Add default implementation of track derivative.

diff --git a/src/main/java/net/pterodactylus/demoscenemusic/data/DefaultTrackDerivative.java b/src/main/java/net/pterodactylus/demoscenemusic/data/DefaultTrackDerivative.java
new file mode 100644 (file)
index 0000000..dde5a3e
--- /dev/null
+++ b/src/main/java/net/pterodactylus/demoscenemusic/data/DefaultTrackDerivative.java
@@ -0,0 +1,37 @@
+/*
+ * DemosceneMusic - TrackDerivative.java - Copyright © 2012 David Roden
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package net.pterodactylus.demoscenemusic.data;
+
+/**
+ * Default implementation of a {@link TrackDerivative}.
+ *
+ * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
+ */
+public class DefaultTrackDerivative extends DefaultBase implements TrackDerivative {
+
+       /**
+        * Creates a new track derivative.
+        *
+        * @param id
+        *            The ID of the track derivative
+        */
+       protected DefaultTrackDerivative(String id) {
+               super(id);
+       }
+
+}