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| <title>Chapter 1. Introduction</title><link rel="stylesheet" href="css/docbook.css" type="text/css"><meta name="generator" content="DocBook XSL Stylesheets V1.72.0"><link rel="start" href="manual.html" title="Apache OpenJPA User's Guide"><link rel="up" href="jpa_overview.html" title="Part 2. Java Persistence API"><link rel="prev" href="jpa_overview.html" title="Part 2. Java Persistence API"><link rel="next" href="jpa_overview_intro_transpers.html" title="2. Lightweight Persistence"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 1. |
| Introduction |
| </th></tr><tr><td width="20%" align="left"><a accesskey="p" href="jpa_overview.html">Prev</a> </td><th width="60%" align="center">Part 2. Java Persistence API</th><td width="20%" align="right"> <a accesskey="n" href="jpa_overview_intro_transpers.html">Next</a></td></tr></table><hr></div><div class="chapter" lang="en" id="jpa_overview_intro"><div class="titlepage"><div><div><h2 class="title"><a name="jpa_overview_intro"></a>Chapter 1. |
| Introduction |
| </h2></div></div></div><div class="toc"><p><b>Table of Contents</b></p><dl><dt><span class="section"><a href="jpa_overview_intro.html#jpa_overview_intro_audience">1. |
| Intended Audience |
| </a></span></dt><dt><span class="section"><a href="jpa_overview_intro_transpers.html">2. |
| Lightweight Persistence |
| </a></span></dt></dl></div><p> |
| <a class="indexterm" name="d0e47"></a> |
| <a class="indexterm" name="d0e53"></a> |
| The Java Persistence API (JPA) is a specification from |
| Sun Microsystems for the persistence of Java objects to any relational |
| datastore. JPA requires J2SE 1.5 (also referred to as "Java 5") or |
| higher, as it makes heavy use of new Java language features such as annotations |
| and generics. This document provides an overview of JPA. Unless |
| otherwise noted, the information presented applies to all JPA implementations. |
| </p><div class="note" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Note</h3><p> |
| For coverage of OpenJPA's many extensions to the JPA specification, |
| see the <a href="ref_guide_intro.html" title="Chapter 1. Introduction">Reference Guide</a>. |
| </p></div><div class="section" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="jpa_overview_intro_audience"></a>1. |
| Intended Audience |
| </h2></div></div></div><p> |
| This document is intended for developers who want to learn about JPA |
| in order to use it in their applications. It assumes that you have a strong |
| knowledge of object-oriented concepts and Java, including Java 5 annotations and |
| generics. It also assumes some experience with relational databases and the |
| Structured Query Language (SQL). |
| </p></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="jpa_overview.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="jpa_overview.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="jpa_overview_intro_transpers.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Part 2. Java Persistence API </td><td width="20%" align="center"><a accesskey="h" href="manual.html">Home</a></td><td width="40%" align="right" valign="top"> 2. |
| Lightweight Persistence |
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