1:32 a.m.
Hi,
I got the following rule problem.
The rule is like :
1. | rule "Rule1"
2. | dialect "mvel"
3. | when
4. | ad : ApplicationData( age == "null" , age.size() == 0)
5. | then
6. | ad.setReturnMsg( "age should not be null or empty" );
7. | end
where setReturnMsg is a method of ApplicationData Fact();
However, I got the validation error :
[Rule1] [ERR 101] Line 4:49 no viable alternative at input ')' in rule
"Rule1" in pattern ApplicationData
[Rule1] [ERR 102] Line 4:51 mismatched input '==' expecting ')' in
rule "Rule1" in pattern ApplicationData
Please help what the problem is.
Thanks
2:07 a.m.
You can't use a method call as the left hand side operand in a constraint;
thus
age.size() == 0
is not correct.
Do you really mean
age == "null"
Probably
ApplicationData( age == null || age == "" )
is the right thing to do, provided that ApplicationData.age is a String.
-W
On 25 March 2011 17:32, Benson Fung <benson.redhat(a)gmail.com> wrote:
Hi,
I got the following rule problem.
The rule is like :
1. | rule "Rule1"
2. | dialect "mvel"
3. | when
4. | ad : ApplicationData( age == "null" , age.size() ==
0)
5. | then
6. | ad.setReturnMsg( "age should not be null or empty"
);
7. | end
where setReturnMsg is a method of ApplicationData Fact();
However, I got the validation error :
[Rule1] [ERR 101] Line 4:49 no viable alternative at input ')' in rule
"Rule1" in pattern ApplicationData
[Rule1] [ERR 102] Line 4:51 mismatched input '==' expecting ')' in
rule "Rule1" in pattern ApplicationData
Please help what the problem is.
Thanks
_______________________________________________
rules-users mailing list
rules-users(a)lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users
2:09 a.m.
Thank you very much.
2011/3/26 Wolfgang Laun <wolfgang.laun(a)gmail.com>:
You can't use a method call as the left hand side operand in a
constraint;
thus
age.size() == 0
is not correct.
Do you really mean
age == "null"
Probably
ApplicationData( age == null || age == "" )
is the right thing to do, provided that ApplicationData.age is a String.
-W
On 25 March 2011 17:32, Benson Fung <benson.redhat(a)gmail.com> wrote:
>
> Hi,
>
> I got the following rule problem.
>
> The rule is like :
>
> 1. | rule "Rule1"
> 2. | dialect "mvel"
> 3. | when
> 4. | ad : ApplicationData( age == "null" , age.size()
> == 0)
> 5. | then
> 6. | ad.setReturnMsg( "age should not be null or empty"
> );
> 7. | end
>
> where setReturnMsg is a method of ApplicationData Fact();
>
> However, I got the validation error :
>
> [Rule1] [ERR 101] Line 4:49 no viable alternative at input ')' in rule
> "Rule1" in pattern ApplicationData
> [Rule1] [ERR 102] Line 4:51 mismatched input '==' expecting ')' in
> rule "Rule1" in pattern ApplicationData
>
> Please help what the problem is.
>
>
> Thanks
> _______________________________________________
> rules-users mailing list
> rules-users(a)lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
_______________________________________________
rules-users mailing list
rules-users(a)lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users
2:10 a.m.
yeah... that it's age? an int?
2011/3/25 Wolfgang Laun <wolfgang.laun(a)gmail.com>
You can't use a method call as the left hand side operand in a
constraint;
thus
age.size() == 0
is not correct.
Do you really mean
age == "null"
Probably
ApplicationData( age == null || age == "" )
is the right thing to do, provided that ApplicationData.age is a String.
-W
On 25 March 2011 17:32, Benson Fung <benson.redhat(a)gmail.com> wrote:
> Hi,
>
> I got the following rule problem.
>
> The rule is like :
>
> 1. | rule "Rule1"
> 2. | dialect "mvel"
> 3. | when
> 4. | ad : ApplicationData( age == "null" , age.size()
> == 0)
> 5. | then
> 6. | ad.setReturnMsg( "age should not be null or empty"
> );
> 7. | end
>
> where setReturnMsg is a method of ApplicationData Fact();
>
> However, I got the validation error :
>
> [Rule1] [ERR 101] Line 4:49 no viable alternative at input ')' in rule
> "Rule1" in pattern ApplicationData
> [Rule1] [ERR 102] Line 4:51 mismatched input '==' expecting ')' in
> rule "Rule1" in pattern ApplicationData
>
> Please help what the problem is.
