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Java

Java

Revising the Vendor Item relationship of GoProcure system.

Many-to-Many Relationship using Entity Framework or Java JPA.

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0 likes3 views4 min

Design Decision: Final Vendor ↔ Item (Many-to-Many)Relationship in GoProcure (Association + Composition) Introduction As we continue building the GoProcure enterprise procurement system, one of the most crucial design decisions we had to revisit was the relationship between Vendor and Item. At first glance, it might seem simple — “a Vendor supplies many Items.” But in...

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Understanding Association, Aggregation, and Composition in Domain Modelling

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Understanding Association, Aggregation, and Composition in Domain Modelling When modeling your domain, not all relationships between classes are equal. In Object-Oriented Design (OOD) and Domain-Driven Design (DDD), three core relationship types define how objects relate to each other: Association, Aggregation, and Composition. These relationships go beyond mere “connections” — they express ownership, lifecycle, and dependency...

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