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Sub-task
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Resolution: Unresolved
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Major
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2.1.1.Final
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None
Splitting FORGE-1667 so it's easier to implement step by step
See : NewAnnotationCommand and NewAnnotationCommandTest
This allows to add extra features to the constraint-new-annotation command.
Adding resource bundle message
At the moment, the command create a constraint annotation with no implementation, and a default error message. It would be good to add a resource bundle key for the message :
constraint-new-annotation --named URL
@Documented
@Constraint(validatedBy = {})
@Target( { METHOD, FIELD, ANNOTATION_TYPE, CONSTRUCTOR, PARAMETER })
@Retention(RUNTIME)
@ReportAsSingleViolation
public @interface URL {
String message() default "{org.mycompany.myproject.constraints.URL.message}";
Class<?>[] groups() default { };
Class<? extends Payload>[] payload() default { };
@Target( { METHOD, FIELD, ANNOTATION_TYPE, CONSTRUCTOR, PARAMETER })
@Retention(RUNTIME)
@Documented
public @interface List {
URL[] value();
}
}
Then, it creates a message entry in the ValidationMessages.properties file (the file is created under resources directory if it doesn't already exist)
org.mycompany.myproject.constraints.URL.message=invalid URL
We could have attributes to the command to change the target
constraint-new-annotation --named URL --targets METHOD FIELD
This will generate the following code only with @Target METHOD, FIELD
@Documented
@Constraint(validatedBy = {})
@Target( { METHOD, FIELD })
@Retention(RUNTIME)
@ReportAsSingleViolation
public @interface URL {
String message() default "{org.mycompany.myproject.constraints.URL.message}";
Class<?>[] groups() default { };
Class<? extends Payload>[] payload() default { };
@Target( { METHOD, FIELD })
@Retention(RUNTIME)
@Documented
public @interface List {
URL[] value();
}
}
Constraint with an implementation
The constraint-new-annotation can have a validatedBy and a type attribute, it will then create a constraint annotation, an error message, and a default implementation :
constraint-new-annotation --named URL --validatedBy URLValidator --type String
The constraint will now refer to the implementation class URLValidator.class :
@Documented
@Constraint(validatedBy = URLValidator.class)
@Target( { METHOD, FIELD, ANNOTATION_TYPE, CONSTRUCTOR, PARAMETER })
@Retention(RUNTIME)
@ReportAsSingleViolation
public @interface URL {
String message() default "{org.mycompany.myproject.constraints.URL.message}";
Class<?>[] groups() default { };
Class<? extends Payload>[] payload() default { };
@Target( { METHOD, FIELD, ANNOTATION_TYPE, CONSTRUCTOR, PARAMETER })
@Retention(RUNTIME)
@Documented
public @interface List {
URL[] value();
}
}
And the default implementation will look like :
public class URLValidator implements ConstraintValidator<URL, String> { @Override public void initialize(URL url) { } @Override public boolean isValid(String value, ConstraintValidatorContext context) { return false; } }
- is related to
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- relates to
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- Closed
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