1. HIbernate loads subclasses along with classes stackoverflow.comI am using Hibernate to connect to my database. I have an inheritance structure in my application.The problem is that when i do a query like "from Animal", it does a left ... |
2. Problem loading subclasses of hibernate entity stackoverflow.comI have an en Entity A which is super class for entities B and C, A is annotated with @Inheritance(strategy = InheritanceType.JOINED). Then another Entity X which has relation to A. I set ... |
3. lazy loading of subclass in hibernate coderanch.comI have a super class Disc and two child classes : AudioDisc and VideoDisc. I am trying both the strategy Union subclass and join Subclass but i could not find any way to lazy load the subClass. My classes are something like this : public class Reservation { private int id ; private Set |
4. lazy loading of subClass forum.hibernate.orgpublic class Reservation { private int id ; private Set |
5. 1) caching strategies; 2) collection of subclasses loading forum.hibernate.orgWould be really grateful for any help - 1) Now I am doing evaluation of several OMR products and Hibernate seems to be the best. But our project badly needs some caching. As far as I understand Hibernate supports 3 caching strategies for process (JVM) level cache - read-write, nonstrict-read-write and read-only. I understand the purpose of each strategy but could ... |
6. Hibernate Bug in joined-subclass lazy loading w outer-join?? forum.hibernate.orgAuthor Message nodje Post subject: Hibernate Bug in joined-subclass lazy loading w outer-join?? Posted: Tue Apr 06, 2004 11:22 am Regular Joined: Fri Nov 07, 2003 6:31 am Posts: 104 Location: Beijing, China Hi everyone, I've got a JDBC exception from a SQL request triggered by the lazy loading of an object that has a set of joined-subclass component, ... |
7. Loading subclass when suppose to load superclass forum.hibernate.orgHi, I have Class A and Class B that extends Class A. Both of them have its own hbm mapping file. Mapping A contains a very big collection of object graph but mapping B is a flat one. Both A and B points to the same table. The problem is when I try to load A from the database, hibernate is ... |
8. session.load() and joined-subclass error forum.hibernate.orgHi all, i need some explanation of the following error: Code: IllegalArgumentException occurred calling getter of com.tecdoc.db_update.hibernate.Bean_Update_Installation.idInstall and java.lang.IllegalArgumentException: object is not an instance of declaring class This error occurs when i call this method: Code: public static Bean_Update_Installation loadInstall(Integer id) throws IOException, ServletException, HibernateException ... |
9. Load object state into a unmapped subclass forum.hibernate.org |
10. load() and get() return wrong subclass? forum.hibernate.orgHibernate version: 2.1.7c Hi there, I have a class Animal and two subclasses Cat and Dog: Animal -->Cat -->Dog using joined subclasses. In the database, there is one instance of Cat with id 1 and one instance of Dog with id 2. When I execute: Cat cat = (Cat) session.load(Cat.class, 1); Dog dog = (Dog) session.load(Dog.class, 2); everything is fine. However, ... |
11. Loading subclass of an abstract class - FAILS forum.hibernate.orgOkay. Here is my hibernate mapping file. I'm just keeping it simple for now: Code: |
12. Subclasses, proxies and lazy-loading - How can it be done? forum.hibernate.orgA different solution for my problem is to use Interfaces for both (the abstract class and it's subclasses: IAbstractClass, IConcrete1 and IConcrete2) and tell hibernate to use these ( |
13. lazy class loading ignores subclass Lifecycle implementation forum.hibernate.orgHi all, Assume: - SubClassA extends BaseClass. - SubClassA implements Lifecycle but BaseClass does not. If BaseClass is mapped as lazy=true (default) (and is not proxied, not final etc.) then you get back a CGLIB enhanced class, and the Lifecycle onLoad event is *not* called. If you set lazy=false then you get back the actual subclass and the events are called. ... |
14. problem with joined subclasses loading forum.hibernate.orgI have base table Account that maps to ACCOUNT table. I have to joined subclasses Subscriber that mapps to SUBSCRIBER table and Publisher that maps to PUBLISHER table. Both Subscriber and Publisher are in one-to-one relationship with Account. By business, it is possible that Subscrbier can be Publisher at once, so that the same id can be both in SUBSCRIBER and ... |
15. Subclass and lazy loading forum.hibernate.orgHello, I have a little problem of lazy loading... I have an object Document that contain an object Method (the Method object is a super class. MethodPKI is a sublass of Method). When I do Document.getMethod, I expect to receive a MethodPKI object but I receive a Method object. To have the good object, I must do Document.getMethod and after this, ... |
16. Can't load joined-subclass when identifier is Long forum.hibernate.orgDear all, I get an ObjectNotFoundException when loading a subclass with a Long as primary key. I have the following class and subclasses Code: public class Project { Long id; String name; String client; // getter and setters } public class ProjectHR extends Project { ... |
17. Asynchronous subclass loading. forum.hibernate.orgHi, I've chosen a "Table per subclass, using a discriminator" strategy to map inheritance. Everything works fine but I have one question about the loading of the subclass properties. Actually the "lazy" attribute of the "subclass" element seems to have no effects on the sql queries generated, no matter the "fecth" mode ("select" or "join"). The subclass is always loaded with ... |
18. Retrieving concrete subclass with session.load() forum.hibernate.orgNewbie Joined: Wed Jun 22, 2005 12:08 pm Posts: 4 Hibernate version: 3.1.2, Hibernate Annotations: 3.1b8 Name and version of the database you are using: Postgresql 8.1 I'm having a bit of a strange problem with polymorphism. I have an abstract base class Message and 2 concrete subclasses Post and Reply. Each message references the Post that began the message thread, ... |
19. Problem loading Set of subclass (Table per Subclass) forum.hibernate.orgI have mapped an inheritance hierarchy using the 'Table per subclass' strategy for the classes Child and Parent (Child extends Parent). The subclass Child has a primary key association to the Parent superclass making it a one-to-one association. There is a third class that I am calling A. A has a bidirectional one-to-many relationship with Child. Code: @Entity class A { ... |
20. DetachedCriteria.forClass also loads the subclass as well forum.hibernate.orgHi All, I have two classes A and B, with class B is the sub class of class A. These two classes are mapped to two tables (table TA and TB) independently. Right now looks like if I want to do a query to get just the records in table TA which Class A maps against. When I use the following ... |
21. Loading hibernate objects as defined subclass forum.hibernate.orgHello, I have the following question using hibernate HorsesDBO is my hibernate-mapping class where all the fields from my table are mapped to. From HorsesDBO inherit some classes that provide only some special views on my dbo. HorsesRaceComputer extends HorsesDBO computes all the necessary data while a race (but has no further mapped attributes). HorsesDrawer extends HorsesDBO is responsible for graphical ... |
22. Lazy Loading subclasses (table per subclass discriminator) forum.hibernate.orgI'm trying to find out how to lazily load a subclass when using the table per subclass inheritance mapping using a discriminator column. The reason being, in about half of the time, we don't want or need to access the properties of the subclasses, we simply need the properties from the parent class. But it seems that, even specifying "lazy=true" on ... |
23. Table per subclass and lazy loading forum.hibernate.orgNewbie Joined: Mon Feb 16, 2009 12:13 pm Posts: 1 Need help with Hibernate? Read this first: http://www.hibernate.org/ForumMailingli ... AskForHelp Hibernate version: 3.3.1.GA Mapping documents: Code: |