Bozhidar Bozhanov

About Bozhidar Bozhanov

Senior Java developer, one of the top stackoverflow users, fluent with Java and Java technology stacks - Spring, JPA, JavaEE. Founder and creator of Computoser and Welshare. Worked on Ericsson projects, Bulgarian e-government projects and large-scale online recruitment platforms. Member of the jury of the International Olympiad in Linguistics and the Program committee of the North American Computational Linguistics Olympiad.

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State Does Not Belong In The Code

What is “state” in your web application? It’s the data that gets stored (regardless of the destination – memory, database, file-system). The application itself must not store ...
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Send A Relevant Dilbert Strip To Your Boss

The Dilbert comics is just 2 years younger than me, which means there are thousands of strips. Most of them represent a mocked real-world situation, especially about big corporations ...
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Why I Like The Verbosity of Java

Java is too verbose, they say. You can find comparisons of Hello World programs that take 2 lines in ruby and 10 lines in Java, and in order to read a file you need 20 lines in Java ...
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Fix That Code Immediately!

You are working on that fresh project and you see a bad piece of code somewhere. The wrong way to approach it is “nah, that’s someone else’s code, I’m not doing anything about ...
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The Default Use Case

You should have a default use case (or a small set of them). No matter what are you making – end-user product, public API, protocol spec, etc. The default use case is the most common ...
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Change Without Redeploying With Eclipse And Tomcat

They say developing Java is slow because of the bloated application servers – you have to redeploy the application to see your changes. While PHP, Python, etc. scripting languages, ...
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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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Getters and Setters Are Not Evil

Every now and then some OOP purist comes and tells us that getters and setters are evil, because they break encapsulation. And you should never, ever use getters and setters because ...
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The Java Logging Mess

Every application needs logging. And right now there are a lot of options on what exactly to use for logging in Java. The most famous frameworks are: log4j, logback, commons-logging, ...
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On DTOs

DTOs, or data-transfer objects, are commonly used. What is not s? commonly-known is that they originate from DDD (Domain-driven design). There it makes a lot of sense – domain objects ...
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