>
>
> Thanks
> _______________________________________________
> rules-users mailing list
> rules-users(a)lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
>
_______________________________________________
rules-users mailing list
rules-users(a)lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users
--
- CTO @ http://www.plugtree.com
- MyJourney @ http://salaboy.wordpress.com
- Co-Founder @ http://www.jbug.com.ar
- Salatino "Salaboy" Mauricio -
2:18 a.m.
suppose String first
2011/3/26 Mauricio Salatino <salaboy(a)gmail.com>:
yeah... that it's age? an int?
2011/3/25 Wolfgang Laun <wolfgang.laun(a)gmail.com>
>
> You can't use a method call as the left hand side operand in a constraint;
> thus
> age.size() == 0
> is not correct.
>
> Do you really mean
> age == "null"
>
> Probably
> ApplicationData( age == null || age == "" )
> is the right thing to do, provided that ApplicationData.age is a String.
>
> -W
>
> On 25 March 2011 17:32, Benson Fung <benson.redhat(a)gmail.com> wrote:
>>
>> Hi,
>>
>> I got the following rule problem.
>>
>> The rule is like :
>>
>> 1. | rule "Rule1"
>> 2. | dialect "mvel"
>> 3. | when
>> 4. | ad : ApplicationData( age == "null" ,
age.size()
>> == 0)
>> 5. | then
>> 6. | ad.setReturnMsg( "age should not be null or
>> empty" );
>> 7. | end
>>
>> where setReturnMsg is a method of ApplicationData Fact();
>>
>> However, I got the validation error :
>>
>> [Rule1] [ERR 101] Line 4:49 no viable alternative at input ')' in rule
>> "Rule1" in pattern ApplicationData
>> [Rule1] [ERR 102] Line 4:51 mismatched input '==' expecting ')'
in
>> rule "Rule1" in pattern ApplicationData
>>
>> Please help what the problem is.
>>
>>
>> Thanks
>> _______________________________________________
>> rules-users mailing list
>> rules-users(a)lists.jboss.org
>> https://lists.jboss.org/mailman/listinfo/rules-users
>
>
> _______________________________________________
> rules-users mailing list
> rules-users(a)lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
>
--
- CTO @ http://www.plugtree.com
- MyJourney @ http://salaboy.wordpress.com
- Co-Founder @ http://www.jbug.com.ar
- Salatino "Salaboy" Mauricio -
_______________________________________________
rules-users mailing list
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2:17 a.m.
Hi Wolfgang,
I managed to author this rule(ApplicationData( age == null || age ==
"" )) via Technical Rules editor of BRMS.
However, I cannot create this rule via Business Rule Guided Editor of BRMS.
Could you let me know how?
Thanks
2011/3/26 Wolfgang Laun <wolfgang.laun(a)gmail.com>:
You can't use a method call as the left hand side operand in a
constraint;
thus
age.size() == 0
is not correct.
Do you really mean
age == "null"
Probably
ApplicationData( age == null || age == "" )
is the right thing to do, provided that ApplicationData.age is a String.
-W
On 25 March 2011 17:32, Benson Fung <benson.redhat(a)gmail.com> wrote:
>
> Hi,
>
> I got the following rule problem.
>
> The rule is like :
>
> 1. | rule "Rule1"
> 2. | dialect "mvel"
> 3. | when
> 4. | ad : ApplicationData( age == "null" , age.size()
> == 0)
> 5. | then
> 6. | ad.setReturnMsg( "age should not be null or empty"
> );
> 7. | end
>
> where setReturnMsg is a method of ApplicationData Fact();
>
> However, I got the validation error :
>
> [Rule1] [ERR 101] Line 4:49 no viable alternative at input ')' in rule
> "Rule1" in pattern ApplicationData
> [Rule1] [ERR 102] Line 4:51 mismatched input '==' expecting ')' in
> rule "Rule1" in pattern ApplicationData
>
> Please help what the problem is.
>
>
> Thanks
> _______________________________________________
> rules-users mailing list
> rules-users(a)lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
_______________________________________________
rules-users mailing list
rules-users(a)lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users
2:25 a.m.
Sorry, I don't use guided editors.
-W
On 25 March 2011 18:17, Benson Fung <benson.redhat(a)gmail.com> wrote:
Hi Wolfgang,
I managed to author this rule(ApplicationData( age == null || age ==
"" )) via Technical Rules editor of BRMS.
However, I cannot create this rule via Business Rule Guided Editor of BRMS.
Could you let me know how?
Thanks
2011/3/26 Wolfgang Laun <wolfgang.laun(a)gmail.com>:
> You can't use a method call as the left hand side operand in a
constraint;
> thus
> age.size() == 0
> is not correct.
>
> Do you really mean
> age == "null"
>
> Probably
> ApplicationData( age == null || age == "" )
> is the right thing to do, provided that ApplicationData.age is a String.
