prima implementazione di persistence usando eclipselink e database integrato in glassfish.

META-INF/persistence.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<persistence xmlns="http://xmlns.jcp.org/xml/ns/persistence"
+             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+             xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd"
+             version="2.1">
+
+
+    <persistence-unit name="test3" transaction-type="JTA">
+        <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
+        <jta-data-source>jdbc/__default</jta-data-source>
+        <properties>
+            <property name="eclipselink.ddl-generation" value="drop-and-create-tables" />
+            <property name="eclipselink.logging.level" value="FINE" />
+        </properties>
+    </persistence-unit>
+
+</persistence>