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1   package model.validation;
2   
3   import javax.validation.Constraint;
4   import javax.validation.Payload;
5   import java.lang.annotation.*;
6   
7   
8   /**
9    * L'identificativo deve corrispondere a un ban esistente
10   * @see BanExistsValidator
11   */
12  @Target({ElementType.FIELD, ElementType.METHOD, ElementType.PARAMETER,
13          ElementType.ANNOTATION_TYPE})
14  @Retention(RetentionPolicy.RUNTIME)
15  @Constraint(validatedBy = BanExistsValidator.class)
16  @Documented
17  public @interface BanExists {
18      String message() default "Ban must exist";
19  
20      Class<?>[] groups() default {};
21  
22      Class<? extends Payload>[] payload() default {};
23  }