Added Channel.basicNack

Author: Rob Harrop

src/com/rabbitmq/client/Channel.java

@@ -534,6 +534,20 @@ Queue.DeclareOk queueDeclare(String queue, boolean durable, boolean exclusive, b
      */
     void basicAck(long deliveryTag, boolean multiple) throws IOException;
 
+    /**
+     * Reject one or several received messages.
+     *
+     * Supply the <code>deliveryTag</code> from the {@link com.rabbitmq.client.AMQP.Basic.GetOk}
+     * or {@link com.rabbitmq.client.AMQP.Basic.GetOk} method containing the message to be rejected.
+     * @see com.rabbitmq.client.AMQP.Basic.Nack
+     * @param deliveryTag the tag from the received {@link com.rabbitmq.client.AMQP.Basic.GetOk} or {@link com.rabbitmq.client.AMQP.Basic.Deliver}
+     * @param multiple true to reject all messages up to and including
+     * the supplied delivery tag; false to reject just the supplied
+     * delivery tag.
+     * @throws java.io.IOException if an error is encountered
+     */
+    void basicNack(long deliveryTag, boolean multiple) throws IOException;
+
     /**
      * Reject a message. Supply the deliveryTag from the {@link com.rabbitmq.client.AMQP.Basic.GetOk}
      * or {@link com.rabbitmq.client.AMQP.Basic.Deliver} method

src/com/rabbitmq/client/impl/ChannelN.java

@@ -719,6 +719,13 @@ public void basicAck(long deliveryTag, boolean multiple)
         transmit(new Basic.Ack(deliveryTag, multiple));
     }
 
+    /** Public API - {@inheritDoc} */
+    public void basicNack(long deliveryTag, boolean multiple)
+        throws IOException
+    {
+        transmit(new Basic.Nack(deliveryTag, multiple));
+    }
+
     /** Public API - {@inheritDoc} */
     public void basicReject(long deliveryTag, boolean requeue)
         throws IOException