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<h1 class="chapter"><font face="arial, helvetica, sans-serif" color="#330099"><span class="secnum">19</span> Exposing JPA Entities Through RESTful Data Services</font></h1>
<a id="TLADG810" name="TLADG810"></a>
<p>This chapter describes how to expose JPA persistence units using RESTful Data services.</p>
<p>This chapter includes the following sections:</p>
<ul>
<li>
<p><a href="restful_jpa001.htm#A1585838">Introduction to the Solution</a></p>
</li>
<li>
<p><a href="restful_jpa002.htm#A1656101">Implementing the Solution</a></p>
</li>
<li>
<p><a href="restful_jpa003.htm#A1596021">Additional Resources</a></p>
</li>
<li>
<p><a href="restful_jpa004.htm#CHDEGJIG">RESTful Data Services API Reference</a></p>
</li>
</ul>
<a id="TLADG811" name="TLADG811"></a>
<p><b><font face="arial, helvetica, sans-serif" color="#330099">Use Case</font></b></p>
<p>Expose persistent data model and application logic over REST for the development of Thin Server Architecture (TSA) clients including HTML5/JavaScript and mobile technologies.</p>
<a id="TLADG812" name="TLADG812"></a>
<p><b><font face="arial, helvetica, sans-serif" color="#330099">Solution</font></b></p>
<p>Use RESTful Data Services to expose entities using a RESTful service, without writing JAX-RS code.</p>
<a id="TLADG813" name="TLADG813"></a>
<p><b><font face="arial, helvetica, sans-serif" color="#330099">Components</font></b></p>
<ul>
<li>
<p>A Java EE application server with the following:</p>
<ul>
<li>
<p>EclipseLink 2.4 or later.</p>
</li>
<li>
<p>Support for Java API for RESTful Web Services (JAX-RS) 1.0, for example the JAX-RS reference implementation, Jersey (see <code><a href="http://jersey.java.net/">http://jersey.java.net/</a></code>).</p>
</li>
</ul>
</li>
<li>
<p>A compliant Java Database Connectivity (JDBC) database, such as Oracle Database, Oracle Express, or MySQL</p>
</li>
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