>
> -W
>
> On 25 March 2011 17:32, Benson Fung <benson.redhat(a)gmail.com> wrote:
>>
>> Hi,
>>
>> I got the following rule problem.
>>
>> The rule is like :
>>
>> 1. | rule "Rule1"
>> 2. | dialect "mvel"
>> 3. | when
>> 4. | ad : ApplicationData( age == "null" ,
age.size()
>> == 0)
>> 5. | then
>> 6. | ad.setReturnMsg( "age should not be null or
empty"
>> );
>> 7. | end
>>
>> where setReturnMsg is a method of ApplicationData Fact();
>>
>> However, I got the validation error :
>>
>> [Rule1] [ERR 101] Line 4:49 no viable alternative at input ')' in rule
>> "Rule1" in pattern ApplicationData
>> [Rule1] [ERR 102] Line 4:51 mismatched input '==' expecting ')'
in
>> rule "Rule1" in pattern ApplicationData
>>
>> Please help what the problem is.
>>
>>
>> Thanks
>> _______________________________________________
>> rules-users mailing list
>> rules-users(a)lists.jboss.org
>> https://lists.jboss.org/mailman/listinfo/rules-users
>
>
> _______________________________________________
> rules-users mailing list
> rules-users(a)lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
>
>
_______________________________________________
rules-users mailing list
rules-users(a)lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users
2:37 a.m.
If the age is String type, can I use Integer.parseInt(age) to change
to integer and then evaluate it?
like
when
ad : ApplicationData(Integer.parseInt(age) < 0)
then
ad.setReturnMsg("age should not be negative 0")
end
2011/3/26 Wolfgang Laun <wolfgang.laun(a)gmail.com>:
Sorry, I don't use guided editors.
-W
On 25 March 2011 18:17, Benson Fung <benson.redhat(a)gmail.com> wrote:
>
> Hi Wolfgang,
>
> I managed to author this rule(ApplicationData( age == null || age ==
> "" )) via Technical Rules editor of BRMS.
> However, I cannot create this rule via Business Rule Guided Editor of
> BRMS.
>
> Could you let me know how?
>
>
> Thanks
>
>
>
> 2011/3/26 Wolfgang Laun <wolfgang.laun(a)gmail.com>:
> > You can't use a method call as the left hand side operand in a
> > constraint;
> > thus
> > age.size() == 0
> > is not correct.
> >
> > Do you really mean
> > age == "null"
> >
> > Probably
> > ApplicationData( age == null || age == "" )
> > is the right thing to do, provided that ApplicationData.age is a String.
> >
> > -W
> >
> > On 25 March 2011 17:32, Benson Fung <benson.redhat(a)gmail.com> wrote:
> >>
> >> Hi,
> >>
> >> I got the following rule problem.
> >>
> >> The rule is like :
> >>
> >> 1. | rule "Rule1"
> >> 2. | dialect "mvel"
> >> 3. | when
> >> 4. | ad : ApplicationData( age == "null" ,
> >> age.size()
> >> == 0)
> >> 5. | then
> >> 6. | ad.setReturnMsg( "age should not be null or
> >> empty"
> >> );
> >> 7. | end
> >>
> >> where setReturnMsg is a method of ApplicationData Fact();
> >>
> >> However, I got the validation error :
> >>
> >> [Rule1] [ERR 101] Line 4:49 no viable alternative at input ')' in
rule
> >> "Rule1" in pattern ApplicationData
> >> [Rule1] [ERR 102] Line 4:51 mismatched input '==' expecting
')' in
> >> rule "Rule1" in pattern ApplicationData
> >>
> >> Please help what the problem is.
> >>
> >>
> >> Thanks
> >> _______________________________________________
> >> rules-users mailing list
> >> rules-users(a)lists.jboss.org
> >> https://lists.jboss.org/mailman/listinfo/rules-users
> >
> >
> > _______________________________________________
> > rules-users mailing list
> > rules-users(a)lists.jboss.org
> > https://lists.jboss.org/mailman/listinfo/rules-users
> >
> >
>
> _______________________________________________
> rules-users mailing list
> rules-users(a)lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
_______________________________________________
rules-users mailing list
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2:40 a.m.
If it's stored in a fact field of type int: yes.
The way you write it: no.
-W
On 25 March 2011 18:37, Benson Fung <benson.redhat(a)gmail.com> wrote:
If the age is String type, can I use Integer.parseInt(age) to change
to integer and then evaluate it?
like
when
ad : ApplicationData(Integer.parseInt(age) < 0)
then
ad.setReturnMsg("age should not be negative 0")
end
2011/3/26 Wolfgang Laun <wolfgang.laun(a)gmail.com>:
> Sorry, I don't use guided editors.
