| Interface | Description | 
|---|---|
| ASTValidateableHelper | |
| Constrained | A interface for something that is constrained by various criteria | 
| ConstraintsEvaluator | Evaluates and returns constraints. | 
| Trait | Description | 
|---|---|
| Validateable | A trait that can be applied to make any object Validateable | 
| Class | Description | 
|---|---|
| ConstrainedDelegate | Bridge from the old API to the new | 
| DefaultASTValidateableHelper | |
| DeferredBindingActions | Binding operations that are deferred until either validate() or save() are called. | 
| ValidationErrors | Models validation errors in a Grails application. | 
| Exception | Description | 
|---|---|
| ValidationException | Thrown when validation fails during a .save(). |