Dynamic Entity « Entity « JPA Q&A





1. Dynamic Entities in JPA    coderanch.com

Hi All! First of all, thanks for a great forum. I have learned a lot in here, so now I thought I would ask a question of my own: Is it in some way possible to create an entity at runtime to hold the result from a given query, in JPA? I am doing a webcrawling project, where I retrieve data ...

2. Dynamic Entities on Hibernate    forum.hibernate.org

Hi buddies! I'm programming with Hibernate and EJB 3.0 on JBoss 6.0. In my project, I have some tables that contains the definition for other tables (as table name, fields, data types, etc.). And I need to create these entities dynamically, ie at runtime. I found code Class.forName and EclipseLink and I think this is not what I need, I need ...

3. Dynamic entities for hibernate    forum.hibernate.org

Hi everybody, I have some troubles and I need your help. It turns out that I need to create run-time entities that adapt to user-defined structures, currently I build a runtime class with annotations, I compile the dynamic class and make the instance with the Class.forName method, in addition, I set the hibernate session to add the class using: configuration.addAnnotatedClass ( ...

5. Dynamic instantiation with entity parameter    forum.hibernate.org

6. How to create Dynamic Proxy from entity class and idValue    forum.hibernate.org

public class User { ... private Address address; public Address getAddress() { return address; } public void setAddress(Address address) { this.address = address; } ... } public class ...

7. "instance not of expected entity type", dynamic-ma    forum.hibernate.org

Newbie Joined: Mon Sep 12, 2005 5:18 pm Posts: 6 Location: Cambridge, MA, USA I am using dynamic-map persistence. I have a mapping with subclass elements and a discriminator. Queries execute just fine and return me a logical Map with the right elements for each subclass. However, when I try to create a new Map and persist it, I get "org.hibernate.HibernateException: ...

8. Dynamic Entities    forum.hibernate.org

Hi all, I've been using Hibernate for a short while on defined java objects but would like to know how I could use it where the fields required for a particular entity are liable to change. I want to implement a feature where a user can add a field name and corresponding data type. For example, if I have a person ...

9. How to handle Metadata driven/dynamic entities in Hibernate    forum.hibernate.org

The current version of my application has fixed set of entities as it is developed for use by users of a specific (pharmaceutical) domain. Now we wish to enhance it to be used by users from other domains (finance, instrumentation).We need to provide a metadata driven system, where entities will be decided by the administrator of application on the fly. The ...





10. "could not determine type of dynamic entity"    forum.hibernate.org

Hi, I have a very simple class as follows: public class MyClass implements Map { private int mId; public ABID getUid() { return mId; } public void setUid(ABID id) { mId = id; } } Okay, I know it's weird to implement Map interface, I'm dealing with lots of legacy code(this is a simplified class) and I can't change them. ...