> -W
>
> On 25 March 2011 18:17, Benson Fung <benson.redhat(a)gmail.com> wrote:
>>
>> Hi Wolfgang,
>>
>> I managed to author this rule(ApplicationData( age == null || age ==
>> "" )) via Technical Rules editor of BRMS.
>> However, I cannot create this rule via Business Rule Guided Editor of
>> BRMS.
>>
>> Could you let me know how?
>>
>>
>> Thanks
>>
>>
>>
>> 2011/3/26 Wolfgang Laun <wolfgang.laun(a)gmail.com>:
>> > You can't use a method call as the left hand side operand in a
>> > constraint;
>> > thus
>> > age.size() == 0
>> > is not correct.
>> >
>> > Do you really mean
>> > age == "null"
>> >
>> > Probably
>> > ApplicationData( age == null || age == "" )
>> > is the right thing to do, provided that ApplicationData.age is a
String.
>> >
>> > -W
>> >
>> > On 25 March 2011 17:32, Benson Fung <benson.redhat(a)gmail.com> wrote:
>> >>
>> >> Hi,
>> >>
>> >> I got the following rule problem.
>> >>
>> >> The rule is like :
>> >>
>> >> 1. | rule "Rule1"
>> >> 2. | dialect "mvel"
>> >> 3. | when
>> >> 4. | ad : ApplicationData( age == "null"
,
>> >> age.size()
>> >> == 0)
>> >> 5. | then
>> >> 6. | ad.setReturnMsg( "age should not be null
or
>> >> empty"
>> >> );
>> >> 7. | end
>> >>
>> >> where setReturnMsg is a method of ApplicationData Fact();
>> >>
>> >> However, I got the validation error :
>> >>
>> >> [Rule1] [ERR 101] Line 4:49 no viable alternative at input ')'
in
rule
>> >> "Rule1" in pattern ApplicationData
>> >> [Rule1] [ERR 102] Line 4:51 mismatched input '==' expecting
')' in
>> >> rule "Rule1" in pattern ApplicationData
>> >>
>> >> Please help what the problem is.
>> >>
>> >>
>> >> Thanks
>> >> _______________________________________________
>> >> rules-users mailing list
>> >> rules-users(a)lists.jboss.org
>> >> https://lists.jboss.org/mailman/listinfo/rules-users
>> >
>> >
>> > _______________________________________________
>> > rules-users mailing list
>> > rules-users(a)lists.jboss.org
>> > https://lists.jboss.org/mailman/listinfo/rules-users
>> >
>> >
>>
>> _______________________________________________
>> rules-users mailing list
>> rules-users(a)lists.jboss.org
>> https://lists.jboss.org/mailman/listinfo/rules-users
>
>
> _______________________________________________
> rules-users mailing list
> rules-users(a)lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
>
>
_______________________________________________
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2:46 a.m.
so how can I change it to integer in the rule?
2011/3/26 Wolfgang Laun <wolfgang.laun(a)gmail.com>:
If it's stored in a fact field of type int: yes.
The way you write it: no.
-W
On 25 March 2011 18:37, Benson Fung <benson.redhat(a)gmail.com> wrote:
>
> If the age is String type, can I use Integer.parseInt(age) to change
> to integer and then evaluate it?
>
> like
>
> when
> ad : ApplicationData(Integer.parseInt(age) < 0)
> then
> ad.setReturnMsg("age should not be negative 0")
> end
>
>
>
>
> 2011/3/26 Wolfgang Laun <wolfgang.laun(a)gmail.com>:
> > Sorry, I don't use guided editors.
> > -W
> >
> > On 25 March 2011 18:17, Benson Fung <benson.redhat(a)gmail.com> wrote:
> >>
> >> Hi Wolfgang,
> >>
> >> I managed to author this rule(ApplicationData( age == null || age ==
> >> "" )) via Technical Rules editor of BRMS.
> >> However, I cannot create this rule via Business Rule Guided Editor of
> >> BRMS.
> >>
> >> Could you let me know how?
> >>
> >>
> >> Thanks
> >>
> >>
> >>
> >> 2011/3/26 Wolfgang Laun <wolfgang.laun(a)gmail.com>:
> >> > You can't use a method call as the left hand side operand in a
> >> > constraint;
> >> > thus
> >> > age.size() == 0
> >> > is not correct.
> >> >
> >> > Do you really mean
> >> > age == "null"
> >> >
> >> > Probably
> >> > ApplicationData( age == null || age == "" )
> >> > is the right thing to do, provided that ApplicationData.age is a
> >> > String.
