Event Sourcing vs CRUD: Rethinking Data Persistence in Enterprise Systems

For decades, CRUD has been the default approach to data persistence. Create a record, read it back, update when things…

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CQRS and Event Sourcing in Practice: Building Scalable Systems

Today’s distributed systems experiences challenges-evolving business conditions, consistency and scalability. Recently, two architectural design patterns — command query responsibility segregation…

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Implementing CQRS and Event Sourcing with Axon Framework in Spring

Modern enterprise applications often require complex consistency, scalability, and traceability features. This is where CQRS (Command Query Responsibility Segregation) and…

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CQRS increases consistency

I hear this argument a lot. As the author of a framework that strongly encourages CQRS, I obviously am biased…

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Event-Sourcing and CQRS in Practise

Anyone that has tried to implement a fully ACID compliant system knows that there are a lot of considerations you…

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CQRS with Java and Lagom

I’ve had the pleasure to talk at the Chicago Java User Group and talk about how Lagom implements CQRS, the…

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Divided We Win: an event sourcing / CQRS prospective on write and read models separation

Quite a while ago we have started to explore command query responsibility segregation (CQRS) architecture as an alternative way to…

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Rapid Development with Hibernate in CQRS Read Models

In this post I’m going to share a few tricks for using Hibernate tooling in CQRS read models for rapid…

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Persistence in CQRS Read Models

One of the biggest benefits of CQRS is the ability to implement multiple read models. Business rules and the domain…

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