Cursor-Scoped Event Aggregation Pattern – for high performance aggregation queries
Often, stateful applications executing enterprise scenarios are not just interested in the current state of the system, but also in the events which caused the transition that resulted in the particular state. This requirement has exponentially increased the popularity of the Event Sourcing Pattern.
Event Sourcing Patterns ensure that all changes/events that caused a transition in application state are stored as a sequence of events in an append-only store. These events can then be queried for tracking history or even be used to reconstruct system state in case of an unexpected application crash.… [Keep reading] “Cursor-Scoped Event Aggregation Pattern – for high performance aggregation queries”