Englist

Let's quickly go over what we covered in the previous tutorials.

The core idea in the messaging model in RabbitMQ is that the producer never sends any messages directly to a queue. Actually, quite often the producer doesn't even know if a message will be delivered to any queue at all.

But what if we need to run a function on a remote computer and wait for the result? 

As mentioned above, you read data from a channel into a buffer, and write data from a buffer into a channel.

A Buffer has three properties you need to be familiar with.

The MappedByteBuffer is a bit special, and will be covered in its own text.

Aside from its content, the essential properties of a buffer are its capacity, limit, and position