--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/app/src/main/java/org/tn5250j/encoding/ICodePage.java	Thu Dec 03 11:23:55 2015 -0800
@@ -0,0 +1,22 @@
+package org.tn5250j.encoding;
+
+public interface ICodePage {
+
+    /**
+     * Convert a single byte (or maybe more bytes which representing one character) to a Unicode character.
+     *
+     * @param index
+     * @return
+     */
+    public abstract char ebcdic2uni(int index);
+
+    /**
+     * Convert a Unicode character in it's byte representation.
+     * Therefore, only 8bit codepages are supported.
+     *
+     * @param index
+     * @return
+     */
+    public abstract byte uni2ebcdic(char index);
+
+}