diff -r fbd3585af53e -r 0ff0059f2ec3 src/net/java/otr4j/session/Session.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/net/java/otr4j/session/Session.java	Sun Dec 05 18:43:51 2010 +0100
@@ -0,0 +1,42 @@
+package net.java.otr4j.session;
+
+import java.security.KeyPair;
+import java.security.PublicKey;
+import java.util.List;
+
+import net.java.otr4j.OtrEngineListener;
+import net.java.otr4j.OtrException;
+import net.java.otr4j.OtrPolicy;
+import net.java.otr4j.io.messages.AbstractMessage;
+import net.java.otr4j.session.SessionImpl.TLV;
+
+public interface Session {
+
+	public abstract SessionStatus getSessionStatus();
+
+	public abstract SessionID getSessionID();
+
+	public abstract void injectMessage(AbstractMessage m) throws OtrException;
+
+	public abstract KeyPair getLocalKeyPair();
+
+	public abstract OtrPolicy getSessionPolicy();
+
+	public abstract String transformReceiving(String content)
+			throws OtrException;
+
+	public abstract String transformSending(String content, List<TLV> tlvs)
+			throws OtrException;
+
+	public abstract void startSession() throws OtrException;
+
+	public abstract void endSession() throws OtrException;
+
+	public abstract void refreshSession() throws OtrException;
+
+	public abstract PublicKey getRemotePublicKey();
+
+	public abstract void addOtrEngineListener(OtrEngineListener l);
+
+	public abstract void removeOtrEngineListener(OtrEngineListener l);
+}
\ No newline at end of file