public MessageAck() 
{

}

 public MessageAck(MessageDispatch md,
    byte ackType,
    int messageCount) 
{
        this.ackType = ackType;
        this.consumerId = md.getConsumerId();
        this.destination = md.getDestination();
        this.lastMessageId = md.getMessage().getMessageId();
        this.messageCount = messageCount;
}

 public  void copy(MessageAck copy) 
{
        super.copy(copy);
        copy.firstMessageId = firstMessageId;
        copy.lastMessageId = lastMessageId;
        copy.destination = destination;
        copy.transactionId = transactionId;
        copy.ackType = ackType;
        copy.consumerId = consumerId;
}

 public byte getAckType() 
{
        return ackType;
}

 public ConsumerId getConsumerId() 
{
        return consumerId;
}

 public byte getDataStructureType() 
{
        return DATA_STRUCTURE_TYPE;
}

 public ActiveMQDestination getDestination() 
{
        return destination;
}

 public MessageId getFirstMessageId() 
{
        return firstMessageId;
}

 public MessageId getLastMessageId() 
{
        return lastMessageId;
}

 public int getMessageCount() 
{
        return messageCount;
}

The number of messages being acknowledged in the range.

 public TransactionId getTransactionId() 
{
        return transactionId;
}

 public boolean isDeliveredAck() 
{
        return ackType == DELIVERED_ACK_TYPE;
}

 public boolean isInTransaction() 
{
        return transactionId != null;
}

 public boolean isIndividualAck() 
{
        return ackType == INDIVIDUAL_ACK_TYPE;
}

 public boolean isMessageAck() 
{
        return true;
}

 public boolean isPoisonAck() 
{
        return ackType == POSION_ACK_TYPE;
}

 public boolean isRedeliveredAck() 
{
        return ackType == REDELIVERED_ACK_TYPE;
}

 public boolean isStandardAck() 
{
        return ackType == STANDARD_ACK_TYPE;
}

 public  void setAckType(byte ackType) 
{
        this.ackType = ackType;
}

 public  void setConsumerId(ConsumerId consumerId) 
{
        this.consumerId = consumerId;
}

 public  void setDestination(ActiveMQDestination destination) 
{
        this.destination = destination;
}

 public  void setFirstMessageId(MessageId firstMessageId) 
{
        this.firstMessageId = firstMessageId;
}

 public  void setLastMessageId(MessageId lastMessageId) 
{
        this.lastMessageId = lastMessageId;
}

 public  void setMessageCount(int messageCount) 
{
        this.messageCount = messageCount;
}

 public  void setMessageID(MessageId messageID) 
{
        setFirstMessageId(messageID);
        setLastMessageId(messageID);
        setMessageCount(1);
}

A helper method to allow a single message ID to be acknowledged

 public  void setTransactionId(TransactionId transactionId) 
{
        this.transactionId = transactionId;
}

 public Response visit(CommandVisitor visitor) throws Exception 
{
        return visitor.processMessageAck(this);
}