GeneralPurposeCombinators

Type Members

1. class And[T] extends Validator[T]

   

   A combinator that takes a chain of predicates and implements logical AND between them.

   A combinator that takes a chain of predicates and implements logical AND between them.

   T

   The type on which this validator operates.

2. class EqualTo[T] extends Validator[T]

   

   A validator that succeeds only if the validated object is equal to the specified value.

   A validator that succeeds only if the validated object is equal to the specified value. Respects nulls and delegates equality checks to java.lang.Object.equals.

3. class Fail[T] extends Validator[T]

   

   A validator that always fails with a specific violation.

   A validator that always fails with a specific violation.

   T

   The type on which this validator operates.

4. class IsNotNull extends BaseValidator[AnyRef]

   

   A validator that succeeds only if the provided object is not null.

5. class IsNull extends BaseValidator[AnyRef]

   

   A validator that succeeds only if the provided object is null.

6. class NilValidator[T] extends Validator[T]

   

   A validator that always succeeds.

   A validator that always succeeds.

   T

   The type on which this validator operates.

7. class NotEqualTo[T] extends Validator[T]

   

   A validator that succeeds only if the validated object is not equal to the specified value.

   A validator that succeeds only if the validated object is not equal to the specified value. Respects nulls and delegates equality checks to java.lang.Object.equals.

8. class Or[T] extends Validator[T]

   

   A combinator that takes a chain of predicates and implements logical OR between them.

   A combinator that takes a chain of predicates and implements logical OR between them. When all predicates fail, a com.wix.accord.GroupViolation is produced; the predicates comprise the group's children.

   T

   The type on which this validator operates.

9. class Valid[T] extends Validator[T]

   

   A validator which merely delegates to another, implicitly available validator.

   A validator which merely delegates to another, implicitly available validator. This is necessary for the description generation to work correctly, e.g. in the case where:

   case class Person( firstName: String, lastName: String ) case class Classroom( teacher: Person, students: Seq[ Person ] )

   implicit val personValidator = validator[ Person ] { p => p.firstName is notEmpty p.lastName is notEmpty }

   implicit val classValidator = validator[ Classroom ] { c => c.teacher is valid c.students.each is valid c.students have size > 0 }

   c.teacher actually delegates to the personValidator, which means a correct error message would be a com.wix.accord.GroupViolation aggregating the actual rule violations.

   T

   The object type this validator operates on. An implicit com.wix.accord.Validator over type T must be in scope.