play.api.data.validation

Constraint

object Constraint extends Serializable

This object provides helpers for creating Constraint values.

For example:

  val negative = Constraint[Int] {
    case i if i < 0 => Valid
    case _ => Invalid("Must be a negative number.")
  }
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  1. def != (arg0: AnyRef): Boolean

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  2. def != (arg0: Any): Boolean

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  3. def ## (): Int

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  4. def == (arg0: AnyRef): Boolean

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  5. def == (arg0: Any): Boolean

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  6. def apply [T] (name: String, args: Any*)(f: (T) ⇒ ValidationResult): Constraint[T]

    Creates a new named constraint from a validation function.

    Creates a new named constraint from a validation function.

    name

    the constraint name

    args

    the constraint arguments, used to format the constraint name

    f

    the validation function

    returns

    a constraint

  7. def apply [T] (f: (T) ⇒ ValidationResult): Constraint[T]

    Creates a new anonymous constraint from a validation function.

    Creates a new anonymous constraint from a validation function.

    f

    the validation function

    returns

    a constraint

  8. def asInstanceOf [T0] : T0

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  9. def clone (): AnyRef

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  10. def eq (arg0: AnyRef): Boolean

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  11. def equals (arg0: Any): Boolean

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  12. def finalize (): Unit

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  13. def getClass (): java.lang.Class[_]

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  14. def hashCode (): Int

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  15. def isInstanceOf [T0] : Boolean

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  16. def ne (arg0: AnyRef): Boolean

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  17. def notify (): Unit

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  18. def notifyAll (): Unit

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  19. def readResolve (): AnyRef

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  20. def synchronized [T0] (arg0: ⇒ T0): T0

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  21. def toString (): String

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  22. def wait (): Unit

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  23. def wait (arg0: Long, arg1: Int): Unit

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  24. def wait (arg0: Long): Unit

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Inherited from Serializable

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