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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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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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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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A JUnit Rule to Run a Test in Its Own Thread

Occasionally it would be helpful to be able to run a JUnit test in a separate thread. In particular when writing integration tests that interact with encapsulated ThreadLocals or the ...
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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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Template Method Pattern Example Using Java Generics

If you find that a lot of your routines are exactly the same except for certain sections, you might want to consider the Template Method to eliminate error-prone code duplication. ...
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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 ...
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