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The center of the hexagon contains your pure business logic. This code should be agnostic of any framework, database technology, or delivery mechanism. It consists of:
package com.example.banking.ports.outbound; import com.example.banking.domain.model.Account; import java.util.Optional; public interface LoadAccountPort Optional loadAccount(Long accountId); Use code with caution. I can help you find if you share the exact ISBN or author
[ User Interface ] ---> ( Driving Port ) │ ▼ ┌─────────────────────────┐ │ Core Domain │ │ Business Logic │ └─────────────────────────┘ │ ▼ [ Database / API ] <--- ( Driven Port )
Modeling business rules with entities, value objects, and aggregates. Application Hexagon: Implementing software behavior using ports and use cases. Framework Hexagon: Using adapters to support various protocols like Isolation: Java modules It consists of: package com
Organize your codebase to explicitly enforce architectural boundaries:
Adapters are the concrete implementations that handle specific technology stacks. an API request).
: Implement inbound ports (e.g., a REST controller).
in 2021. This guide focuses on building maintainable and change-tolerant applications using Java and Quarkus. Key Resources and Papers (2021)
: Used by external systems to trigger actions within the application (e.g., an API request).