2:27 a.m.
Hi there,
I have checked existing posts and able to find problems which are similar to
mine but not exactly.
I have an Alert object as per below, several alert instances may have the
same caseNumber
I am trying to collect all the Alert instances that have the same
caseNumber, the rule is below, the rule below collects the items correctly
but the execution happens for each Alert object inserted into the knowledge
session. How can I get around this?
public class Alert {
int caseNumber;
short alertNo;
public int getCaseNumber() {
return caseNumber;
}
public void setCaseNumber(int caseNumber) {
this.caseNumber = caseNumber;
}
public short getAlertNo() {
return alertNo;
}
public void setAlertNo(short alertNo) {
this.alertNo = alertNo;
}
@Override
public String toString() {
return "Alert [caseNumber=" + caseNumber + ", alertNo=" + alertNo +
"]";
}
}
rule 'Collect Alerts for a specific case'
dialect 'java'
when
Alert( $caseNumber : caseNumber)
$list : List( ) from collect($alertalert : Alert( caseNumber ==
$caseNumber))
then
for(Object a : $list){
System.out.println(a);
}
end
I insert 5 alert objects as per below
Alert alert1 = new Alert();
alert1.setAlertNo((short)1);
alert1.setCaseNumber(830826);
Alert alert4 = new Alert();
alert4.setAlertNo((short)4);
alert4.setCaseNumber(830826);
Alert alert7 = new Alert();
alert7.setAlertNo((short)7);
alert7.setCaseNumber(830826);
Alert alert3 = new Alert();
alert3.setAlertNo((short)3);
alert3.setCaseNumber(820424);
Alert alert5 = new Alert();
alert5.setAlertNo((short)5);
alert5.setCaseNumber(820424);
I would like the output to be as follows
Alert [caseNumber=820424, alertNo=3]
Alert [caseNumber=820424, alertNo=5]
Alert [caseNumber=830826, alertNo=7]
Alert [caseNumber=830826, alertNo=4]
Alert [caseNumber=830826, alertNo=1]
but instead the output is
Alert [caseNumber=820424, alertNo=5]
Alert [caseNumber=820424, alertNo=5]
Alert [caseNumber=820424, alertNo=3]
Alert [caseNumber=820424, alertNo=5]
Alert [caseNumber=820424, alertNo=3]
Alert [caseNumber=830826, alertNo=7]
Alert [caseNumber=830826, alertNo=7]
Alert [caseNumber=830826, alertNo=4]
Alert [caseNumber=830826, alertNo=7]
Alert [caseNumber=830826, alertNo=4]
Alert [caseNumber=830826, alertNo=7]
Alert [caseNumber=830826, alertNo=4]
Alert [caseNumber=830826, alertNo=1]
Alert [caseNumber=830826, alertNo=7]
Alert [caseNumber=830826, alertNo=4]
Alert [caseNumber=830826, alertNo=1]
Alert [caseNumber=830826, alertNo=7]
Alert [caseNumber=830826, alertNo=4]
Alert [caseNumber=830826, alertNo=1]
--
View this message in context:
http://drools.46999.n3.nabble.com/Collecting-items-in-a-List-tp4021256.html
Sent from the Drools: User forum mailing list archive at Nabble.com.
2:31 a.m.
Id like to collect all the Alert intances that have the same case number as
seperate lLists
--
View this message in context:
http://drools.46999.n3.nabble.com/Collecting-items-in-a-List-tp4021256p40...
Sent from the Drools: User forum mailing list archive at Nabble.com.
2:46 a.m.
Assuming that you call kSession.fireAllRules() only once after the insertion
of all facts, you have to select a single representative for all Alert facts
with identical case number.
Again assuming that the alertNo is unique, you can write
when
Alert( $caseNumber : caseNumber, $alertNo: alertNo )
not Alert( alertNo < $alertNo )
$list : List( ) from collect($alertalert : Alert( caseNumber ==
$caseNumber))
then
-W
On 20/12/2012, devan.vanreenen(a)gmail.com <devan.vanreenen(a)gmail.com> wrote:
Hi there,
I have checked existing posts and able to find problems which are similar
to
mine but not exactly.
