Dan, Ok, I will try type-safe queries. Thanks for your support.
Rgards, James. 2015-05-16 19:23 GMT+08:00 Dan Haywood <[email protected]>: > Another option is to use DataNucleus' type-safe queries. I just recently > started playing around with these; the isisaddons' todoapp shows an example > [1] > > The main thing you need to ensure is that your IDE has annotation > processing enabled. IntelliJ does this automatically, so does Eclipse I > think, so it should probably "just work". It requires: > > <dependency> > <groupId>org.datanucleus</groupId> > <artifactId>datanucleus-api-jdo</artifactId> > </dependency> > > to be in your classpath of the dom module (this is where the annotation > processor implementation is, I believe). > > Cheers > Dan > > > [1] > > https://github.com/isisaddons/isis-app-todoapp/blob/master/dom/src/main/java/todoapp/dom/module/todoitem/ToDoItemRepositoryImplUsingTypesafeQueries.java#L37 > > On 15 May 2015 at 05:28, Chuangyu <[email protected]> wrote: > > > Oh ,I find the IsisJdoSupportService. > > > > 2015-05-15 12:17 GMT+08:00 Chuangyu <[email protected]>: > > > > > Hi, > > > > > > I tried to find query aggregate values use JDOQL ,but > > > DomainObjectContainer seems not support that? > > > > > > all methods returns <T> or List<T>, but cannot return a Integer. > > > > > > for example : > > > > > > @javax.jdo.annotations.Query( > > > name="countAll",language = "JDOQL", > > > value = "SELECT count(this)" > > > + "FROM dom.SimpleObject" > > > ) > > > > > > > > > Thanks > > > > > > James > > > > > >