> >> >
> >> > -W
> >> >
> >> > On 25 March 2011 17:32, Benson Fung <benson.redhat(a)gmail.com>
wrote:
> >> >>
> >> >> Hi,
> >> >>
> >> >> I got the following rule problem.
> >> >>
> >> >> The rule is like :
> >> >>
> >> >> 1. | rule "Rule1"
> >> >> 2. | dialect "mvel"
> >> >> 3. | when
> >> >> 4. | ad : ApplicationData( age ==
"null" ,
> >> >> age.size()
> >> >> == 0)
> >> >> 5. | then
> >> >> 6. | ad.setReturnMsg( "age should not be
null or
> >> >> empty"
> >> >> );
> >> >> 7. | end
> >> >>
> >> >> where setReturnMsg is a method of ApplicationData Fact();
> >> >>
> >> >> However, I got the validation error :
> >> >>
> >> >> [Rule1] [ERR 101] Line 4:49 no viable alternative at input
')' in
> >> >> rule
> >> >> "Rule1" in pattern ApplicationData
> >> >> [Rule1] [ERR 102] Line 4:51 mismatched input '==' expecting
')' in
> >> >> rule "Rule1" in pattern ApplicationData
> >> >>
> >> >> Please help what the problem is.
> >> >>
> >> >>
> >> >> Thanks
> >> >> _______________________________________________
> >> >> rules-users mailing list
> >> >> rules-users(a)lists.jboss.org
> >> >> https://lists.jboss.org/mailman/listinfo/rules-users
> >> >
> >> >
> >> > _______________________________________________
> >> > rules-users mailing list
> >> > rules-users(a)lists.jboss.org
> >> > https://lists.jboss.org/mailman/listinfo/rules-users
> >> >
> >> >
> >>
> >> _______________________________________________
> >> rules-users mailing list
> >> rules-users(a)lists.jboss.org
> >> https://lists.jboss.org/mailman/listinfo/rules-users
> >
> >
> > _______________________________________________
> > rules-users mailing list
> > rules-users(a)lists.jboss.org
> > https://lists.jboss.org/mailman/listinfo/rules-users
> >
> >
>
> _______________________________________________
> rules-users mailing list
> rules-users(a)lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
_______________________________________________
rules-users mailing list
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3:11 a.m.
Assuming you have
class ApplicationData{ String age; int intAge;... }
you might do
rule one
when
ad : ApplicationData( $age: age != null && != "" &&
matches "\\d+" )
then
modify( ad ){ setIntAge( Integer.parseInt($age) ) }
end
rule two
when
ad : ApplicationData( intAge < 0 )
then
...error...
end
Or, anoither possibilitie:
when
ad : ApplicationData( $age: age != null && != "" && matches
"\\d+" )
eval( Integer.parseInt($age) < 0 )
then
...error...
end
-W
On 25 March 2011 18:46, Benson Fung <benson.redhat(a)gmail.com> wrote:
so how can I change it to integer in the rule?
2011/3/26 Wolfgang Laun <wolfgang.laun(a)gmail.com>:
> If it's stored in a fact field of type int: yes.
>
> The way you write it: no.
>
> -W
>
>
> On 25 March 2011 18:37, Benson Fung <benson.redhat(a)gmail.com> wrote:
>>
>> If the age is String type, can I use Integer.parseInt(age) to change
>> to integer and then evaluate it?
>>
>> like
>>
>> when
>> ad : ApplicationData(Integer.parseInt(age) < 0)
>> then
>> ad.setReturnMsg("age should not be negative 0")
>> end
>>
>>
>>
>>
>> 2011/3/26 Wolfgang Laun <wolfgang.laun(a)gmail.com>:
>> > Sorry, I don't use guided editors.
>> > -W
>> >
>> > On 25 March 2011 18:17, Benson Fung <benson.redhat(a)gmail.com> wrote:
>> >>
>> >> Hi Wolfgang,
>> >>
>> >> I managed to author this rule(ApplicationData( age == null || age ==
>> >> "" )) via Technical Rules editor of BRMS.
>> >> However, I cannot create this rule via Business Rule Guided Editor of
>> >> BRMS.
>> >>
>> >> Could you let me know how?
>> >>
>> >>
>> >> Thanks
>> >>
>> >>
>> >>
>> >> 2011/3/26 Wolfgang Laun <wolfgang.laun(a)gmail.com>:
>> >> > You can't use a method call as the left hand side operand in
a
>> >> > constraint;
>> >> > thus
>> >> > age.size() == 0
>> >> > is not correct.
>> >> >
>> >> > Do you really mean
>> >> > age == "null"
>> >> >
>> >> > Probably
>> >> > ApplicationData( age == null || age == "" )
>> >> > is the right thing to do, provided that ApplicationData.age is a
>> >> > String.
