Add interface for track derivatives.

diff --git a/src/main/java/net/pterodactylus/demoscenemusic/data/TrackDerivative.java b/src/main/java/net/pterodactylus/demoscenemusic/data/TrackDerivative.java
new file mode 100644 (file)
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+++ b/src/main/java/net/pterodactylus/demoscenemusic/data/TrackDerivative.java
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+/*
+ * 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;
+
+import net.pterodactylus.demoscenemusic.core.Core;
+
+/**
+ * A track derivative contains a version of a {@link Track}. Most notable
+ * different derivatives will be an original file (like a MOD or SID file) and a
+ * rendered audio file.
+ *
+ * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
+ */
+public interface TrackDerivative extends Base {
+
+       /**
+        * Returns the version of the derivative. Currently there are five used
+        * versions: “data.original,” “data.original.executable,” “audio.lossy,”
+        * “audio.lossless,” and “data.unknown” (for unknown derivatives).
+        *
+        * @return The version of the derivative
+        */
+       public String getVersion();
+
+       /**
+        * Sets the version of the derivative.
+        *
+        * @param version
+        *            The version of the derivative
+        * @return This derivative
+        */
+       public TrackDerivative setVersion(String version);
+
+       /**
+        * Returns the path where this derivative is stored. This path is relative
+        * to the {@link Core#getDataDirectory()}.
+        *
+        * @return The path of this derivative
+        */
+       public String getPath();
+
+       /**
+        * Sets the path of this derivative.
+        *
+        * @param path
+        *            The new path of this derivative
+        * @return This derivative
+        */
+       public TrackDerivative setPath(String path);
+
+}