Attachments are not allowed by the mailing list - I'd suggest opening a JIRA and then sending a link to the list. Thanks!
John On Thu, Sep 15, 2011 at 1:29 PM, Hugi Thordarson <[email protected]> wrote: > Hi all. > > Cayenne beginner here. I come from an EOF/WebObjects background, so when I > started using Cayenne (yesterday) I kinda missed the type safety and > conciseness of using Mike Schrag's ERXKeys when constructing qualifiers and > Orderings. > > So me and another EOF guy (@atlipall) sat down today and > recreated/reverse-engineered some of Mike's work to be usable with Cayenne. > We're sharing this early, hoping it might be useful for someone else—and > since we're total beginners and don't know much about Cayenne yet, comments > are appreciated. (Perhaps we're even implementing pre-existing > functionality; we just don't know :). > > Anyway, by using the two attached classes and superclass template, you can > write type safe code such as: > > List<User> users = User.fetch( dataContext, User.FIRSTNAME.like( "joe%" > ).and( User.AGE.between( 20, 30 ), User.FIRSTNAME.asc().then( > User.LASTNAME.asc() ) ); > > (this would fetch all users named "joe"-something, aged betweeen 20 and 30, > and order the list by first name, then last name. > > We also added some convenience methods to the superclass template. These > are: > > fetchAll( ObjectContext ); > fetchAll( ObjectContext, List<Ordering> ); > fetch( ObjectContext, Expression ); > fetch( ObjectContext, Expression, List<Ordering> ); > fetchOne( ObjectContext, Expression ); > create{relationship_name}Relationship(); > delete{relationship_name}Relationship(); > > That's all for now. > > Cheers, > - hugi > >
