Generating boilerplate with scalameta.
For example input case class:
package example
import java.time.Instant
import java.util.UUID
case class BankTransaction(
id: UUID,
value: Long,
createDate: Instant,
modifiedDate: Instant,
cardNumber: String,
description: String
)
running sbt "run -o anyval" generates case classes extending AnyVal for each field of the input class. It also outputs original case class with replaced fields types:
case class BankTransactionId(value: UUID) extends AnyVal
case class BankTransactionValue(value: Long) extends AnyVal
case class BankTransactionCreateDate(value: Instant) extends AnyVal
case class BankTransactionModifiedDate(value: Instant) extends AnyVal
case class BankTransactionCardNumber(value: String) extends AnyVal
case class BankTransactionDescription(value: String) extends AnyVal
case class BankTransaction(
id: BankTransactionId,
value: BankTransactionValue,
createDate: BankTransactionCreateDate,
modifiedDate: BankTransactionModifiedDate,
cardNumber: BankTransactionCardNumber,
description: BankTransactionDescription
)
running sbt "run -o slick" generates (approximate) slick table code for this case class
case class BankTransactions(tag: BaseTable.Tag) extends BaseTable[BankTransaction](tag, "bank_transactions") {
import profile.api._
def id: Rep[BankTransactionId] = column[BankTransactionId]("id")
def value: Rep[BankTransactionValue] = column[BankTransactionValue]("value")
def createDate: Rep[BankTransactionCreateDate] = column[BankTransactionCreateDate]("create_date")
def modifiedDate: Rep[BankTransactionModifiedDate] = column[BankTransactionModifiedDate]("modified_date")
def cardNumber: Rep[BankTransactionCardNumber] = column[BankTransactionCardNumber]("card_number")
def description: Rep[BankTransactionDescription] = column[BankTransactionDescription]("description")
override def * : ProvenShape[BankTransaction] = (id, value, createDate, modifiedDate, cardNumber, description) <> (BankTransaction.apply _.tupled, BankTransaction.unapply)
}
sbt "run [options]"
-p, --path <path>
-o, --output <output type: anyval or slick>
If no path parameter is given, hardcoded example case class is used. If no output parameter is given, default output option is anyval.