--- /dev/null
+package org.readium.r2_streamer.model.container;
+
+import java.io.InputStream;
+import java.util.List;
+
+/**
+ * Created by Shrikant Badwaik on 24-Jan-17.
+ */
+
+public interface Container {
+ String rawData(String relativePath) throws NullPointerException;
+
+ int rawDataSize(String relativePath);
+
+ List<String> listFiles();
+
+ InputStream rawDataInputStream(String relativePath) throws NullPointerException;
+}