[Hibernate-issues] [Hibernate-JIRA] Closed: (HB-370) load(Class, Serializable) behaves differently than load(Object, Serializable)

[<leg...@at...>]

Message:

   The following issue has been closed.

   Resolver: Gavin King
       Date: Mon, 29 Sep 2003 4:26 PM

This is correct and essential functionality. Hibernate guarantess transaction-scoped identity.
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View the issue:

  http://opensource.atlassian.com/projects/hibernate/secure/ViewIssue.jspa?key=HB-370


Here is an overview of the issue:
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        Key: HB-370
    Summary: load(Class, Serializable) behaves differently than load(Object, Serializable)
       Type: Bug

     Status: Closed
   Priority: Minor
 Resolution: REJECTED

    Project: Hibernate2
 Components: 
             core
   Versions:
             2.0.3

   Assignee: 
   Reporter: Bernard Ligny

    Created: Mon, 29 Sep 2003 9:20 AM
    Updated: Mon, 29 Sep 2003 4:26 PM
Environment: Win Xp, JDK 1.4

Description:
I noticed two different behaviours depending on the fact that I am using the session.load() with an Object or a Class as first parameter.

The problem appears when trying to load more than once a same persistent instance in the same session:

Example 1: crash
=========

tx = session.beginTransaction();
Object obj1 = new MyObjectClass();
session.load(obj1, new Long(123));
Object obj2 = new MyObjectClass();
session.load(obj2, new Long(123));
...

=> throws an Hibernate Exception for 2nd load
("already an object with that id in session")


Example 2 : works perfectly !
=========
(the same code but using the other load signature)

tx = session.beginTransaction();
Object obj1 = session.load(MyObjectClass, new Long(123));
Object obj2 = session.load(MyObjectClass, new Long(123));
...


***

The annoying point is that the not-working example is the one in the "Root Persistent Class" design pattern:
public void refresh() throws HibernateException, SQLException {
HibernateSession.currentSession().load(this, _id);
   }



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