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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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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 ...
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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 ...
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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Hibernate hidden gem: the pooled-lo optimizer

Introduction In this post we’ll uncover a sequence identifier generator combining identifier assignment efficiency and interoperability with other external systems (concurrently accessing ...
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Drools Executable Model

The Executable Model is a re-design of the Drools lowest level model handled by the engine. In the current series (up to 6.x) the executable model has grown organically over the last ...
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Camel on JBoss EAP with Custom Modules

Apache Camel — the best open source integration library Apache Camel is an awesome, open-source, integration library that can be used as the backbone of an ESB, or in stand alone ...
java-interview-questions-answers

Use Cases for Elasticsearch: Flexible Query Cache

In the previous two posts on use cases for Elasticsearch we have seen that Elasticsearch can be used to store even large amounts of documents and that we can access those using the ...
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