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Session.load problem

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crazypisces

Post subject: Session.load problem

Posted: Mon Apr 11, 2005 12:32 am

Newbie

Joined: Thu Nov 13, 2003 5:08 am
Posts: 2

hi everyone,
I have a problem when load an entity and it's associations.
I have a PO named User which has a many-to-many association with another PO named Role. The id of User is username and the id of Role is rolename. There is one User instance identified by roy is stored which has two roles. When I load a User using session.load(User.class, "roy"), everything is fine, but when load using session.load(User.class, "Roy"), the User is loaded but the associated Role instances are missing! Anybody knows how this happen and how to solve it?

thanks in advance

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drj

Post subject:

Posted: Mon Apr 11, 2005 2:44 am

Expert

Joined: Fri Nov 07, 2003 4:24 am
Posts: 315
Location: Cape Town, South Africa

Are you sure that you not just getting a proxy back in the latter case?

What happens if you use session.get(...)

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drj

Post subject:

Posted: Mon Apr 11, 2005 2:47 am

Expert

Joined: Fri Nov 07, 2003 4:24 am
Posts: 315
Location: Cape Town, South Africa

What I mean by that is that

Code:

session.load(...)

assumes the instance exists whereas

Code:

session.get(...)

will return null if the instance is not present

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crazypisces

Post subject:

Posted: Mon Apr 11, 2005 5:24 am

Newbie

Joined: Thu Nov 13, 2003 5:08 am
Posts: 2

I use Hibernate 2.1 Console to test.

Code:

session.clear();
session.get(User.class, "roy");

every thing is ok, but

Code:

session.clear();
session.get(User.class, "Roy");

still can not get the roles.

besides, when get entity using roy, the property username of the resulting User instance is roy, but when using Roy, this property is Roy.

I use Hibernate 2.1.8 and MySQL 4.1 which is case-insensitive.

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