Annotation Interface Implementation.Validator

Enclosing class:

Implementation

@Target(TYPE)
@Retention(RUNTIME)
@Scope
public static @interface Implementation.Validator

A class annotated with Implementation.Validator will be automatically searched for and instantiated as a Validator by guice.

Example

@Target(ElementType.PARAMETER)
@Retention(RetentionPolicy.RUNTIME)
@Constraint(String.class)
public @interface MaxString {
    int value();
    String message() default "The given String is too long";
}

@Validator(annotation = MaxString.class)
public class MaxStringLengthValidator implements Validator {

    @Override
   public boolean apply(Object argument, Object annotation, InvocationContext<? context) {
        MaxString maxString = (MaxString) annotation;
        return String.valueOf(argument).length() < maxString.value();
    }
}

Required Element Summary

Required Elements

Modifier and Type	Required Element	Description
Class<? extends Annotation>	annotation	Gets the annotation the Validator should be mapped to.

Element Details

annotation

Class<? extends Annotation> annotation

Gets the annotation the Validator should be mapped to.

Returns:

the annotation the Validator should be mapped to