Added get/setState() to ReplayingDecoder

src/main/java/org/jboss/netty/handler/codec/replay/ReplayingDecoder.java

@@ -247,6 +247,24 @@ public abstract class ReplayingDecoder<T extends Enum<T>> extends SimpleChannelH
         checkpoint = cumulation.readerIndex();
     }
 
+    /**
+     * Returns the current state of this decoder.
+     * @return the current state of this decoder
+     */
+    protected T getState() {
+        return state;
+    }
+
+    /**
+     * Sets the current state of this decoder.
+     * @return the old state of this decoder
+     */
+    protected T setState(T newState) {
+        T oldState = state;
+        state = newState;
+        return oldState;
+    }
+
     /**
      * Decodes the received packets so far into a frame.
      *