Bug 332258

Description Danny Ju 2010-12-09 17:24:23 EST

Build Identifier:  M20100909-0800

From  
http://www.eclipse.org/forums/index.php?t=rview&goto=644199#msg_644199

I have a property list which has following spec:

public interface IModulePublishingTarget extends IModelElement,IRemovable {
ModelElementType TYPE = new ModelElementType( IModulePublishingTarget.class );
// *** Name ***
@Label( standard = "Target Name" )
@NoDuplicates
...
}

Although 
@NoDuplicates
is specified, in the rendered table UI, adding duplicated 
entry does not prompt error. 


*******************************
The @NoDuplicates annotation doesn't quite work in the way you are thinking. It is applied to the list property (not the contained value) and acts as a hint to rendering rather than a validation provider. 

The behavior you are looking for is accomplished as follows:

@DependsOn( "*/Name" )
@Validator( impl = UniqueValueValidator.class )

The UniqueValueValidator class is part of Sapphire. See IContact.Connections in the samples for an example of this.

This looks like something that can be improved. I think your expectation of behavior is actually more intuitive than the current approach. Please open an enhancement request to improve the usability of the @NoDuplicates/UniqueValueValidator scenario.


Reproducible: Always