I enclose the pattern as Michael suggested, it gets a runtime error trying to parse. I attached a sample project illustrating this in an earlier response. So isn't there still a problem? -Chris On 10/4/07, Edson Tirelli [EMAIL PROTECTED] wrote: From the manual: A not statement must be followed by parentheses around the pattern that it applies to. In the simplest case of a single pattern (like below) you can omit the parentheses. We improved the docs for the next version. Hope it is clearer now. But Michael got it right. []s Edson 2007/10/4, Anstis, Michael (M.) [EMAIL PROTECTED]: What if you try not (Foo(id == 10) from $foos) ? -- *From:* [EMAIL PROTECTED] [mailto: [EMAIL PROTECTED] *On Behalf Of *Chris West *Sent:* 04 October 2007 16:59 *To:* Rules Users List *Subject:* Re: [rules-users] using from with not It does not compile. The error is: unknown:32:20 mismatched token: [EMAIL PROTECTED],682:685='from',38,32:20]; expecting type THEN -Chris On 10/4/07, Anstis, Michael (M.) [EMAIL PROTECTED] wrote: Does it not compile (in which case can you post the error)? Or does it not activate? -- *From:* [EMAIL PROTECTED] [mailto: [EMAIL PROTECTED] *On Behalf Of *Chris West *Sent:* 04 October 2007 16:03 *To:* Rules Users List *Subject:* [rules-users] using from with not Hello, Does anyone know why rule GoodBye2 below does not compile, but rule GoodBye1 does compile using Drools 4.0.0? The only difference is the not. Shouldn't this be valid? Thanks, -Chris package com.sample import com.sample.DroolsTest.Message; import com.sample.DroolsTest.Foo; import java.util.List; rule Hello World when m : Message( status == Message.HELLO, message : message ) then System.out.println( message ); m.setMessage( Goodbye cruel world ); m.setStatus( Message.GOODBYE ); update( m ); end rule GoodBye1 no-loop true when m : Message( status == Message.GOODBYE, message : message, $foos: foos ) Foo(id == 10) from $foos then System.out.println ( message ); m.setMessage( message ); end rule GoodBye2 no-loop true when m : Message( status == Message.GOODBYE, message : message, $foos: foos ) not Foo(id == 10) from $foos then System.out.println( message ); m.setMessage( message ); end ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- Edson Tirelli Software Engineer - JBoss Rules Core Developer Office: +55 11 3529-6000 Mobile: +55 11 9287-5646 JBoss, a division of Red Hat @ www.jboss.com ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] using from with not
Thank you for the snapshot build. It does seem to fix the problem (and also the bugs you mentioned you fixed). -Chris On 10/4/07, Edson Tirelli [EMAIL PROTECTED] wrote: Chris, I just tested your example and it works fine in 4.0.2.SNAPSHOT. We fixed a long list of bugs from 4.0.0 to 4.0.1/4.0.2, so I guess this is one of them. My suggestion for you is: since you will need to update anyway and we fixed the bugs you reported in JIRA, get and test the latest binary from here: https://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/trunk/target/ The only changes we expect to do in it for the 4.0.2 release are IDE changes, so it is very close to what you will get when it is released. []s Edson 2007/10/4, Chris West [EMAIL PROTECTED]: Attached is the eclipse project that illustrates the problem. I use Drools 4.0.0, and have not tried this code with 4.0.1 (since bugs in it keep me from upgrading until 4.0.2). -Chris On 10/4/07, Chris West [EMAIL PROTECTED] wrote: That makes it compile, but during the run I get: java.lang.NullPointerException at org.drools.reteoo.builder.BuildUtils.createBetaNodeConstraint( BuildUtils.java:168) at org.drools.reteoo.builder.GroupElementBuilder$NotBuilder.build( GroupElementBuilder.java:231) at org.drools.reteoo.builder.GroupElementBuilder.build( GroupElementBuilder.java:70) at org.drools.reteoo.builder.GroupElementBuilder$AndBuilder.build( GroupElementBuilder.java:112) at org.drools.reteoo.builder.GroupElementBuilder.build( GroupElementBuilder.java:70) at org.drools.reteoo.builder.ReteooRuleBuilder.addSubRule( ReteooRuleBuilder.java:136) at org.drools.reteoo.builder.ReteooRuleBuilder.addRule ( ReteooRuleBuilder.java:109) at org.drools.reteoo.ReteooBuilder.addRule(ReteooBuilder.java:116) at org.drools.reteoo.ReteooRuleBase.addRule(ReteooRuleBase.java :262) at org.drools.common.AbstractRuleBase.addPackage ( AbstractRuleBase.java:333) at com.sample.DroolsTest.readRule(DroolsTest.java:66) at com.sample.DroolsTest.main(DroolsTest.java:23) -Chris On 10/4/07, Anstis, Michael (M.) [EMAIL PROTECTED] wrote: What if you try not (Foo(id == 10) from $foos) ? -- *From:* [EMAIL PROTECTED] [mailto: [EMAIL PROTECTED] *On Behalf Of *Chris West *Sent:* 04 October 2007 16:59 *To:* Rules Users List *Subject:* Re: [rules-users] using from with not It does not compile. The