F.Marchioni

Tutorial: Using Debezium JDBC Connector

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Debezium is an open-source CDC (Change Data Capture) platform that allows you to capture and stream database changes in real-time. The Debezium JDBC Connector enables you to monitor changes in relational databases, like PostgreSQL, and stream those changes to various downstream systems.

In this tutorial, we will guide you through the process of using the Debezium JDBC Connector to capture changes in a PostgreSQL database and stream them to Apache Kafka. We’ll use Docker to set up a PostgreSQL database, Apache Kafka, and Debezium, creating an end-to-end example.

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Getting started with Debezium

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Debezium is a project built upon Apache Kafka and uses Kafka to stream the changes from one system to another. Once core feature of Debezium is the Change Data Capture which is able to capture data and pushes it into Kafka. In this updated tutorial we will learn how to configure Debezium and Apache Kafka to stream changes in the database.

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Quarkus vs. Micronaut: A Comparative Analysis

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In the world of modern Java microservices, developers are faced with a variety of frameworks and tools to choose from. Two popular options in this space are Quarkus and Micronaut. Both of these frameworks offer unique features and advantages, making the choice between them a significant decision for developers. In this article, we’ll delve into … Read more

Configuring WildFly Batch Job Repository

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WildFly ships with the subsystem batch-jberet which is the administration side of JSR 352, also known as Batch API for Java applications. This JSR specifies a programming model for batch applications and a runtime for scheduling and executing jobs. WildFly Batch Job Repository configuration Out of the box, the following configuration defines the batch-jberet subsystem: … Read more

How to create Jobs in Kubernetes

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This article discusses how to automate Tasks in Kubernetes and OpenShift using Jobs and Cron Jobs. We will show some example on how to create and manage them. Then, we will discuss the best practices about using Jobs in Kubernetes.

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How to analyze large Java Heap Dumps

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One critical tool in diagnosing memory-related issues is the Heap dump, a snapshot of an application’s memory at a particular point in time. However, as applications become larger and more intricate, heap dumps can also become massive and challenging to analyze. In this article, we will learn how to examine Heap Dump data even with lightly equipped hardware.

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PrimeFaces on Quarkus made simple

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PrimeFaces is a renowned open-source UI component library for JSF-based web applications. It provides an extensive set of rich, customizable UI components that simplify the process of building feature-rich and visually appealing user interfaces. In this article we will learn how to integrate its library in Quarkus applications.

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How to init an Array in Java made simple

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In this comprehensive guide, we uncover the diverse techniques to init an array in Java, discussing basic and advanced approaches. Whether you’re diving into static or dynamic array creation, Arrays.copy or exploring data Streaming , this article equips you with the essential know-how to streamline your Java programming experience Static Array Initialization Static array initialization … Read more

PrimeFaces Datatable in a nutshell

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The dataTable in JSF architecture displays Collection or Array Objects, with each Object representing a row and columns aligning with Object instance variables. In this tutorial, which uses Primefaces version () we will show how to use the Primefaces Datatable component in minutes. If you are new to Primefaces we recommend checking our HelloWorld introduction … Read more