1 files changed, 15 insertions, 4 deletions
diff --git a/src/main/scala/com/drivergrp/core/core.scala b/src/main/scala/com/drivergrp/core/core.scala
index 8f38bc1..cfa96e7 100644
--- a/src/main/scala/com/drivergrp/core/core.scala
+++ b/src/main/scala/com/drivergrp/core/core.scala
@@ -1,5 +1,7 @@
 package com.drivergrp
 
+import java.util.UUID
+
 import scalaz.Equal
 
 package object core {
@@ -26,15 +28,24 @@ package object core {
   type Id[+Tag] = Long @@ Tag
   object Id {
     def apply[Tag](value: Long) = value.asInstanceOf[Id[Tag]]
+
+    implicit def idEqual[T]: Equal[Id[T]]       = Equal.equal[Id[T]](_ == _)
+    implicit def idOrdering[T]: Ordering[Id[T]] = Ordering.by(identity)
   }
-  implicit def idEqual[T]: Equal[Id[T]]       = Equal.equal[Id[T]](_ == _)
-  implicit def idOrdering[T]: Ordering[Id[T]] = Ordering.by(identity)
 
   type Name[+Tag] = String @@ Tag
   object Name {
     def apply[Tag](value: String) = value.asInstanceOf[Name[Tag]]
+
+    implicit def nameEqual[T]: Equal[Name[T]]       = Equal.equal[Name[T]](_ == _)
+    implicit def nameOrdering[T]: Ordering[Name[T]] = Ordering.by(identity)
   }
 
-  implicit def nameEqual[T]: Equal[Name[T]]       = Equal.equal[Name[T]](_ == _)
-  implicit def nameOrdering[T]: Ordering[Name[T]] = Ordering.by(identity)
+  object revision {
+    final case class Revision[T](id: UUID)
+
+    object Revision {
+      implicit def revisionEqual[T]: Equal[Revision[T]] = Equal.equal[Revision[T]](_.id == _.id)
+    }
+  }
 }