In the last time I heard a lot of complaining about Hibernate. And indeed I have some painful experiences with Hibernate too. So I read about Ebean and Siena. Both have interesting approaches...

This is related to question Java Appengine APPSTATS causing java out of memory error. Appstats seems to cause a java.lang.OutOfMemoryError on 128MB instances and I wonder whether there are ways to...

Suppose I have a Post entity and a Comment entity and a one to many relationship: @Entity class Post { ... @OneToMany List<Comment> comments; ... } How can I achieve paging like this: ...