>> >> >
>> >> > -W
>> >> >
>> >> > On 25 March 2011 17:32, Benson Fung
<benson.redhat(a)gmail.com>
wrote:
>> >> >>
>> >> >> Hi,
>> >> >>
>> >> >> I got the following rule problem.
>> >> >>
>> >> >> The rule is like :
>> >> >>
>> >> >> 1. | rule "Rule1"
>> >> >> 2. | dialect "mvel"
>> >> >> 3. | when
>> >> >> 4. | ad : ApplicationData( age ==
"null" ,
>> >> >> age.size()
>> >> >> == 0)
>> >> >> 5. | then
>> >> >> 6. | ad.setReturnMsg( "age should not
be null
or
>> >> >> empty"
>> >> >> );
>> >> >> 7. | end
>> >> >>
>> >> >> where setReturnMsg is a method of ApplicationData Fact();
>> >> >>
>> >> >> However, I got the validation error :
>> >> >>
>> >> >> [Rule1] [ERR 101] Line 4:49 no viable alternative at input
')' in
>> >> >> rule
>> >> >> "Rule1" in pattern ApplicationData
>> >> >> [Rule1] [ERR 102] Line 4:51 mismatched input '=='
expecting ')' in
>> >> >> rule "Rule1" in pattern ApplicationData
>> >> >>
>> >> >> Please help what the problem is.
>> >> >>
>> >> >>
>> >> >> Thanks
>> >> >> _______________________________________________
>> >> >> rules-users mailing list
>> >> >> rules-users(a)lists.jboss.org
>> >> >> https://lists.jboss.org/mailman/listinfo/rules-users
>> >> >
>> >> >
>> >> > _______________________________________________
>> >> > rules-users mailing list
>> >> > rules-users(a)lists.jboss.org
>> >> > https://lists.jboss.org/mailman/listinfo/rules-users
>> >> >
>> >> >
>> >>
>> >> _______________________________________________
>> >> rules-users mailing list
>> >> rules-users(a)lists.jboss.org
>> >> https://lists.jboss.org/mailman/listinfo/rules-users
>> >
>> >
>> > _______________________________________________
>> > rules-users mailing list
>> > rules-users(a)lists.jboss.org
>> > https://lists.jboss.org/mailman/listinfo/rules-users
>> >
>> >
>>
>> _______________________________________________
>> rules-users mailing list
>> rules-users(a)lists.jboss.org
>> https://lists.jboss.org/mailman/listinfo/rules-users
>
>
> _______________________________________________
> rules-users mailing list
> rules-users(a)lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
>
>
_______________________________________________
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4:17 a.m.
I'd assume you set "null" as a literal value on the rule?
There's sort of a problem, AFAIK, that all literals are escaped as String in
the RHS of a rule.
You might be best suited to electing to use "New Formula" and specifying the
text "age ==null || age.size() == 0".
This generates an inline eval for your constraint, which although not
optimal, should work.
With kind regards,
Mike
2011/3/25 Wolfgang Laun <wolfgang.laun(a)gmail.com>
Assuming you have
class ApplicationData{ String age; int intAge;... }
you might do
rule one
when
ad : ApplicationData( $age: age != null && != "" &&
matches "\\d+" )
then
modify( ad ){ setIntAge( Integer.parseInt($age) ) }
end
rule two
when
ad : ApplicationData( intAge < 0 )
then
...error...
end
Or, anoither possibilitie:
when
ad : ApplicationData( $age: age != null && != "" && matches
"\\d+" )
eval( Integer.parseInt($age) < 0 )
then
...error...
end
-W
On 25 March 2011 18:46, Benson Fung <benson.redhat(a)gmail.com> wrote:
> so how can I change it to integer in the rule?
>
>
>
> 2011/3/26 Wolfgang Laun <wolfgang.laun(a)gmail.com>:
> > If it's stored in a fact field of type int: yes.
> >
> > The way you write it: no.
> >
> > -W
> >
> >
> > On 25 March 2011 18:37, Benson Fung <benson.redhat(a)gmail.com> wrote:
> >>
> >> If the age is String type, can I use Integer.parseInt(age) to change
> >> to integer and then evaluate it?
> >>
> >> like
> >>
> >> when
> >> ad : ApplicationData(Integer.parseInt(age) < 0)
> >> then
> >> ad.setReturnMsg("age should not be negative 0")
> >> end
> >>
> >>
> >>
> >>
> >> 2011/3/26 Wolfgang Laun <wolfgang.laun(a)gmail.com>:
> >> > Sorry, I don't use guided editors.
