javax.validation.constraints
Annotation Type Null

@Target(value={METHOD,FIELD,ANNOTATION_TYPE})
@Retention(value=RUNTIME)
@Documented
@Constraint(validatedBy={})
public @interface Null

The annotated element must be null. Accepts any type.

Author:

Emmanuel Bernard

Optional Element Summary

java.lang.Class<?>[]	groups
java.lang.String	message

message

public abstract java.lang.String message

Default:

"{constraint.null}"

groups

public abstract java.lang.Class<?>[] groups

Default:

{}