.NET Persistence API: Difference between revisions

Revision as of 11:44, 23 May 2019

Revision as of 06:47, 3 October 2019

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The '''.NET Persistence API''', also referred to as '''NPA''', is a persistence and [[object-relational mapping]] (ORM) specification for the [[.NET Framework|.NET framework]].<ref>[http://www.npersistence.org/ NPersistence | JPA for the .NET platform<!-- Bot generated title -->]</ref>

NPA is based on the [[Java Persistence API]] (JPA), which is the standard persistence API in the [[Java (programming language)|Java]] world. NPA follows JPA by providing a complete persistence API and a rich set of ORM features.<ref name=autogenerated1>{{Cite web |url=http://www.npersistence.org/faq |title=FAQ {{!}} NPersistence |access-date=2018-08-24 |archive-url=https://web.archive.org/web/20120426082101/http://www.npersistence.org/faq |archive-date=2012-04-26 |deadurl-url=yes |dfstatus=dead }}</ref><ref>[https://stackoverflow.com/questions/2756307/what-is-the-equivalent-of-jpa-in-net c# - What is the equivalent of JPA in .NET? - Stack Overflow<!-- Bot generated title -->]</ref>

== Motivation ==

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== Technology ==

The main features of NPA include:<ref>{{Cite web |url=http://www.npersistence.org/api-reference |title=API Reference |access-date=2018-08-24 |archive-url=https://web.archive.org/web/20120426082146/http://www.npersistence.org/api-reference |archive-date=2012-04-26 |deadurl-url=yes |dfstatus=dead }}</ref><ref>[http://nugetmusthaves.com/Package/NPersistence NPersistence - NuGet Must Haves<!-- Bot generated title -->]</ref>

* Object-oriented API for working against databases (usually RDBMS).

* Query language, based on SQL, for retrieving data from the database in an object oriented manner.

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Persistence and ORM vendors can provide their own implementations of NPA.

First implementation, NPA for [[NHibernate]], was released in December 2011.<ref>{{Cite web |url=http://www.npersistence.org/nhibernate |title=NPA for NHibernate |access-date=2011-12-30 |archive-url=https://web.archive.org/web/20120426082225/http://www.npersistence.org/nhibernate |archive-date=2012-04-26 |deadurl-url=yes |dfstatus=dead }}</ref><ref>[https://archive.today/20130928184005/http://forums.anandtech.com/archive/index.php/t-2108535.html What is the equivalent of Java Persistence API for .NET? - AnandTech Forums<!-- Bot generated title -->]</ref>

== References ==