> >> > -W
> >> >
> >> > On 25 March 2011 18:17, Benson Fung <benson.redhat(a)gmail.com>
wrote:
> >> >>
> >> >> Hi Wolfgang,
> >> >>
> >> >> I managed to author this rule(ApplicationData( age == null || age
==
> >> >> "" )) via Technical Rules editor of BRMS.
> >> >> However, I cannot create this rule via Business Rule Guided Editor
> of
> >> >> BRMS.
> >> >>
> >> >> Could you let me know how?
> >> >>
> >> >>
> >> >> Thanks
> >> >>
> >> >>
> >> >>
> >> >> 2011/3/26 Wolfgang Laun <wolfgang.laun(a)gmail.com>:
> >> >> > You can't use a method call as the left hand side operand
in a
> >> >> > constraint;
> >> >> > thus
> >> >> > age.size() == 0
> >> >> > is not correct.
> >> >> >
> >> >> > Do you really mean
> >> >> > age == "null"
> >> >> >
> >> >> > Probably
> >> >> > ApplicationData( age == null || age == "" )
> >> >> > is the right thing to do, provided that ApplicationData.age is
a
> >> >> > String.
> >> >> >
> >> >> > -W
> >> >> >
> >> >> > On 25 March 2011 17:32, Benson Fung
<benson.redhat(a)gmail.com>
> wrote:
> >> >> >>
> >> >> >> Hi,
> >> >> >>
> >> >> >> I got the following rule problem.
> >> >> >>
> >> >> >> The rule is like :
> >> >> >>
> >> >> >> 1. | rule "Rule1"
> >> >> >> 2. | dialect "mvel"
> >> >> >> 3. | when
> >> >> >> 4. | ad : ApplicationData( age ==
"null" ,
> >> >> >> age.size()
> >> >> >> == 0)
> >> >> >> 5. | then
> >> >> >> 6. | ad.setReturnMsg( "age should
not be null
> or
> >> >> >> empty"
> >> >> >> );
> >> >> >> 7. | end
> >> >> >>
> >> >> >> where setReturnMsg is a method of ApplicationData Fact();
> >> >> >>
> >> >> >> However, I got the validation error :
> >> >> >>
> >> >> >> [Rule1] [ERR 101] Line 4:49 no viable alternative at input
')' in
> >> >> >> rule
> >> >> >> "Rule1" in pattern ApplicationData
> >> >> >> [Rule1] [ERR 102] Line 4:51 mismatched input '=='
expecting ')'
> in
> >> >> >> rule "Rule1" in pattern ApplicationData
> >> >> >>
> >> >> >> Please help what the problem is.
> >> >> >>
> >> >> >>
> >> >> >> Thanks
> >> >> >> _______________________________________________
> >> >> >> rules-users mailing list
> >> >> >> rules-users(a)lists.jboss.org
> >> >> >> https://lists.jboss.org/mailman/listinfo/rules-users
> >> >> >
> >> >> >
> >> >> > _______________________________________________
> >> >> > rules-users mailing list
> >> >> > rules-users(a)lists.jboss.org
> >> >> > https://lists.jboss.org/mailman/listinfo/rules-users
> >> >> >
> >> >> >
> >> >>
> >> >> _______________________________________________
> >> >> rules-users mailing list
> >> >> rules-users(a)lists.jboss.org
> >> >> https://lists.jboss.org/mailman/listinfo/rules-users
> >> >
> >> >
> >> > _______________________________________________
> >> > rules-users mailing list
> >> > rules-users(a)lists.jboss.org
> >> > https://lists.jboss.org/mailman/listinfo/rules-users
> >> >
> >> >
> >>
> >> _______________________________________________
> >> rules-users mailing list
> >> rules-users(a)lists.jboss.org
> >> https://lists.jboss.org/mailman/listinfo/rules-users
> >
> >
> > _______________________________________________
> > rules-users mailing list
> > rules-users(a)lists.jboss.org
> > https://lists.jboss.org/mailman/listinfo/rules-users
> >
> >
>
> _______________________________________________
> rules-users mailing list
> rules-users(a)lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
>
_______________________________________________
rules-users mailing list
rules-users(a)lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users
5:54 p.m.
One option is to wrap the expression in an eval
Eg ad : ApplicationData(eval(Integer.parseInt(age) < 0).
A better option is to fix your ApplicationData class so that the type of age is Integer or
int.
Thomas
-----Original Message-----
From: rules-users-bounces(a)lists.jboss.org [mailto:rules-users-
bounces(a)lists.jboss.org] On Behalf Of Benson Fung
Sent: 25 March 2011 17:47
To: Rules Users List
Subject: Re: [rules-users] Ask for help on rule authoring
so how can I change it to integer in the rule?
