lsp_isp__isp_all_in_one.kt

interface Repository {
    // db:
    fun select(id: Int): SoftwareEngineer?
    fun insert(engineer: SoftwareEngineer)

    // api:
    fun get(id: Int): SoftwareEngineer?
    fun post(engineer: SoftwareEngineer)
}

class LocalEngineersCache : Repository {

    override fun select(id: Int): SoftwareEngineer? {
        // actual implementation
    }

    override fun insert(engineer: SoftwareEngineer) {
        // actual implementation
    }

    override fun get(id: Int): SoftwareEngineer? {
        throw UnsupportedOperationException()
    }

    override fun post(engineer: SoftwareEngineer) {
        throw UnsupportedOperationException()
    }
}