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Java

Virtual Threads: New Foundations for High-Scale Java Applications

Virtual threads are a lightweight implementation of Java threads, delivered as a preview feature in Java 19. They dramatically reduce the effort of writing, maintaining, and observing high-throughput concurrent applications. Virtual threads breathe new life into the familiar thread-per-request style of programming, allowing it to scale with near-optimal hardware utilization.

Brian Goetz
on Sep 23, 2022
Architecture & Design

Location, Location, Location: MVA Considerations for Distributed Processing and Data

Even when designing a Minimum Viable Architecture (MVA), developers must consider resource location, especially when mobile apps are part of a distributed system. Distributing the data and processing can introduce new challenges if location is not part of the decision-making criteria.

Kurt Bittner Pierre Pureur
on Sep 19, 2022
Cloud

Choosing the Right Cloud Infrastructure for Your SaaS Start-up

As a solutions architect, I have been designing SaaS applications for years and I have seen start-ups struggle to find the right cloud infrastructure and improve their product offering. These experiences prompted me to write this article as a tool to help companies make a pragmatic fact and data-driven decision.

Ratnesh Singh Parihar
on Sep 06, 2022
Architecture & Design

Article Series: Continuous Architecture

In this series of articles, the authors reframe software architecture in terms of decisions that teams make about how their system will handle its quality attribute requirements (QARs). In their view, software architecture, reframed in terms of decisions, completes the picture of how the system works by making clear the choices that the team has made, and why.

Pierre Pureur Kurt Bittner
on Sep 05, 2022
Cloud

Building Workflows with AWS Step Functions

AWS Step Functions use a state machine to represent the workflow. A workflow consists of a set of tasks, each of which represents a discrete activity to be performed. Each task is defined by a state of the state machine. In this article, we will learn about the main concepts of AWS Step Functions and apply those to build a workflow for a sample business process: Order Fulfillment.

Pratik Das
on Sep 01, 2022
Java

Java Champion James Ward on the State of Java and JVM Languages

James Ward is a Java Champion and Google’s Kotlin product manager. In a podcast, Ward agreed that “people are still trapped in the Java world” and called default mutability in Java the “trillion-dollar mistake”. In this interview, he speaks about the state of Java, JVM languages, mutability, and functional programming.

James Ward Karsten Silz
on Aug 29, 2022
Architecture & Design

Business Systems Integration is about to Get a Whole Lot Easier

A new breed of integration software is arising that syncs business data into a simplified data hub and then syncs that data to the destination system. The benefit of this integration pattern is that it reduces the number of manual transformations required (often to zero) and makes it easier to write manual transformations when you have to.

Doug Hudgeon
on Aug 24, 2022
Architecture & Design

Chipping Away at the Monolith: Applying MVPs and MVAs to Legacy Applications

Legacy applications actually benefit the most from concepts like a Minimum Viable Product (MVP) and its related Minimum Viable Architecture (MVA). Once you realize that every release is an experiment in value in which the release either improves the value that customers experience or doesn’t, you realize that every release, even one of a legacy application, can be thought of in terms of an MVP.

Kurt Bittner Pierre Pureur
on Aug 19, 2022
Cloud

Cloud Native Network Functions Are Here

Compute elasticity, for instance, is reasonably allocated with virtual machines, containers, and orchestrators and managed with CI/CD pipelines. Network elasticity seems to be lacking in implementation. In this article, we show that cloud native network functions are an attempt to bring network applications into the cloud native world.

W. Watson
on Aug 18, 2022
Architecture & Design

Creating a Secure Distributed Database Cluster Leveraging Your Existing Database Management System

The emergence of Big Data and data lakes doesn't necessarily mean the disappearance of the trusted relational database. The two can coexist, relational databases just need to adjust. For the transition we propose Database Plus, a new technology & concept applicable to any database, that answers these challenges and eliminates switching costs and vendor lock-in.

Trista Pan
on Aug 17, 2022
Java

Debezium and Quarkus: Change Data Capture Patterns to Avoid Dual-Writes Problems

It’s common in microservices to write data in two places, a database and then send the content to another microservice. One approach to tackle this problem is dual writes, but you may lose data because of concurrent writes. Debezium is an open-source project for change data capture using the log scanner approach to avoid dual writes and communicate persisted data correctly between services.

Alex Soto
on Aug 15, 2022
Architecture & Design

Data Manipulation with Functional Programming and Queries in Ballerina

Ballerina has been designed as a data-oriented programming language and supports a functional programming coding style. The Ballerina query language is similar to SQL in the sense that a query expression is made up of clauses. The Ballerina “Table” data structure can be more effective than maps in representing indexed data collections.

Yehonathan Sharvit
on Aug 11, 2022

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