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What are procedures and functions after all?

Many RDBMS support the concept of “routines”, usually calling them procedures and/or functions. These concepts have been around in programming languages for a while, also outside ...
java-interview-questions-answers

The new Java Caching Standard (javax.cache)

This post explores the new Java caching standard: javax.cache. How it Fits into the Java Ecosystem This standard is being developed by JSR107, of which the author is co-spec lead. JSR107 ...
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Testing GWT Apps with Selenium or WebDriver

Good functional testing is one of the most difficult tasks for web application developers and their teams. It is a challenge to develop tests that are cheap to maintain and yet provide ...
spring-interview-questions-answers

Spring 3 Testing with JUnit 4 – ContextConfiguration and AbstractTransactionalJUnit4SpringContextTests

Looking in the internet for a way to test my Spring 3 application, I found many articles that describe how to test your application by using JUnit. Most of them are incomplete examples ...
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Code coverage with unit & integration tests

On a pet project recently I set out to build automated UI (integration) tests as well as the normal unit tests. I wanted to get all of this integrated into my maven build, with code ...
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Avoid Lazy JPA Collections

Hibernate (and actually JPA) has collection mappings: @OneToMany, @ManyToMany, @ElementCollection. All of these are by default lazy. This means the collections are specific implementations ...
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Play! Framework: Why Did I Fall in Love with it

Some time ago, I was the tech lead for a few very large deployments on the Real Estate market for companies like Fannie Mae, Freddie Mac, Foreclosure.com and HUD. We were running that ...
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Java EE6 CDI, Named Components and Qualifiers

One of the biggest promises java EE6 made, was to ease the use of dependency injection. They did, using CDI. CDI, which stands for Contexts and Dependency Injection for Java EE, offers ...
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Parametrizing custom validator in JSF 2

Writing a custom validator in JSF 2 is not a complicated task. You implement Validator interface, add @FacesValidator annotation and insert validator declaration in faces-config.xml, ...
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Vaadin add-ons and Maven

Introduction One (of the many) thing I like about Vaadin, is its community of ‘add-ons’ to the Vaadin framework – what they call the Vaadin Directory. An ‘add-on’ is a community-contributed ...
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