Implementing Domain-Driven Design

MongoDB Implementation

As with the other Repository implementations, there are some basic implementation considerations. The MongoDB implementation is actually similar to the Coherence version. Here is the high-level overview of what we need:

1. A means to serialize Aggregate instances to the MongoDB format, and then deserialize from that format and reconstitute the Aggregate instance. MongoDB uses a special form of JSON called BSON, which is a binary JSON format.

2. A unique identity generated by MongoDB and assigned to the Aggregate.

3. A reference to the MongoDB node/cluster.

4. A unique collection in which to store each Aggregate type. All instances of each Aggregate type must be stored as a set of serialized documents (key-value pairs) in ...