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You can use form binding, and a form validator, to validate dependent attributes. If you don't want to add a Transient field to your Entity class, you can wrap the Entity by a Ui object (UiUser in the example below).

Please refer to this fiddle where I provide an example putting it all together.

You can use form binding, and a form validator, to validate dependent attributes. If you don't want to add a Transient field to your Entity class, you can wrap the Entity by a Ui object (UiUser in the example below).

Please refer to this fiddle where I provide an example putting it all together.