Configuration persistence H2 (refactoring nommage)

@@ -2,9 +2,9 @@
 <persistence version="2.0" xmlns="http://java.sun.com/xml/ns/persistence"
              xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
              xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">
-    <persistence-unit name="book-pu" transaction-type="JTA">
+    <persistence-unit name="h2-pu" transaction-type="JTA">
         <provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
-        <jta-data-source>bookDatabase</jta-data-source>
+        <jta-data-source>H2Database</jta-data-source>
         <exclude-unlisted-classes>false</exclude-unlisted-classes>
         <properties>
             <property name="hibernate.hbm2ddl.auto" value="create-drop" />