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/*
* Copyright (c) 2020 Simer JS Plaha ([email protected] - @simerplaha)
*
* This file is a part of SwayDB.
*
* SwayDB is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* SwayDB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with SwayDB. If not, see .
*
* Additional permission under the GNU Affero GPL version 3 section 7:
* If you modify this Program or any covered work, only by linking or
* combining it with separate works, the licensors of this Program grant
* you additional permission to convey the resulting work.
*/
package swaydb.java
import swaydb.{Apply, Bag}
import scala.reflect.ClassTag
object Interop {
/**
* Experimental function that Converts a Scala [[swaydb.Map]] into [[swaydb.java.Map]].
*
* When working with Java and Scala both in the same application invoke [[swaydb.java.Map.asScala]] to access the
* map is Scala. Converting from Scala to Java is not recommended since Java implementation is
* dependant on Scala implementation and not the other way around (One way - Java -> Scala).
*/
private class InteropImplicit[K, V, F, BAG[_]](map: swaydb.Map[K, V, F, BAG]) {
@inline final def asJava(implicit classTag: ClassTag[F]): Map[K, V, swaydb.java.PureFunction[K, V, Return.Map[V]]] = {
val scalaMap: swaydb.Map[K, V, F, Bag.Less] = map.toBag[Bag.Less]
if (classTag == ClassTag.Nothing)
Map[K, V, Void](scalaMap).asInstanceOf[Map[K, V, swaydb.java.PureFunction[K, V, Return.Map[V]]]]
else
Map[K, V, swaydb.java.PureFunction[K, V, Return.Map[V]]](scalaMap)
}
}
/**
* Converts a java Map function to Scala.
*/
implicit class MapInterop[K, V, R <: Return.Map[V]](function: PureFunction[K, V, R]) {
@inline final def asScala: swaydb.PureFunction[K, V, Apply.Map[V]] =
PureFunction asScala function
}
/**
* Converts java Set function to Scala.
*/
implicit class SetInterop[K, R <: Return.Set[Void]](function: PureFunction.OnKey[K, Void, R]) {
@inline final def asScala: swaydb.PureFunction.OnKey[K, Nothing, Apply.Set[Nothing]] =
PureFunction asScala function
}
}
