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What is the meaning of these two required fields

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  What is the meaning of these two required fields Cecil Westerhof <Cecil@decebal.nl> - 2015-07-30 09:52 +0200
    Re: What is the meaning of these two required fields Jeff Higgins <jeff@invalid.invalid> - 2015-07-30 04:49 -0400
    Re: What is the meaning of these two required fields Arne Vajhøj <arne@vajhoej.dk> - 2015-07-30 21:09 -0400

#32204 — What is the meaning of these two required fields

I wrote my own annotation:
    // public
    @Documented
    @Constraint(validatedBy = {})
    @Target({ FIELD })
    @Retention(RUNTIME)
    @ReportAsSingleViolation
    @NotNull
    @Size(min = 1)
    public @interface NotEmpty {
        // default
        Class<?>[]                  groups()  default   { };
        String                      message() default  "Field should be filled";
        Class<? extends Payload>[]  payload() default  {};
    }

I understand the reason for message: that is the message for when
there is a validation constraint.

But what are the reasons for groups and payload?

-- 
Cecil Westerhof
Senior Software Engineer
LinkedIn: http://www.linkedin.com/in/cecilwesterhof

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#32205

On 07/30/2015 03:52 AM, Cecil Westerhof wrote:
> I wrote my own annotation:
>      // public
>      @Documented
>      @Constraint(validatedBy = {})
>      @Target({ FIELD })
>      @Retention(RUNTIME)
>      @ReportAsSingleViolation
>      @NotNull
>      @Size(min = 1)
>      public @interface NotEmpty {
>          // default
>          Class<?>[]                  groups()  default   { };
>          String                      message() default  "Field should be filled";
>          Class<? extends Payload>[]  payload() default  {};
>      }
>
> I understand the reason for message: that is the message for when
> there is a validation constraint.
>
> But what are the reasons for groups and payload?
>
<http://beanvalidation.org/1.1/spec/#constraintsdefinitionimplementation-constraintdefinition-properties>


<http://docs.jboss.org/hibernate/validator/5.1/reference/en-US/html/>
And just ignore the Hibernate extensions if you like.

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#32222

On 7/30/2015 3:52 AM, Cecil Westerhof wrote:
> I wrote my own annotation:
>      // public
>      @Documented
>      @Constraint(validatedBy = {})
>      @Target({ FIELD })
>      @Retention(RUNTIME)
>      @ReportAsSingleViolation
>      @NotNull
>      @Size(min = 1)
>      public @interface NotEmpty {
>          // default
>          Class<?>[]                  groups()  default   { };
>          String                      message() default  "Field should be filled";
>          Class<? extends Payload>[]  payload() default  {};
>      }
>
> I understand the reason for message: that is the message for when
> there is a validation constraint.
>
> But what are the reasons for groups and payload?

I believe that the default value can not be null so an empty
array is what is possible.

Arne

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