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Enterprise Java

Serverless: a no-brainer!

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Few years ago, containers swept through the dev and devops lands like a category-6 hurricane. Docker. Rkt. others. Docker Swarm. K8s. OpenShift. Right now we are literally at the epicenter, but when we glimpse at the horizon we see another one coming! Serverless. The funny thing is, “serverless” itself is a misnomer. Of course there are servers. There are always ...

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Spring Security Concurrent Session Control Example Tutorial – How to limit number of User Session in Java JEE Web Application

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If you don’t know, Spring security can limit the number of sessions a user can have. If you are developing a web application especially a secure web application in Java JEE then you must have come up with the requirement similar to online banking portals have e.g. only one session per user at a time or no concurrent session per user. Even ...

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Get to Know JSON Binding: Overview Series

The Java API for JSON Binding (JSON-B) 1.0 strengthens the Java EE platform’s overall support for the JSON data interchange format. Already, the Java API for JSON Processing (JSON-P) 1.1 has proved popular and together they form the perfect partners that fill a long-standing shortcoming in Java EE’s JSON capacity. Next article in this series covers the customization of JSON ...

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Get to Know JSON Merge Patch: JSON-P 1.1 Overview Series

Java EE 8 includes an update to the JSON Processing API and brings it up to date with the latest IEFT standards for JSON. They are: JSON Pointer RFC 6901 JSON Patch RFC 6902 JSON Merge Patch RFC 7396 I will cover these topics in this mini-series. Getting Started To get started with JSON-P you will need the following dependencies ...

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Jdbi for SaaS & NoSQL

A natural interface for Java-based data integration with CRM, ERP, Accounting, Marketing Automation, NoSQL, flat files and more Jdbi is a SQL convenience library for Java that provides JDBC with a more natural Java database interface that’s easy to bind to domain data types. The library includes building blocks that allow developers to more easily map relationships and objects within ...

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Spring MVC Tutorial

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1. Introduction As an Enterprise Java Developer, one of the main focus in the job is developing web applications. With a web application, many challenges also come into the picture as consequences. To be specific, some of these are state management, workflow and validations. The HTTP protocol’s stateless nature only make things more complex. The Spring’s web framework is designed ...

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Spring Boot & JPA & Hibernate & Oracle

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In this tutorial we show how to create a Spring Boot application that communicates with an Oracle data source through Hibernate. Prerequisites: Eclipse IDE (neon release) Maven 4 Java 1.8 1- Create maven project Open eclipse, then create a new maven project and name it as SpringBootHibernate. At the end of this tutorial, we’ll get the following project structure: 2- ...

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