trait CoproductHint[T] extends AnyRef

A trait that can be implemented to disambiguate between the different options of a coproduct or sealed family.

T

the type of the coproduct or sealed family for which this hint applies

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AnyRef, Any
Known Subclasses
FieldCoproductHint, FirstSuccessCoproductHint
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Abstract Value Members

  1. abstract def from(cv: ConfigValue, name: String): Either[ConfigReaderFailures, Option[ConfigValue]]

    Given a ConfigValue for the sealed family, disambiguate and extract the ConfigValue associated to the implementation for the given class or coproduct option name.

    Given a ConfigValue for the sealed family, disambiguate and extract the ConfigValue associated to the implementation for the given class or coproduct option name.

    If cv is a config for the given class name, this method returns Right(Some(v)), where v is the config related to the specific class (possibly the same as cv). If it determines that cv is a config for a different class, it returns Right(None). If cv is missing information for disambiguation or has a wrong type, a Left containing a Failure is returned.

    cv

    the ConfigValue of the sealed family

    name

    the name of the class or coproduct option to try

    returns

    a Either[ConfigReaderFailure, Option[ConfigValue]] as defined above.

  2. abstract def to(cv: ConfigValue, name: String): Either[ConfigReaderFailures, ConfigValue]

    Given the ConfigValue for a specific class or coproduct option, encode disambiguation information and return a config for the sealed family or coproduct.

    Given the ConfigValue for a specific class or coproduct option, encode disambiguation information and return a config for the sealed family or coproduct.

    cv

    the ConfigValue of the class or coproduct option

    name

    the name of the class or coproduct option

    returns

    the config for the sealed family or coproduct wrapped in a Right, or a Left with the failure if some error occurred.

  3. abstract def tryNextOnFail(name: String): Boolean

    Defines what to do if from returns Success(Some(_)) for a class or coproduct option, but its ConfigConvert fails to deserialize the config.

    Defines what to do if from returns Success(Some(_)) for a class or coproduct option, but its ConfigConvert fails to deserialize the config.

    name

    the name of the class or coproduct option

    returns

    true if the next class or coproduct option should be tried, false otherwise.

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