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<title>Understanding Java Persistence API</title>
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<p class="betadraftsubtitle">Beta Draft: 2012-09-11</p>
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<h1>Understanding Java Persistence API</h1>
<p>The Java Persistence API (JPA) part of the Java EE EJB 3.0 specification, simplifies Java persistence. It provides an object-relational mapping approach that lets you declaratively define how to map Java objects to relational database tables in a standard, portable way. JPA works both inside a Java EE application server and outside an EJB container in a Java Standard Edition (Java SE) application. An application written according to the Enterprise JavaBeans architecture is scalable, transactional, and secure.</p>
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<p class="subhead2">Related tasks</p>
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<a href="task_mapping.htm#BABDGBIJ">Mapping an entity</a><a id="sthref26" name="sthref26"></a>
<p class="subhead2">Related concepts</p>
<p>Java Persistence Architecture 2.0 specification (<code><a href="http://jcp.org/en/jsr/detail?id=317">http://jcp.org/en/jsr/detail?id=317</a></code>)</p>
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