All Questions
Tagged with rules business-rules
36
questions
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134
views
How to identify false rule conditions in a Python rule engine?
I'm working on a Python rule engine that evaluates a set of rules against a given data set. The engine works fine when all the rule conditions are true, but I need to know when a rule condition is ...
- 1
0
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1
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96
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kiescanner unable to refresh rules within docker container
I am unable to refresh rules with latest KJAR using kiescanner. We have Artifactory as remote repository. I have provided custom settings.xml . kie-cie is in pom.xml. In docker I am providing M2-HOME.
...
- 11
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190
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How to not store responses in stateful session in Drools, but keep the global variables
Hope you can help me on this since I’m new on drools.
Currently I’m working with a stateful session deployed in Kie server, my problem here is that I don’t want to store all the responses from facts ...
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-1
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1
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439
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Question: Can you perform contains operations on a global variable of type list in Drools
i was wondering if i can perform a contains operation on the left hand side (LHS) on a drools rule.
Something of the sort:
global java.util.List myGlobalList;
dialect "mvel"
rule "...
- 223
1
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1
answer
626
views
Drools - Store Multi Stateful Sessions
We have implemented drools engine in our platform in order to be able to evaluate rules from streams.
In our use case we have a change detection stream which contains the changes of multiple entities.
...
- 63
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63
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How would you structure Alpha Nodes in a Rete Network that has a rule with two conditions found in other rules?
Let's say I have three rules:
When Object's foo property is 1, output "foo"
When Object's bar property is 1, output "bar"
When Object's foo property is 1 and bar property is 1, ...
- 373
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816
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rule engine with database support and rule modification API
I am trying for opensource rule engine where I can store the rules in data bases (mongodb or sql) also few APIs where I can modify the HA.
I came across these rules opensources but rule engine like ...
- 832
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232
views
Drools - Find matching object from a list of unconnected objects
I have a Mutation class with 3 variables, m1, m2, and m3. I also have a list of independent objects of a class Strain with 1 variable v. I need to be able to match a number of these objects i a list ...
- 630
-1
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1
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84
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platform agnostic rules or workflow engine [closed]
I have a requirement to use the platform agnostic rules engine which needs to run with my java and .net application. In both the windows and linux platform.
Do we have any opensource/commercial ...
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1
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4k
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How to do null or empty check in drools - mvel dialect?
When the configList is null, the AND logic should not proceed further, but I am getting this error - "array index out of bounds".
Below is the rule :
rule "testRule"
when
config : Config( ...
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1
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231
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How to determine if an object is an instance of a certain class in IBM Rules Designer/ODM?
This may be an easy one, but I haven't found an easy way to determine in a rule that an object in working memory represented by an implemented interface is a specific class in IBM Rules Designer 8.8.1....
- 33
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1
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447
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How can i match on multiple objects of the same kind in Drools 5?
Given a collection of BMSContract objects in memory of two or more, I need to match specific patterns using the BMSContract.status field. My rule should resolve to Success if in such collection ...
- 709
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105
views
Rules Engine Real Time Execution
I am using PHP and MySQL to run a backend server.
Currently I have a "Action" table that contains certain criteria and what action should be taken, the properties are following:
Conditions (contains ...
- 165
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1
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1k
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How to process Previous value of object in list item in drool rule engine?
I want Drool to fire rule in all elements of list
Here is my Order class
package com.sample;
import java.util.ArrayList;
import java.util.List;
public class Order {
public static final ...
1
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0
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93
views
How do I find Metrics to Support the Evaluation of Association Rule?
I have applied Association rules to a dataset of an online store (http://archive.ics.uci.edu/ml/datasets/Online+Retail#). I have gotten 4rules (Rules A,B,C y D). When checking the time series of each ...
- 141