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Author Archives: Byron Kiourtzoglou

Byron Kiourtzoglou
Byron is a master software engineer working in the IT and Telecom domains. He is an applications developer in a wide variety of applications/services. He is currently acting as the team leader and technical architect for a proprietary service creation and integration platform for both the IT and Telecom industries in addition to a in-house big data real-time analytics solution. He is always fascinated by SOA, middleware services and mobile development. Byron is co-founder and Executive Editor at Java Code Geeks.

Spring 3 RESTful Web Services

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Spring 3 provides support for RESTful Web services. In this tutorial we will show you how to implement a RESTful Web service in Spring or, if you want, to expose an existing Spring service as a RESTful Web service. To make things more interesting we are going to continue from where we left of at our previous article about Spring ...

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Spring 3 HornetQ 2.1 Integration Tutorial

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Utilize the new ultra high performance messaging system from JBoss through Spring framework. HornetQ is an open source project to build a multi-protocol, embeddable, very high performance, clustered, asynchronous messaging system. It is written in Java and runs on any platform with a Java 5 or later runtime. HornetQ class-beating high performance journal provides persistent messaging performance at rates normally ...

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GWT Spring and Hibernate enter the world of Data Grids

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Maximize Hibernate performance with the power of Infinispan Data Grid. A GWT, Spring, JPA, Hibernate, Infinispan integration tutorial. In this tutorial we are going to discuss about how you can use Infinispan as a Hibernate second level cache provider. Infinispan is the successor of JBoss cache and the company’s flagship towards the open source data grids domain. To make things ...

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GWT 2 Spring 3 JPA 2 Hibernate 3.5 Tutorial

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This step by step guide will present how to develop a simple web application using Google’s Web Toolkit (GWT) for the rich client and Spring as the back – end, server side framework. The sample web application will provide functionality to make CRUD (Create Retrieve Update Delete) operations to a database. For the data access layer we will use JPA ...

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Java API for Kannel SMS/WAP gateway v 1.0.2 released

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Hello all, we released version 1.0.2 of Java API for Kannel SMS/WAP gateway. The latest version introduces prioritized WAP Push functionality and bulk WAP Push messaging. You can download the new version here An example use of the API is shown below :         public static void main(String[] args) { SMSManager smsManager = SMSManager.getInstance(); // We can ...

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JBoss 4.2.x Spring 3 JPA Hibernate Tutorial Part #2

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We continue our tutorial about Spring 3, Hibernate, JPA and JBoss 4.2.x – 4.3 integration. The last step is to create a Spring service to expose functionality to the end user. We have to create an interface class and the relevant implementation class. First the interface class :           package com.mycomp.myproject.services; import com.mycomp.myproject.dto.EmployeeDTO; public interface ExampleService ...

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Java beginners Guide

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First steps in Java programming. For a introduction tutorial in Java please see the official help from SUN here where, except of the core language, several technologies and APIs are introduced. We propose to begin by reading the trails covering the basics and continue with the rest of the tutorials. We propose to : Keep the code straightforward and easy ...

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JBoss 4.2.x Spring 3 JPA Hibernate Tutorial

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After spending many hours searching the web, trying to find the most efficient way to use Spring, JPA and Hibenate for several projects we concluded to the configuration that will be presented below. Integrating Spring with JPA and Hibernate consists of several steps : Configuration of the Spring container Configuration of the JPA ORM layer Configuration of Hibernate Second lvl ...

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Scheduling principals in Java applications

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Many projects require scheduling functionality, such us scheduled jobs, repeated jobs, asynchronous execution etc. Our preferred method is to use an enterprise job scheduler such us Quartz from OpenSymphony. One of the most tricky parts when coding using scheduled tasks is the execution part. The main rule of thumb here is to pay attention to the actual code that will ...

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Messaging principals in Java applications

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Messaging is a crucial aspect of every Java application, especially for applications involving Enterprise Application integration (EAI) or separation of concerns, such us multi-tier WEB applications. Messaging can be separated in two main categories, synchronous and asynchronous. With synchronous messaging the initiator of a conversation waits for a replay to each submitted request, on the other hand, in asynchronous messaging ...

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