Transcription of Effective Aggregate Design Part I: Modeling a …
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Effective Aggregate Design Part I: Modeling a …
Effective Aggregate Design part I: Modeling a Single Aggregate Vaughn Vernon: Clustering entities and value objects into an Aggregate The concepts of this domain, along with its performance with a carefully crafted consistency boundary may at first and scalability requirements, are more complex than any of seem like quick work, but among all [DDD] tactical guid- them have previously faced. To address these issues, one of ance, this pattern is one of the least well understood. the DDD tactical tools that they will employ is Aggregate . To start off, it might help to consider some common ques- How should the team choose the best object clusters? The tions. Is an Aggregate just a way to cluster a graph of Aggregate pattern discusses composition and alludes to in- closely related objects under a common parent? If so, is formation hiding, which they understand how to achieve. It there some practical limit to the number of objects that also discusses consistency boundaries and transactions, but should be allowed to reside in the graph?
Effective Aggregate Design Part I: Modeling a Single Aggregate Vaughn Vernon: vvernon@shiftmethod.com Clustering entities and value objects into an aggregate
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