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Line 1: 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>[http://www.npersistence.org/faq FAQ \| NPersistence<!-- Bot generated title -->]</ref><ref>[http://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 == The main purposes of the .NET Persistence API (NPA) are:<ref~~>http:~~ name=autogenerated1 /~~/www.npersistence.org/faq</ref~~> * To provide a vendor-free persistence API for .NET, making switching from one persistence provider to another easier (avoiding [[vendor lock-in]]). * To provide a cross-language persistence API by extending the popular [[Java Persistence API\|Java Persistence API (JPA)]] to all the .NET programming languages. == Technology == The main features of NPA include:<ref>[http://www.npersistence.org/api-reference API Reference \| NPersistence<!-- Bot generated title -->]</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. Line 21: Persistence and ORM vendors can provide their own implementations of NPA. First implementation, NPA for [[NHibernate]], was released in December 2011.<ref>[http://www.npersistence.org/nhibernate NPA for NHibernate \| NPersistence<!-- Bot generated title -->]</ref><ref>[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 ==

.NET Persistence API: Difference between revisions