com.wix.accord.combinators

CollectionCombinators

trait CollectionCombinators extends AnyRef

Combinators that operate on collections and collection-like structures.

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combinators
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Type Members

  1. class Empty[T <: AnyRef] extends NullSafeValidator[T]

    A validator that operates on objects that can be empty, and succeeds only if the provided instance is empty.

  2. type HasEmpty = AnyRef { def isEmpty: Boolean }

    A structural type representing any object that can be empty.

  3. case class In[T](set: Set[T], prefix: String) extends BaseValidator[T] with Product with Serializable

    A validator that succeeds only if the object exists in the target collection.

  4. class NotEmpty[T <: AnyRef] extends NullSafeValidator[T]

    A validator that operates on objects that can be empty, and succeeds only if the provided instance is not empty.

Value Members

  1. final def !=(arg0: AnyRef): Boolean

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

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  3. final def ##(): Int

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

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

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  6. object Distinct extends Validator[Traversable[_]]

    A validator that succeeds only if the provided collection has no duplicate elements.

  7. final def asInstanceOf[T0]: T0

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  8. def clone(): AnyRef

    Attributes
    protected[java.lang]
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    @throws( ... )

  9. final def eq(arg0: AnyRef): Boolean

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  10. def equals(arg0: Any): Boolean

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  11. def finalize(): Unit

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    protected[java.lang]
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    @throws( classOf[java.lang.Throwable] )

  12. implicit def genericTraversableOnce2HasEmpty[T](gto: T)(implicit ev: (T) ⇒ GenTraversableOnce[_]): HasEmpty

    An implicit conversion to enable any collection-like object (e.

    An implicit conversion to enable any collection-like object (e.g. strings, options) to be handled by the com.wix.accord.combinators.CollectionCombinators.Empty and com.wix.accord.combinators.CollectionCombinators.NotEmpty combinators.

    java.lang.String does not directly implement isEmpty (in practice it is implemented in scala.collection.IndexedSeqOptimized, via an implicit conversion and an inheritance stack), and this is a case where the Scala compiler does not always infer structural types correctly. By requiring a view bound from T to scala.collection.GenTraversableOnce we can force any collection-like structure to conform to the structural type com.wix.accord.combinators.HasEmpty, and by requiring a view bound from T to com.wix.accord.combinators.HasEmpty at the call site (e.g. com.wix.accord.dsl.empty) we additionally support any class that directly conforms to the structural type as well.

    T

    The type that conforms, directly or implicitly, to com.wix.accord.combinators.HasEmpty.

    gto

    An object that is, or is implicitly convertible to, scala.collection.GenTraversableOnce.

    returns

    The specified object, strictly-typed as com.wix.accord.combinators.HasEmpty.

  13. final def getClass(): Class[_]

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  14. def hashCode(): Int

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  15. final def isInstanceOf[T0]: Boolean

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  16. final def ne(arg0: AnyRef): Boolean

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  17. final def notify(): Unit

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  18. final def notifyAll(): Unit

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  19. final def synchronized[T0](arg0: ⇒ T0): T0

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  20. def toString(): String

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  21. final def wait(): Unit

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    @throws( ... )

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

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    @throws( ... )

  23. final def wait(arg0: Long): Unit

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    @throws( ... )

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