Important JPA components

Doc/Sda1/jpaintro.xml

@@ -186,6 +186,48 @@
     </mediaobject>
   </figure>
 
+  <figure xml:id="sda1_jpaintro_fig_jpaComponents">
+    <title><xref linkend="glo_JPA"/> components</title>
+
+    <glosslist>
+      <glossentry>
+        <glossterm><classname
+        xlink:href="https://docs.oracle.com/javaee/7/api/javax/persistence/EntityManagerFactory.html">EntityManagerFactory</classname></glossterm>
+
+        <glossdef>
+          <para>Bootstrapping a provider's implementation.</para>
+        </glossdef>
+      </glossentry>
+
+      <glossentry>
+        <glossterm><classname
+        xlink:href="https://docs.oracle.com/javaee/7/api/javax/persistence/EntityManager.html">EntityManager</classname></glossterm>
+
+        <glossdef>
+          <para>Managing a persistence context.</para>
+        </glossdef>
+      </glossentry>
+
+      <glossentry>
+        <glossterm><classname
+        xlink:href="https://docs.oracle.com/javaee/7/api/javax/persistence/EntityTransaction.html">EntityTransaction</classname></glossterm>
+
+        <glossdef>
+          <para>Start, commit and rollback transactions.</para>
+        </glossdef>
+      </glossentry>
+
+      <glossentry>
+        <glossterm><classname
+        xlink:href="https://docs.oracle.com/javaee/7/api/javax/persistence/Query.html">Query</classname></glossterm>
+
+        <glossdef>
+          <para>Start, commit and rollback transactions.</para>
+        </glossdef>
+      </glossentry>
+    </glosslist>
+  </figure>
+
   <section xml:id="sda1_jpaintro_sect_mappingObjectsRoundTrip">
     <title>A round trip mapping objects</title>