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Drjacky/ResultState.kt

Created November 7, 2018 16:16
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  1. Drjacky created this gist Nov 7, 2018.
    20 changes: 20 additions & 0 deletions ResultState.kt
    View file
    Original file line number Diff line number Diff line change
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    /**
    * A wrapper for database and network states.
    */
    sealed class ResultState<T> {

    /**
    * A state of [data] which shows that we know there is still an update to come.
    */
    data class Loading<T>(val data: T) : ResultState<T>()

    /**
    * A state that shows the [data] is the last known update.
    */
    data class Success<T>(val data: T) : ResultState<T>()

    /**
    * A state to show a [throwable] is thrown beside the [lastData] which is cached.
    */
    data class Error<T>(val throwable: Throwable, val lastData: T?) : ResultState<T>()
    }