db4o Developer Community

Hello all,

Is there a way to detach or clone an object retrieved from the db and reattach it back?

This was a question asked of me after requesting a doNotSave method be added to the Eclipse editor interface.  Databinding frameworks update the model before a user commits the changed object. 
When the user selects 'No' to the save dialog there is no easy method to refresh the object from the db since it is cached in a viewer of some type.  If interested: https://bugs.eclipse.org/bugs/show_bug.cgi?id=122260

Yes.

Please look into:

ExtObjectContainer#purge(object);

ExtObjectContainer#getID(object);

ExtObjectContainer#bind(object, id)

 

To get a transient clone of a persisted object, you can also use:

ExtObjectContainer#peekPersisted(object, depth, committed);

 

Thanks Carl.  I will give this a test.  Once again, this is the coolest db anywhere!