All Questions
99 questions
1
vote
2
answers
260
views
Drools to decide fields to display in UI
I have a scenario where the fields in UI should be displayed based on User roles. For Example- If user is from role "A" then UI will display 5 fields but if the user is from role "B&...
- 36.6k
0
votes
1
answer
259
views
How to serialize kiebase in drools-engine 8.43.0.Final
Since the SessionsAwareKnowledgeBase implements KieBase which can't be serializable.
Usecase: Need to serialize the kiebase and store into the cache (redis). At runtime i have to deserialize the ...
- 11
1
vote
0
answers
286
views
Unable to serialize kiebase in drools-engine 8.29.0.Final
Since the SessionsAwareKnowledgeBase implements KieBase which can't be serializable.
Struggling from the past one week.
Usecase: Need to serialize the kiebase and store into the database.
At runtime i ...
- 19
0
votes
0
answers
66
views
Drools Business Rules : Unable to determine what is this NULL in exception detail and What these number with colon
I am using Drools BPMN rule engine for business rules validation and getting below errors intermittently in my application.
Exception while executing rules. [determine_flow_name:1 - Determine Flow ...
0
votes
1
answer
355
views
how to execute 2 drool rules in Java with different logic having dependency between them, used ruleflow-group but 2nd rule not getting executed
I am trying to execute different drool rules in java having different business logic but rule 2 needs to be executed after rule 1 gets executed. For this, I have used ruleflow-group. I am able to ...
1
vote
1
answer
318
views
Drools KieContainer does not fire rules with custom classloader
I am trying to add a non-existing method to a Java bean, compile it and use the newly added method in Drools rules. Via a custom class loader.
I am using CompilerUtils to bind newly modified class to ...
- 23
0
votes
1
answer
50
views
Assign either of value that exists or not null RuleInput($date = (this["startDate"] || this["startingDate"]))
Inside RuleInput there may be either "startDate" or "startingDate" , I need to assign value to $date variable either of the value that exists.
Something Like,
RuleInput($date = (...
-2
votes
2
answers
741
views
Can we trigger multiple dmn from java code [closed]
I have a project in business central with 8 dmn models. Is there any way to trigger all the 8 models from java code in a single api call, like we triggering many drl files in single api call?
1
vote
4
answers
3k
views
Problem with import in latest version of Drools
I'm new to Drools and I'm trying to start using different tutorials. Lately I've started those two: https://koziolekweb.pl/2008/10/30/jboss-rules-drools-silnik-regul-biznesowych/ and https://www....
- 11
0
votes
1
answer
389
views
I want to compare two lists using drools, but the rules are not firing
After inserting two arraylists of type InboundRegionalProduct and ExistingRegionalProduct in to the drools session the rules are not getting fired. Don't know whats the issue is.
This is the drl file.
...
- 85
0
votes
1
answer
1k
views
Create new Map<String, String> in drools file on the fly
Scenario:
Awarding the students based on few rules. Here each student is eligible for multiple rewards like student with marks 80 is eligible for both award_65 and award_75. So after evaluating the ...
- 226
0
votes
1
answer
1k
views
setting values to define type in drools in then part of rule
I have a define type in drools like this
package referee.security.category;
declare AskedQuestions
question : String
answer : Boolean
end
and a Java class for the same type in my java files. It is ...
- 410
0
votes
1
answer
524
views
how to implement time persistence in drools?
I am new to drools and I was wondering if there was a way to write rules that express persistence in time :
if (condition true for X seconds) then doSomething()
Rule "Example"
when
r: ...
- 186
0
votes
1
answer
407
views
Drools Absence of hitting a rule over a perios of time
I am new to Drools. I need to build an application with spring-boot & Drools(7.40.0.Final) where springboot application streams an external source that will continuously trigger data packets (...
- 171
0
votes
3
answers
844
views
Java - Generic Drools rule
I would like to create my rule more Generic format which mean it should be validate the fields and values. Following my POJO structure.
public class RulesModel
private String field;
private List<...
- 47