I have an Alert object as per below, several alert instances may have the
same caseNumber
I am trying to collect all the Alert instances that have the same
caseNumber, the rule is below, the rule below collects the items correctly
but the execution happens for each Alert object inserted into the knowledge
session. How can I get around this?
public class Alert {
int caseNumber;
short alertNo;
public int getCaseNumber() {
return caseNumber;
}
public void setCaseNumber(int caseNumber) {
this.caseNumber = caseNumber;
}
public short getAlertNo() {
return alertNo;
}
public void setAlertNo(short alertNo) {
this.alertNo = alertNo;
}
@Override
public String toString() {
return "Alert [caseNumber=" + caseNumber + ", alertNo=" + alertNo +
"]";
}
}
rule 'Collect Alerts for a specific case'
dialect 'java'
when
Alert( $caseNumber : caseNumber)
$list : List( ) from collect($alertalert : Alert( caseNumber ==
$caseNumber))
then
for(Object a : $list){
System.out.println(a);
}
end
I insert 5 alert objects as per below
Alert alert1 = new Alert();
alert1.setAlertNo((short)1);
alert1.setCaseNumber(830826);
Alert alert4 = new Alert();
alert4.setAlertNo((short)4);
alert4.setCaseNumber(830826);
Alert alert7 = new Alert();
alert7.setAlertNo((short)7);
alert7.setCaseNumber(830826);
Alert alert3 = new Alert();
alert3.setAlertNo((short)3);
alert3.setCaseNumber(820424);
Alert alert5 = new Alert();
alert5.setAlertNo((short)5);
alert5.setCaseNumber(820424);
I would like the output to be as follows
Alert [caseNumber=820424, alertNo=3]
Alert [caseNumber=820424, alertNo=5]
Alert [caseNumber=830826, alertNo=7]
Alert [caseNumber=830826, alertNo=4]
Alert [caseNumber=830826, alertNo=1]
but instead the output is
Alert [caseNumber=820424, alertNo=5]
Alert [caseNumber=820424, alertNo=5]
Alert [caseNumber=820424, alertNo=3]
Alert [caseNumber=820424, alertNo=5]
Alert [caseNumber=820424, alertNo=3]
Alert [caseNumber=830826, alertNo=7]
Alert [caseNumber=830826, alertNo=7]
Alert [caseNumber=830826, alertNo=4]
Alert [caseNumber=830826, alertNo=7]
Alert [caseNumber=830826, alertNo=4]
Alert [caseNumber=830826, alertNo=7]
Alert [caseNumber=830826, alertNo=4]
Alert [caseNumber=830826, alertNo=1]
Alert [caseNumber=830826, alertNo=7]
Alert [caseNumber=830826, alertNo=4]
Alert [caseNumber=830826, alertNo=1]
Alert [caseNumber=830826, alertNo=7]
Alert [caseNumber=830826, alertNo=4]
Alert [caseNumber=830826, alertNo=1]
--
View this message in context:
http://drools.46999.n3.nabble.com/Collecting-items-in-a-List-tp4021256.html
Sent from the Drools: User forum mailing list archive at Nabble.com.
_______________________________________________
rules-users mailing list
rules-users(a)lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users
3:09 a.m.
Hi laune, thanks for your response, the alert no is not unique, diferrent
cases may have the same alert no.
--
View this message in context:
http://drools.46999.n3.nabble.com/Collecting-items-in-a-List-tp4021256p40...
Sent from the Drools: User forum mailing list archive at Nabble.com.
3:44 a.m.
Find some other attribute or attribute combination with the required
properties: unique and ordered.
-W
On 20/12/2012, devan.vanreenen(a)gmail.com <devan.vanreenen(a)gmail.com> wrote:
Hi laune, thanks for your response, the alert no is not unique,
diferrent
cases may have the same alert no.
--
View this message in context:
http://drools.46999.n3.nabble.com/Collecting-items-in-a-List-tp4021256p40...
Sent from the Drools: User forum mailing list archive at Nabble.com.
_______________________________________________
rules-users mailing list
rules-users(a)lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users
7:16 a.m.
I'm not sure what I did earlier, but when executing the below rules, I get
the desired results. I insert 20 Alert objects and the rule collects alerts
according to a specific case number, rules and output below
Rules
rule 'Group alerts for a specific case'
dialect 'java'
when
Alert( $caseNumber : caseNumber, $alertNo: alertNo )
$list : List( ) from collect($alert : Alert( caseNumber == $caseNumber))
then
insertLogical($list);
end
rule 'Print inserted lists'
salience -10
dialect 'java'
when
$list : List( )
then
System.out.println("******Printing list******: ");
System.out.println("******List hashCode: " + $list.hashCode());
for(Object o : $list){
System.out.println(o);
}
end
Output
******Printing list******:
******List hashCode: -1902211073
Alert [caseNumber=1021567, alertNo=1]
Alert [caseNumber=1021567, alertNo=2]
Alert [caseNumber=1021567, alertNo=8]
******Printing list******:
******List hashCode: -68071555
Alert [caseNumber=1012283, alertNo=1]
Alert [caseNumber=1012283, alertNo=2]
Alert [caseNumber=1012283, alertNo=6]
Alert [caseNumber=1012283, alertNo=2]
Alert [caseNumber=1012283, alertNo=8]
Alert [caseNumber=1012283, alertNo=2]
******Printing list******:
******List hashCode: -485211774
Alert [caseNumber=1022621, alertNo=6]
Alert [caseNumber=1022621, alertNo=6]
Alert [caseNumber=1022621, alertNo=6]
Alert [caseNumber=1022621, alertNo=2]
Alert [caseNumber=1022621, alertNo=1]
Alert [caseNumber=1022621, alertNo=2]
Alert [caseNumber=1022621, alertNo=2]
Alert [caseNumber=1022621, alertNo=8]
******Printing list******:
******List hashCode: 1815474720
Alert [caseNumber=55506677, alertNo=1]
Alert [caseNumber=55506677, alertNo=2]
Alert [caseNumber=55506677, alertNo=6]
--
View this message in context:
http://drools.46999.n3.nabble.com/Collecting-items-in-a-List-tp4021256p40...
