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Types of Entity Managers: Application-managed EntityManager

JPA specification defines few types of EntityManagers / Persistence Contexts. We can have:extended and transactional-scoped EntityManagers, container-managed or application-managed ...
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EJB Inheritance is Different From Java Inheritance

Despite the fact that EJB inheritance sometimes uses Java inheritance — they’re not always the same. Just as you could read in my previous post, EJB doesn’t have to implement ...
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Defining EJB 3.1 Views (Local, Remote, No-Interface)

This post will talk about possible ways of defining EJB views using annotations (I’ll just mention about using EJB Deployment Descriptor at the end.) I’ll focus on the most current ...
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JUnit and EasyMock cooperation

Developers always need to take care about code which they produced. They should be ensured that code works properly after a new feature was implemented or some bug was fixed. That’s ...
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REST with Apache Camel

There are many ways to expose an HTTP endpoint in Camel: jetty, tomcat, servlet, cxfrs and restlet. Two of these components – cxfrs and restlet also support REST semantics just ...
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Indexing data in Solr from disparate sources using Camel

Apache Solr is ‘the popular, blazing fast open source enterprise search platform’ built on top of Lucene. In order to do a search (and find results) there is the initial ...
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Spring MVC: Creation of a simple Controller with Java based config

This is the first article on my blog related to Spring MVC. The beginning is always exciting, so I will try to be concise and informative. Spring MVC allows creation of web-applications ...
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Bidirectional @OneToMany / @ManyToOne association

One of goals in programming is representing of models from real world. Very often an application need to model some relationship between entities. In the last article about Hibernate ...
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Bidirectional @OneToOne primary key association

It’s time to continue articles about Hibernate. The last one was dedicated to unidirectional @OneToOne association. So today I will show you how to obtain bidirectional @OneTonOne ...
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Apache Camel meets Redis

The Lamborghini of Key-Value stores Camel is the best of bread Integration framework and in this post I’m going to show you how to make it even more powerful by leveraging another ...
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