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A beginner’s guide to JPA/Hibernate entity state transitions

Introduction Hibernate shifts the developer mindset from SQL statements to entity state transitions. Once an entity is actively managed by Hibernate, all changes are going to be automatically ...
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Keyword extraction and similarity calculation among textual content

Background Web applications are becoming smarter. Gone are the days when to avail a service from a website, user had to fill up a giant form. Let’s say, you have a website which is ...
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Clean JUnit Throwable-Tests with Java 8 Lambdas

Recently I was involved in a short online discussion on twitter and google+ which concerned the question why the arrival of Java 8 Lambda expressions makes the catch-exception library1 ...
java-interview-questions-answers

A closer look at Oracle IDM Auditing

Reporting is a vital functionality in any product which deals with sensitive information. Same applies to Identity & Access Management tools. Oracle IDM’s Auditing module acts ...
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Java EE 7 with Angular JS – Part 1

Today’s post will show you how to build a very simple application using Java EE 7 and Angular JS. Before going there let me tell you a brief story: I have to confess that I was never ...
spring-interview-questions-answers

How to compose html emails in Java with Spring and Velocity

In this post I will present how you can format and send automatic emails with Spring and Velocity. Spring offers alone the capability to create simple text emails, which is fine for ...
java-logo

JSR 303 loading messages from an I18N property file

Overview This article will illustrate how to adapt the JSR 303 validation API to load messages from an I18n property file, and this by conserving all benefits of internationalisation ...
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Mule ESB, ActiveMQ and the DLQ

In this post I will show a simple Mule ESB flow to see the DLQ feature of Active MQ in action. I assume you have a running Apache ActiveMQ instance available (if not you can download ...
eclipse-logo

Developing Eclipse plugins

Recently I started working with a team on an Eclipse plugin. The team had developed an awesome plugin that does the intended purpose. Thus I checked out the source and tried building ...
java-interview-questions-answers

Smart Auto-PPR Change Event Policy

There is a common belief among ADF developers that setting the iterator binding change event policy to ppr  is not a good thing in terms of performance because this policy forces ...
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