package ejava.jpa.example.validation;
   
   import java.lang.annotation.Documented;
   import java.lang.annotation.Retention;
   
   import java.lang.annotation.Target;
   import static java.lang.annotation.ElementType.*;
   import static java.lang.annotation.RetentionPolicy.*;
   import javax.validation.Constraint;
  import javax.validation.OverridesAttribute;
  import javax.validation.Payload;
  import javax.validation.ReportAsSingleViolation;
  import javax.validation.constraints.NotNull;
  import javax.validation.constraints.Pattern;
  import javax.validation.constraints.Size;
  
  /**
   * Defines a validation composition
   */
  @NotNull
  @Size
  @Pattern(regexp="")
  @ReportAsSingleViolation
  
  @Documented
  @Constraint(validatedBy={})
  @Target({METHOD, FIELD, ANNOTATION_TYPE, CONSTRUCTOR, PARAMETER})
  @Retention(RUNTIME)
  public @interface ValidName {
  	String message() default "invalid name";
  	Class<?>[] groups() default {};
  	Class<? extends Payload>[] payload() default{};
  	@OverridesAttribute(constraint=Size.class, name="min") int min() default 0;
  	@OverridesAttribute(constraint=Size.class, name="max") int max() default Integer.MAX_VALUE;
  	@OverridesAttribute(constraint=Pattern.class, name="regexp") String regexp() default ".*";
  
  	/**
  	 * Defines an array of annotations so that more than one can be applied.
  	 */
  	@Target({METHOD, FIELD, ANNOTATION_TYPE, CONSTRUCTOR, PARAMETER})
  	@Retention(RUNTIME)
  	@Documented
  	public @interface List {
  		ValidName[] value();
  	} 
  }