Enterprise Architecture
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Java tip: Composite keys in JPA and Hibernate
Use embeddable objects to join two primary keys into one composite key
Java tip: Inheritance relationships in JPA and Hibernate
Learn four ways to manage inheritance relationships and support polymorphic querying in Java ORM
![JavaWorld > Persistence [series] > data blocks / structure / database / data center](https://images.idgesg.net/images/article/2019/04/jw_java_persistence_series_3x2_2400x1600_5_data_blocks_structure_processing_database_by_ramcreativ_gettyimages-100792565-small.3x2.jpg)
Java persistence with JPA and Hibernate, Part 2: Many-to-many relationships
Many-to-many relationships and cascade type strategies in JPA and Hibernate
![JavaWorld > Persistence [series] > data / data center / database / server](https://images.idgesg.net/images/article/2019/04/jw_java_persistence_series_3x2_2400x1600_4_data_center_database_server_by_shendart_gettyimages-100792561-small.3x2.jpg)
Java persistence with JPA and Hibernate, Part 1: Entities and relationships
Get started modeling entities and relationships for Java data persistence, using an example application based on Java 8 with Hibernate 5.3.6
Pub/sub messaging: Apache Kafka vs. Apache Pulsar
Apache Kafka set the bar for large-scale distributed messaging, but Apache Pulsar has some neat tricks of its own
Java, meet Kubernetes and serverless computing
Red Hat’s beta Quarkus framework aims to optimize Java development for distributed application architectures
TigerGraph review: A graph database designed for deep analytics
Highly parallelized and horizontally scalable, TigerGraph shines for use cases that require multi-hop analytic queries
Kubernetes is so hard—but worth the pain
2019 will be a challenging year for some enterprises as they try to turn Kubernetes hype into production reality
20 Go language projects for mastering microservices
From toolkits for messaging and routing to API design and app frameworks, the Go language has everything you need to go micro
Built for realtime: Big data messaging with Apache Kafka, Part 2
Learn how to use Apache Kafka's partitions, message offsets, and consumer groups to distribute load and scale your applications horizontally, handling up to millions of messages per day
Built for realtime: Big data messaging with Apache Kafka, Part 1
Apache Kafka scales horizontally and offers much higher throughput than some traditional messaging systems. Get started with installation, then build your first Kafka messaging system
How to transition to a microservices architecture
When you hit scalability issues or find it has become costly and hard to release regular updates to your monolithic applications, it’s time to move to the microservices approach. Here’s how
When it comes to databases, why ‘I can’t quit you, baby’
Leaving legacy RDMSs is hard, but eventually enterprises will break free of Oracle’s and others’ last grip on their data infrastructure
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GKE tutorial: Get started with Google Kubernetes Engine
Discover how easy it is to create a Kubernetes cluster, add a service, configure autoscaling, and tap other great features of GKE
YugaByte review: Planet-scale Cassandra and Redis
YugaByte DB combines distributed ACID transactions, multi-region deployment, and support for Cassandra and Redis APIs, with PostgreSQL on the way
Database shift: Start with open source but finish with AWS
AWS seems to be building natural bridges between on-premises databases like MySQL and cloud services like Amazon Aurora
Why use SaltStack for automation and orchestration
SaltStack is a good choice for very large networks, thanks to its message queue networking and multi-master architecture
Database decisions: AWS has changed the game for IT
Enterprises are figuring out that they likely need different database engines to power different parts of their applications. AWS has figured that out, too
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