"More efficient" w.r.t. runtime, maintenance, development effort,...?
Writing individual rules is quick, bad for maintenance, and probably best, if a session has only a few inputs as it starts fast from a precompiled rule base. Parameter facts take a little time for development, are very good for maintenance (see below) and have a tolerable overhead if they are not too numerous and/or the session runs long. What should be considered is that a set of parameter facts can be maintained by non-technical personnel, e.g., in a spreadsheet or in some other data preparation tool. This could be a boon for long-ter maintenance. -W On 21/03/2014, Seb Geek <geek...@gmail.com> wrote: > Hello, > > I have a list of very similar rules executed in Drools and some performance > problems appear ... I want some advices to choose between two "direction" > in order to correct them ... > > First the context : > I have to execute always the same check but with different level or > "parameters". > For example, > - in the first demand (rule for our client) i have to count and retrieve > the list all Article that have a family code equals to 'A', 'B' or 'C' and > execute the then clause only if there is 3 elements in the filtered list. > - in the second demand (rule for our client) i have to count and retrieve > the list all Article that have a family code equals to 'B' or 'C' and > execute the then clause only if there is 4 elements in the filtered list > and so on ... > > The number of different group of parameter values and the values of theses > parameters will change over time ... > > The question is : is it more efficient to implement a lot of different > rules, each with their parameter in the code OR is it more efficient to > implement only one rule with an additional object as a drools fact > containing different parameter's values ? > > Thanks for your help > Sébastien > _______________________________________________ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
