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  • package validation

    A set of cats related data types for validation specific to our needs that included data driven validation while still supporting multple styles such as DSL or non-DSL.

    A set of cats related data types for validation specific to our needs that included data driven validation while still supporting multple styles such as DSL or non-DSL.

    Overview

    By using cats you can compose on the Result or the Validator depending on your needs. Some additonal methods for defining a Validator are provided using the Tester classes--smart constructors for Validator.

    Definition Classes
    data
  • trait Algebra[F[_]] extends AnyRef

    A validation concept involves a function that evaluates a value and the ability to create a success or failure based on an input type wrapped in F.

    A validation concept involves a function that evaluates a value and the ability to create a success or failure based on an input type wrapped in F. F must be able to express the concept of success or failure. Note that at this level, F could be a product type or sum type (coproduct). Usually they are sum types.

    Should we consider message gathering to be a "logging" activity and use a writer monad?

    Definition Classes
    validation
  • Logic

trait Logic extends AnyRef

Since we can fail and succeed, add logic support. This is really a Semigroup "combine" for a specific logic operation. Explicitly use or create an import for them as needed. We could defined an isValid type method in this trait but that's a bit of a code smell that we are using procedural logic and we can use these semigroups in other places and algorithms.

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  1. abstract val AndSemigroupK: SemigroupK[F]
  2. abstract val OrSemigroupK: SemigroupK[F]

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    (Since version ) see corresponding Javadoc for more information.

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