Re: [rules-users] Need help in formulating rule (using list)

Hi all, I have an object which I use as main fact object, let's say "Schedule", which has a list of objects called "TimeEntry" ---> class Schedule(){ List<TimeEntry> entries; } class TimeEntry(){ String type; Date start; Date end; Integer length; } Now, if I insert Schedule into the WM, and would like to iterate over the list of TimeEntry, due to the following business rule : For all time entries, if it is of type BREAK: check whether a time entry of type WORK exist, before and/or after this BREAK, which has only length of 10 minutes The content of the time entry list has been sorted before so they are all in correct time order, e.g 09:00 - 09:10 WORK (10 min) 09:10 - 09:30 BREAK (20 min) 09:30 - 10:30 WORK (60 min) --> in this case, the rule should fire How can I define this rule? Some questions which I have: - how do I check previous and next element of the current element? - the length of the list isn't fix; it may contain 1, 2, or more entries. So somehow in an attempt to access next element, it should take care of the bound of the list. But should this be really part of the rule definition? Many thanks in advance! Regards