I am given a list of strings (Comma separated) as input and I need to check if any of the strings satisfy a given condition. I am trying to implement it using Drools Rule template with an array column header of unknown size. To be more specific I need to be be able to generalize the below Template to include any number of names in the eval statement. The idea is to give any number of names as input and check if any of the names satisy the condition given in the template. template header name[] package gms.drools.templates; global java.util.Map nameMap; import java.util.Map; template "RuleTemplate_name" rule "rule_name" when //Generalize the below line to check if the nameMap contains any of the names given in the input //eval(nameMap.containsKey("@{name1}") || nameMap.containsKey("@{name2}") || nameMap.containsKey("@{name3}") || nameMap.containsKey("@{name4}")) then System.out.println("SUCCESS"); end end template Please let me know if anyone has a solution for this or any other suggestions. -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/Using-an-array-column... Sent from the Drools - User mailing list archive at Nabble.com.