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March meeting: Command Query Responsibility Segregation
On March 1st, Erik Rozendaal will give a presentation about Command Query Responsibility Seggregation (CQRS).
Command-Query Responsibility Segregation is a technique developed by Greg Young that combines the Event Sourcing pattern with Domain-Driven Design. This provides various benefits, amongst others: a fully encapsulated domain model without the need for any ORM tools, separate query and reporting database, 100% correct historical information, and easy integration with other systems.
In this presentation we'll cover the core concepts of Command-Query Responsibility Segregation, its impact on the application's architecture, and the various advantages and disadvantages. Some (Java) code will be shown to highlight how such a system can be implemented.