2011/3/26 Wolfgang Laun <wolfgang.laun(a)gmail.com>:
> If it's stored in a fact field of type int: yes.
>
> The way you write it: no.
>
> -W
>
>
> On 25 March 2011 18:37, Benson Fung <benson.redhat(a)gmail.com> wrote:
>>
>> If the age is String type, can I use Integer.parseInt(age) to change
>> to integer and then evaluate it?
>>
>> like
>>
>> when
>> ad : ApplicationData(Integer.parseInt(age) < 0)
>> then
>> ad.setReturnMsg("age should not be negative 0")
>> end
>>
>>
>>
>>
>> 2011/3/26 Wolfgang Laun <wolfgang.laun(a)gmail.com>:
>> > Sorry, I don't use guided editors.
>> > -W
>> >
>> > On 25 March 2011 18:17, Benson Fung <benson.redhat(a)gmail.com>
wrote:
>> >>
>> >> Hi Wolfgang,
>> >>
>> >> I managed to author this rule(ApplicationData( age == null || age
==
>> >> "" )) via Technical Rules editor of BRMS.
>> >> However, I cannot create this rule via Business Rule Guided
Editor of
>> >> BRMS.
>> >>
>> >> Could you let me know how?
>> >>
>> >>
>> >> Thanks
>> >>
>> >>
>> >>
>> >> 2011/3/26 Wolfgang Laun <wolfgang.laun(a)gmail.com>:
>> >> > You can't use a method call as the left hand side operand in
a
>> >> > constraint;
>> >> > thus
>> >> > age.size() == 0
>> >> > is not correct.
>> >> >
>> >> > Do you really mean
>> >> > age == "null"
>> >> >
>> >> > Probably
>> >> > ApplicationData( age == null || age == "" )
>> >> > is the right thing to do, provided that ApplicationData.age is
a
>> >> > String.
>> >> >
>> >> > -W
>> >> >
>> >> > On 25 March 2011 17:32, Benson Fung
<benson.redhat(a)gmail.com>
wrote:
>> >> >>
>> >> >> Hi,
>> >> >>
>> >> >> I got the following rule problem.
>> >> >>
>> >> >> The rule is like :
>> >> >>
>> >> >> 1. | rule "Rule1"
>> >> >> 2. | dialect "mvel"
>> >> >> 3. | when
>> >> >> 4. | ad : ApplicationData( age ==
"null" ,
>> >> >> age.size()
>> >> >> == 0)
>> >> >> 5. | then
>> >> >> 6. | ad.setReturnMsg( "age should not
be
null or
>> >> >> empty"
>> >> >> );
>> >> >> 7. | end
>> >> >>
>> >> >> where setReturnMsg is a method of ApplicationData Fact();
>> >> >>
>> >> >> However, I got the validation error :
>> >> >>
>> >> >> [Rule1] [ERR 101] Line 4:49 no viable alternative at input
')'
in
>> >> >> rule
>> >> >> "Rule1" in pattern ApplicationData
>> >> >> [Rule1] [ERR 102] Line 4:51 mismatched input '=='
expecting
')' in
>> >> >> rule "Rule1" in pattern ApplicationData
>> >> >>
>> >> >> Please help what the problem is.
>> >> >>
>> >> >>
>> >> >> Thanks
>> >> >> _______________________________________________
>> >> >> rules-users mailing list
>> >> >> rules-users(a)lists.jboss.org
>> >> >> https://lists.jboss.org/mailman/listinfo/rules-users
>> >> >
>> >> >
>> >> > _______________________________________________
>> >> > rules-users mailing list
>> >> > rules-users(a)lists.jboss.org
>> >> > https://lists.jboss.org/mailman/listinfo/rules-users
>> >> >
>> >> >
>> >>
>> >> _______________________________________________
>> >> rules-users mailing list
>> >> rules-users(a)lists.jboss.org
>> >> https://lists.jboss.org/mailman/listinfo/rules-users
>> >
>> >
>> > _______________________________________________
>> > rules-users mailing list
>> > rules-users(a)lists.jboss.org
>> > https://lists.jboss.org/mailman/listinfo/rules-users
>> >
>> >
>>
>> _______________________________________________
>> rules-users mailing list
>> rules-users(a)lists.jboss.org
>> https://lists.jboss.org/mailman/listinfo/rules-users
>
>
> _______________________________________________
> rules-users mailing list
> rules-users(a)lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
>
>
_______________________________________________
rules-users mailing list
rules-users(a)lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users
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4789
days inactive
4792
days old
12 comments
5 participants
participants (5)
-
Benson Fung -
Mauricio Salatino -
Michael Anstis -
Swindells, Thomas -
Wolfgang Laun