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• CassandraMapperConversions.scala

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io.getquill.context.cassandra.encoding.CassandraMapperConversions.scala Maven / Gradle / Ivy

package io.getquill.context.cassandra.encoding

import io.getquill.MappedEncoding

trait CassandraMapperConversions extends CassandraMapperConversionsLowPriorityImplicits {

  implicit def cassandraIdentityMapper[Cas](implicit cas: CassandraType[Cas]): CassandraMapper[Cas, Cas] =
    CassandraMapper((i, _) => i)

  implicit def cassandraMapperEncode[T, Cas](implicit
    m: MappedEncoding[T, Cas],
    cas: CassandraType[Cas]
  ): CassandraMapper[T, Cas] = CassandraMapper((i, _) => m.f(i))

  implicit def cassandraMapperDecode[T, Cas](implicit
    m: MappedEncoding[Cas, T],
    cas: CassandraType[Cas]
  ): CassandraMapper[Cas, T] = CassandraMapper((i, _) => m.f(i))
}

trait CassandraMapperConversionsLowPriorityImplicits {

  implicit def cassandraMapperEncodeRec[I, O, Cas](implicit
    me: MappedEncoding[I, O],
    cm: CassandraMapper[O, Cas]
  ): CassandraMapper[I, Cas] = CassandraMapper((i, lookup) => cm.f(me.f(i), lookup))

  implicit def cassandraMapperDecodeRec[I, O, Cas](implicit
    m: MappedEncoding[I, O],
    cm: CassandraMapper[Cas, I]
  ): CassandraMapper[Cas, O] = CassandraMapper((i, lookup) => m.f(cm.f(i, lookup)))
}