Java demo showcasing both the Observer and Publish/Subscribe design patterns. Includes simple, practical implementations to highlight their differences.
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Mar 28, 2025 - Java
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asynchronous-processing
Here are 10 public repositories matching this topic...
A distributed J2EE Online Auction System utilizing EJB (Enterprise Java Beans) (Singleton, Stateless, MDB) & JMS for high-concurrency, asynchronous bid processing. Features realtime updates via WebSockets, thread-safe concurrency control, & a Bootstrap/jQuery UI powered by Jackson JSON serialization, deployed as a scalable EAR (Enterprise Archive)
javascript java bootstrap jquery distributed-systems json jsp jms websockets concurrency servlets java-ee mdb ejb stateless-beans real-time-bidding asynchronous-processing jackson-library enterprise-archive singleton-beans
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Jan 11, 2026 - Java
A robust, scalable payment gateway system built in Java, designed to demonstrate Low-Level Design (LLD), clean architecture, and real-world backend engineering concepts such as idempotency, asynchronous processing, and webhook reliability.
java webhooks backend design-patterns concurrent-programming thread-pool repository-pattern payment-gateway strategy-pattern lld system-design idempotency object-oriented-design low-level-design asynchronous-processing scalable-systems
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Jan 16, 2026 - Java
Simulação de fluxo de pedidos assíncrono com Spring Boot e ActiveMQ. Demonstra mensageria (JMS), desacoplamento e processamento entre microserviços independentes.
spring-boot microservice backend docker-compose jms message-queue activemq event-driven asynchronous-processing java17
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Oct 13, 2025 - Java
Agibank challenge | Scalable financial contract validation service with high-volume asynchronous processing
spring-boot postgresql apache-kafka hexagonal-architecture junit5 mokito asynchronous-processing java-21
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Jan 26, 2026 - Java
HTTP API with asynchronous data processing using RabbitMQ and Spring Boot
spring spring-boot rabbitmq asynchronous data-engineering spring-framework rabbitmq-client asynchronous-processing
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Aug 9, 2020 - Java
A service for interacting with the Kindle catalog of books. Users can retrieve books and recommendations, remove old books, and submit new versions of books for publishing to the catalog. In order to accomplish this, I implemented asynchronous processing and thread safety.
dagger concurrency plantuml thread-safety threads runnable queues concurrentlinkedqueue dynamodb-query asynchronous-processing argument-captors dynamodb-deletes
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Nov 3, 2022 - Java
This Spring Boot application demonstrates several key architectural patterns for handling large document processing without blocking operations or memory issues:
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May 24, 2025 - Java
Built a distributed task processing system using Spring Boot and RabbitMQ, implementing asynchronous processing with retry mechanism, Dead Letter Queue (DLQ), delayed retries, and idempotent worker design for fault tolerance and scalability.
mysql java distributed-systems spring-boot microservice rabbitmq event-driven-architecture dead-letter-queue retry-mechanism asynchronous-processing task-processing
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Mar 20, 2026 - Java
🚀 Build and manage a high-availability online auction system with real-time bidding using Java EE, EJB, JMS, and a responsive user interface.
javascript java bootstrap jquery distributed-systems json jsp jms concurrency servlets java-ee mdb ejb stateless-beans real-time-bidding github-config asynchronous-processing jackson-library enterprise-archive singleton-beans
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Mar 23, 2026 - Java
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