Plain old Java object: Difference between revisions

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{{Short description|Type of object in Java programming language}}

In [[software engineering]], a '''plain old Java object''' ('''POJO''') is an ordinary [[Java (programming language)|Java]] [[object (computer science)|object]], not bound by any special restriction. The term was coined by [[Martin Fowler (software engineer)|Martin Fowler]], Rebecca Parsons and Josh MacKenzie in September 2000:<ref name="bliki" /><ref name="bliki">{{cite web |url=http://www.martinfowler.com/bliki/POJO.html |title=MF Bliki: POJO |work=MartinFowler.com }}</ref>

<blockquote>

"{{blockquote|We wondered why people were so against using regular objects in their systems and concluded that it was because simple objects lacked a fancy name. So we gave them one, and it's caught on very nicely."<ref name="bliki">{{cite web |url=http://www.martinfowler.com/bliki/POJO.html |title=MF Bliki: POJO |work=MartinFowler.com }}</ref>

</blockquote>

The term "POJO" initially denoted a Java object which does not follow any of the major Java object models, conventions, or frameworks. It has since gained adoption as a language-agnostic term, because of the need for a common and easily understood term that contrasts with complicated object frameworks.{{Citation needed|date=April 2013}}