Don’t require an owner.

diff --git a/src/main/java/net/pterodactylus/sone/data/Album.java b/src/main/java/net/pterodactylus/sone/data/Album.java
index 76015c8..60fb296 100644 (file)
--- a/src/main/java/net/pterodactylus/sone/data/Album.java
+++ b/src/main/java/net/pterodactylus/sone/data/Album.java
@@ -34,7 +34,7 @@ public class Album implements Fingerprintable {
        private final String id;
 
        /** The Sone this album belongs to. */
-       private final Sone sone;
+       private Sone sone;
 
        /** Nested albums. */
        private final List<Album> albums = new ArrayList<Album>();
@@ -53,12 +53,9 @@ public class Album implements Fingerprintable {
 
        /**
         * Creates a new album with a random ID.
-        *
-        * @param sone
-        *            The Sone this album belongs to
         */
-       public Album(Sone sone) {
-               this(UUID.randomUUID().toString(), sone);
+       public Album() {
+               this(UUID.randomUUID().toString());
        }
 
        /**
@@ -66,13 +63,10 @@ public class Album implements Fingerprintable {
         *
         * @param id
         *            The ID of the album
-        * @param sone
-        *            The Sone this album belongs to
         */
-       public Album(String id, Sone sone) {
-               Validation.begin().isNotNull("Album ID", id).isNotNull("Album Owner", sone).check();
+       public Album(String id) {
+               Validation.begin().isNotNull("Album ID", id).check();
                this.id = id;
-               this.sone = sone;
        }
 
        //
@@ -98,6 +92,20 @@ public class Album implements Fingerprintable {
        }
 
        /**
+        * Sets the owner of the album. The owner can only be set as long as the
+        * current owner is {@code null}.
+        *
+        * @param sone
+        *            The album owner
+        * @return This album
+        */
+       public Album setSone(Sone sone) {
+               Validation.begin().isNull("Current Album Owner", this.sone).isNotNull("New Album Owner", sone).check().isEqual("New Album Owner", sone, this.sone).check();
+               this.sone = sone;
+               return this;
+       }
+
+       /**
         * Returns the nested albums.
         *
         * @return The nested albums
@@ -285,7 +293,7 @@ public class Album implements Fingerprintable {
                        return false;
                }
                Album album = (Album) object;
-               return sone.equals(album.sone) && id.equals(album.id);
+               return id.equals(album.id);
        }
 
 }