How Many Java EE Developers Are Actually Using CDI?

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How Many Java EE Developers Are Actually Using CDI?

60% yes, 21% no, 19% didn't know what CDI was. Data from a Twitter survey with ~300 responses.

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The good folks over at Genuitec developing MyEclipse recently asked the Twittersphere about real world CDI usage. They ran a week-long Twitter survey asking the simple question - "Do you use CDI in your Java EE applications?" The results of the survey were pretty interesting and certainly worth sharing. As the graph below shows, 60% responded they use CDI. 21% responded that they did not. 19% did not know what CDI was.

Here is a link to the actual survey on the MyEclipse Twitter account. For those unaware the MyEclipse team is working hard to bridge the CDI and Java EE support gaps in Eclipse - hence the question.

It is definitely very good that a clear majority said they were using CDI. CDI is key to writing effective Java EE applications. This data point goes a long way to removing the severe CDI skepticism in certain corners of the Java EE ecosystem. The 19% that responded that they did not know what CDI was pose both a challenge and an opportunity. If you are a Java EE or CDI fan it should tell you that there are colleagues that you should educate on CDI. I am often still taken aback when a developer does not know what CDI is or still refers to Java EE as "J2EE" (the term J2EE has been long retired with the likes of "J2SE" and COM/DCOM). A large number of these same developers are very pleasantly surprised to learn how much modern Java EE can help make their day-to-day work easier.

No survey is perfect of course. The sample data size for the survey is small but respectable at around 300. Around 500-1000 data points is probably more representative of the Java ecosystem. Since it is a Twitter survey it is probably highly susceptible to selection bias. That being said the results are definitely good enough to think about seriously.

dependency injection, javaee, oracle

Published at DZone with permission of Reza Rahman , DZone MVB. See the original article here.

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