How can I set global variable in drools using drools-spring and use same in DRL file

Question

Basically I want to store a class reference as global variable from spring service class and use the same inside the DRL file to access method and properties of global reference.

Answer 1

Inside your service class use below code:

StatelessKnowledgeSession knowledgeSession;
CustomClass reference;
knowledgeSession.setGlobal("global1", reference);
knowledgeSession.execute(fact);

Inside DRL file

import CustomClass;

global CustomClass global1

Use reference inside any rule.