error is: unknown:32:20 mismatched token: [EMAIL PROTECTED],682:685='from',38,32:20]; expecting type THEN -Chris On 10/4/07, Anstis, Michael (M.) [EMAIL PROTECTED] wrote: Does it not compile (in which case can you post the error)? Or does it not activate? -- *From:* [EMAIL PROTECTED] [mailto: [EMAIL PROTECTED] *On Behalf Of *Chris West *Sent:* 04 October 2007 16:03 *To:* Rules Users List *Subject:* [rules-users] using from with not Hello, Does anyone know why rule GoodBye2 below does not compile, but rule GoodBye1 does compile using Drools 4.0.0? The only difference is the not. Shouldn't this be valid? Thanks, -Chris package com.sample import com.sample.DroolsTest.Message; import com.sample.DroolsTest.Foo; import java.util.List; rule Hello World when m : Message( status == Message.HELLO, message : message ) then System.out.println( message ); m.setMessage( Goodbye cruel world ); m.setStatus( Message.GOODBYE ); update( m ); end rule GoodBye1 no-loop true when m : Message( status == Message.GOODBYE, message : message, $foos: foos ) Foo(id == 10) from $foos then System.out.println ( message ); m.setMessage( message ); end rule GoodBye2 no-loop true when m : Message( status == Message.GOODBYE, message : message, $foos: foos ) not Foo(id == 10) from $foos then System.out.println( message ); m.setMessage( message ); end ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules
Re: [rules-users] using from with not
With 4.0.2, I know of no showstopper bugs. But until Edson gave me the SNAPSHOT build today, I did not have 4.0.2. Thanks, -Chris On 10/4/07, Mark Proctor [EMAIL PROTECTED] wrote: we still have bugs which stop you upgrading? Mark Chris West wrote: Attached is the eclipse project that illustrates the problem. I use Drools 4.0.0, and have not tried this code with 4.0.1 (since bugs in it keep me from upgrading until 4.0.2). -Chris On 10/4/07, Chris West [EMAIL PROTECTED] wrote: That makes it compile, but during the run I get: java.lang.NullPointerException at org.drools.reteoo.builder.BuildUtils.createBetaNodeConstraint( BuildUtils.java:168) at org.drools.reteoo.builder.GroupElementBuilder$NotBuilder.build ( GroupElementBuilder.java:231) at org.drools.reteoo.builder.GroupElementBuilder.build( GroupElementBuilder.java:70) at org.drools.reteoo.builder.GroupElementBuilder$AndBuilder.build( GroupElementBuilder.java:112) at org.drools.reteoo.builder.GroupElementBuilder.build( GroupElementBuilder.java:70) at org.drools.reteoo.builder.ReteooRuleBuilder.addSubRule( ReteooRuleBuilder.java:136) at org.drools.reteoo.builder.ReteooRuleBuilder.addRule ( ReteooRuleBuilder.java:109) at org.drools.reteoo.ReteooBuilder.addRule(ReteooBuilder.java:116) at org.drools.reteoo.ReteooRuleBase.addRule(ReteooRuleBase.java:262) at org.drools.common.AbstractRuleBase.addPackage ( AbstractRuleBase.java:333) at com.sample.DroolsTest.readRule(DroolsTest.java:66) at com.sample.DroolsTest.main(DroolsTest.java:23) -Chris On 10/4/07, Anstis, Michael (M.) [EMAIL PROTECTED] wrote: What if you try not (Foo(id == 10) from $foos) ? -- *From:* [EMAIL PROTECTED] [mailto: [EMAIL PROTECTED] *On Behalf Of *Chris West *Sent:* 04 October 2007 16:59 *To:* Rules Users List *Subject:* Re: [rules-users] using from with not It does not compile. The error is: unknown:32:20 mismatched token: [EMAIL PROTECTED],682:685='from',38,32:20]; expecting type THEN -Chris On 10/4/07, Anstis, Michael (M.) [EMAIL PROTECTED] wrote: Does it not compile (in which case can you post the error)? Or does it not activate? -- *From:* [EMAIL PROTECTED] [mailto: [EMAIL PROTECTED] *On Behalf Of *Chris West *Sent:* 04 October 2007 16:03 *To:* Rules Users List *Subject:* [rules-users] using from with not Hello, Does anyone know why rule GoodBye2 below does not compile, but rule GoodBye1 does compile using Drools 4.0.0? The only difference is the not. Shouldn't this be valid? Thanks, -Chris package com.sample import com.sample.DroolsTest.Message; import com.sample.DroolsTest.Foo; import java.util.List; rule Hello World when m : Message( status == Message.HELLO, message : message ) then System.out.println( message ); m.setMessage( Goodbye cruel world ); m.setStatus( Message.GOODBYE ); update( m ); end rule GoodBye1 no-loop true when m : Message( status == Message.GOODBYE, message : message, $foos: foos ) Foo(id == 10) from $foos then System.out.println ( message ); m.setMessage( message ); end rule GoodBye2 no-loop true when m : Message( status == Message.GOODBYE, message : message, $foos: foos ) not Foo(id == 10) from $foos then System.out.println( message ); m.setMessage( message ); end ___ 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 mailing list [EMAIL PROTECTED]://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 mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
