Hi Jérémy. Filtering by expressions on a method should work fine. What you're probably hitting here is that you're using version 4.0 of Cayenne, which doesn't have full support for method names not prefixed with the JavaBean style "get".
A fix is already in version 4.2 and will hopefully get backported to 4.1 (we also have a class to fix the problem in the current 4.1 that we can share with you if you want to pursue this). Personally, I recommend that you base your development effort on version 4.1, especially since you're not going directly into production. It's very stable (I use it in production myself) and has a lot of improvements (sorry about not mentioning that earlier). Cheers, - hugi > On 15 Apr 2019, at 14:05, Jérémy DE ROYER <jeremy.dero...@ingencys.net> wrote: > > Hello, > > Does Cayenne supports in-memory filtering ? (like EOF does, I mean without > takinbg car if it’s sql ou java) > > As explained is the doc, I wrote without any effort : > > Expression e = Artist.NAME.in<http://Artist.NAME.in>("John", "Bob"); > > > List<Artist> filtered = e.filterObjects(unfiltered); > > Then, I made a new method and change the expression but without success : > > Expression e = ExpressionFactory.likeExp("customedName", "Bob"); // where > customedName() is a method cloning name() > > > List<Artist> filtered = e.filterObjects(unfiltered); > > But an error raised : > > org.apache.cayenne.exp.ExpressionException: [v.4.0 Aug 06 2018 12:11:43] > Error evaluating expression ‘customedName like "Bob"' > > Any idea ? > > Jérémy
