Aggregate root is a meaningful object in the domain.
It can be viewed as a write boundary for entities and value objects
that will maintain write consistency.
Usually it represents a single table, but can span several tables
and can be used like document or similar data structure.
Since every aggregate is also an entity, it has a unique
identification represented by its URI.
DSL example:
module Todo {
aggregate Task {
timestamp startedAt;
timestamp? finishedAt;
int? priority;
Seq<Note> notes;
}
value Note {
date entered;
string remark;
}
}
Aggregate root is a meaningful object in the domain. It can be viewed as a write boundary for entities and value objects that will maintain write consistency.
Usually it represents a single table, but can span several tables and can be used like document or similar data structure. Since every aggregate is also an entity, it has a unique identification represented by its URI.
DSL example: