[rules-users] Is it possible to implement something similar to a SQL join in Drools ?

[soumya_sd]

Is it possible to have a rule that creates something similar to a SQL join. 

For example, the working memory has the following: 

List<Fact_A> and List<Fact_B>. 

In the "if" of the drl rule we want to check 

if Fact_A.someAttribute (some_condition) Fact_B.someOtherAttribute
//some_condition could be .equals(), .startsWith(), notEquals() ...

then 
 //somehow Fact_A and Fact_B 

Any examples or pointers would be greatly appreciated. 

Thanks. 


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