[rules-users] write a rule file, longest matching?

hello，here is my java code main(){ MyPojo myPojo=new MyPojo(); myPojo.setA("aaa") myPojo.setB("bbb")... . . . List<MyPojo> myPojos=getAllFromDb()// get all object by mybatis form database ,and each one is different from another. ksession.setGlobal("myPojos", myPojos); ksession.insert(myPojo); } class MyPojo { private Long id; private String a; private String b; private String c; private String d; //getters; //setters; } i want to write a drl file whitch can find a List<MyPojo> myPojoSub that Each MyPojo From myPojoSub is come from myPojos and limited by some rules。 for example： myPojos={{id:1,a:"kkk",b:"iii",c:"ppp"},{id:2,a:"kkk",b:"iii"},{id:3,a:"kkk"},{id:4,a:"kkk",b:"iii",c:"ooo"},{id:5,a:"mmm",b:"fff",c:"ttt"}} and if there is a myPojo{a:kkk,b:"iii",c:"ppp"} then {id:1,a:"kkk",b:"iii",c:"ppp"} from myPojos is a member of myPojoSub if there is a myPojo{a:kkk,b:"iii",c:"ttt"} then {id:2,a:"kkk",b:"iii",}from myPojos is a member of myPojoSub if there is a myPojo{a:kkk,b:"fff",c:"ttt"} then {id:3,a:"kkk"}from myPojos is a member of myPojoSub if there is a myPojo{a:"lll",b:"fff",c:"ttt"} then {id:5,a:"mmm",b:"fff",c:"ttt"}from myPojos is a member of myPojoSub if there is a myPojo{a:"ppp",b:"jjj",c:"zzz"} then no any MyPojo from myPojos is a member of myPojoSub how do i write my drl rules？ any one can help me or give some suggestions？ thank you here is a rule file templet： package com.test.tules; import com.test.MyPojo; import java.util.List; globle List<com.test.MyPojo> myPojos; rule "aaaaa" salience 65523 when then -- View this message in context: http://drools.46999.n3.nabble.com/write-a-rule-file-longest-matching-tp40... Sent from the Drools: User forum mailing list archive at Nabble.com.