Sent from the Drools: User forum mailing list archive at Nabble.com.
7:38 a.m.
You are inserting the collected lists and printing them later, with
low salience. The previously shown rule printed the collected facts on
the fly, which will fire the rule repeatedly and visibly. The new
solution still fires the collecting rule repeatedly, but you don't see
that.
-W
On 20/12/2012, devan.vanreenen(a)gmail.com <devan.vanreenen(a)gmail.com> wrote:
I'm not sure what I did earlier, but when executing the below
rules, I get
the desired results. I insert 20 Alert objects and the rule collects alerts
according to a specific case number, rules and output below
Rules
rule 'Group alerts for a specific case'
dialect 'java'
when
Alert( $caseNumber : caseNumber, $alertNo: alertNo )
$list : List( ) from collect($alert : Alert( caseNumber == $caseNumber))
then
insertLogical($list);
end
rule 'Print inserted lists'
salience -10
dialect 'java'
when
$list : List( )
then
System.out.println("******Printing list******: ");
System.out.println("******List hashCode: " + $list.hashCode());
for(Object o : $list){
System.out.println(o);
}
end
Output
******Printing list******:
******List hashCode: -1902211073
Alert [caseNumber=1021567, alertNo=1]
Alert [caseNumber=1021567, alertNo=2]
Alert [caseNumber=1021567, alertNo=8]
******Printing list******:
******List hashCode: -68071555
Alert [caseNumber=1012283, alertNo=1]
Alert [caseNumber=1012283, alertNo=2]
Alert [caseNumber=1012283, alertNo=6]
Alert [caseNumber=1012283, alertNo=2]
Alert [caseNumber=1012283, alertNo=8]
Alert [caseNumber=1012283, alertNo=2]
******Printing list******:
******List hashCode: -485211774
Alert [caseNumber=1022621, alertNo=6]
Alert [caseNumber=1022621, alertNo=6]
Alert [caseNumber=1022621, alertNo=6]
Alert [caseNumber=1022621, alertNo=2]
Alert [caseNumber=1022621, alertNo=1]
Alert [caseNumber=1022621, alertNo=2]
Alert [caseNumber=1022621, alertNo=2]
Alert [caseNumber=1022621, alertNo=8]
******Printing list******:
******List hashCode: 1815474720
Alert [caseNumber=55506677, alertNo=1]
Alert [caseNumber=55506677, alertNo=2]
Alert [caseNumber=55506677, alertNo=6]
--
View this message in context:
http://drools.46999.n3.nabble.com/Collecting-items-in-a-List-tp4021256p40...
Sent from the Drools: User forum mailing list archive at Nabble.com.
_______________________________________________
rules-users mailing list
rules-users(a)lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users
12:56 a.m.
I have changed the rule logic to use a combination between alertNo and
caseNumber, which seems to have the desired effect after running a couple of
tests. Thank you for your help.
rule 'Group alerts for a specific case'
dialect 'java'
when
Alert( $caseNumber : caseNumber, $alertNo: alertNo )
not Alert( caseNumber == $caseNumber, alertNo < $alertNo )
$list : List( ) from collect($alert : Alert( caseNumber ==
$caseNumber))
then
System.out.println("******Printing list******: ");
System.out.println("******List hashCode: " + $list.hashCode());
for(Object o : $list){
System.out.println(o);
}
end
Output
--
View this message in context:
http://drools.46999.n3.nabble.com/Collecting-items-in-a-List-tp4021256p40...
Sent from the Drools: User forum mailing list archive at Nabble.com.
4388
days inactive
4389
days old
7 comments
2 participants
participants (2)
-
devan.vanreenen＠gmail.com -
Wolfgang Laun