Support Forums: Message List - Fast, easy and friendly ORM http://www.theserverside.com Most recent forum messages en Jive Forums Silver 5.5.30 (www.jivesoftware.com) Fri, 24 May 2013 05:27:27 -0400 Re: Anemic Domain http://www.theserverside.com/discussions/thread.tss?thread_id=54535 Sun, 17 May 2009 10:20:05 -0400 Sun, 17 May 2009 10:20:05 -0400 Sun, 17 May 2009 10:20:05 -0400 May 17, 2009 Jim Xie 0 Anemic Domain http://www.theserverside.com/discussions/thread.tss?thread_id=54535 Sun, 17 May 2009 01:23:09 -0400 Sun, 17 May 2009 01:23:09 -0400 Sun, 17 May 2009 01:23:09 -0400 May 17, 2009 Francois Swiegers 1 Re: Anemic Domain http://www.theserverside.com/discussions/thread.tss?thread_id=54535 I have to admit that Dreamsource ORM is being used in the applications of less than 1000 entities of domain models. One application was developed first using Hibernate. Performance issue was founded shortly after it was promoted to a user...]]> Fri, 15 May 2009 14:43:34 -0400 Fri, 15 May 2009 14:43:34 -0400 Fri, 15 May 2009 14:43:34 -0400 May 15, 2009 peter lin 0 Re: Anemic Domain http://www.theserverside.com/discussions/thread.tss?thread_id=54535 Thu, 14 May 2009 20:18:55 -0400 Thu, 14 May 2009 20:18:55 -0400 Thu, 14 May 2009 20:18:55 -0400 May 14, 2009 Jim Xie 1 Re: Anemic Domain http://www.theserverside.com/discussions/thread.tss?thread_id=54535 I am pondering this question for a couple of days. I got to answer it.


The idea of OO is to encapsulate rich business behaviour, not just CRUD. This is where Hibernate (and JPA) clearly wins out - not only are you...]]> Thu, 14 May 2009 11:01:22 -0400 Thu, 14 May 2009 11:01:22 -0400 Thu, 14 May 2009 11:01:22 -0400 May 14, 2009 peter lin 2 Anemic Domain http://www.theserverside.com/discussions/thread.tss?thread_id=54535 Thu, 14 May 2009 09:33:27 -0400 Thu, 14 May 2009 09:33:27 -0400 Thu, 14 May 2009 09:33:27 -0400 May 14, 2009 Jim Xie 5 ORM != CRUD http://www.theserverside.com/discussions/thread.tss?thread_id=54535 Wed, 13 May 2009 03:35:47 -0400 Wed, 13 May 2009 03:35:47 -0400 Wed, 13 May 2009 03:35:47 -0400 May 13, 2009 Francois Swiegers 6 Cat can catch mice http://www.theserverside.com/discussions/thread.tss?thread_id=54535 Tue, 12 May 2009 23:01:15 -0400 Tue, 12 May 2009 23:01:15 -0400 Tue, 12 May 2009 23:01:15 -0400 May 12, 2009 Jim Xie 0 Re: ORM is CRUD http://www.theserverside.com/discussions/thread.tss?thread_id=54535 From ORM, developer can use objects to build CRUD. each ORM must provide these functions. You can find an example from Tue, 12 May 2009 22:20:51 -0400 Tue, 12 May 2009 22:20:51 -0400 Tue, 12 May 2009 22:20:51 -0400 May 12, 2009 peter lin 1 ORM is CRUD http://www.theserverside.com/discussions/thread.tss?thread_id=54535 Tue, 12 May 2009 19:57:08 -0400 Tue, 12 May 2009 19:57:08 -0400 Tue, 12 May 2009 19:57:08 -0400 May 12, 2009 Jim Xie 9 Does not sound like ORM (more like DYI+NIH?) http://www.theserverside.com/discussions/thread.tss?thread_id=54535 ...]]> Tue, 12 May 2009 17:14:37 -0400 Tue, 12 May 2009 17:14:37 -0400 Tue, 12 May 2009 17:14:37 -0400 May 12, 2009 Tatu Saloranta 10 balance between object and relational database. http://www.theserverside.com/discussions/thread.tss?thread_id=54535 Table to wrap a database table metadata and Column a database table column. So they can programatically and concisely be used to construct a dynamic query SQL. That is the first different approach...]]> Mon, 11 May 2009 23:43:44 -0400 Mon, 11 May 2009 23:43:44 -0400 Mon, 11 May 2009 23:43:44 -0400 May 11, 2009 Jim Xie 11 Re: Eager loading on demand http://www.theserverside.com/discussions/thread.tss?thread_id=54535 Peter,

ORM can be approached in different ways. Dreamsource ORM is different from Hibernate or JPA on some aspects. Dreamsource ORM doesn't provide polymorphic queries for all subclasses in a hierarchy. But it provides the simplest...]]> Mon, 11 May 2009 22:39:47 -0400 Mon, 11 May 2009 22:39:47 -0400 Mon, 11 May 2009 22:39:47 -0400 May 11, 2009 peter lin 12 Eager loading on demand http://www.theserverside.com/discussions/thread.tss?thread_id=54535 Mon, 11 May 2009 20:13:42 -0400 Mon, 11 May 2009 20:13:42 -0400 Mon, 11 May 2009 20:13:42 -0400 May 11, 2009 Jim Xie 13 Re: find a record and its related records based on a primary obj http://www.theserverside.com/discussions/thread.tss?thread_id=54535 It doesn't support polymorphic queries. However, it supports eager loading of its dependencies using SQL left outer joins to eliminate 1+n queries. Please see Mon, 11 May 2009 19:35:14 -0400 Mon, 11 May 2009 19:35:14 -0400 Mon, 11 May 2009 19:35:14 -0400 May 11, 2009 peter lin 14