<?xml version="1.0" encoding="UTF-8"?>
<persistence
   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_1_0.xsd"
   version="1.0">

    <persistence-unit name="naveroTest">
     <provider>org.hibernate.ejb.HibernatePersistence</provider>
     <class>xxx</class>
        ...


        <properties>
            <property name="hibernate.archive.autodetection" value="class, hbm"/>
            <property name="hibernate.show_sql" value="true"/>
            <property name="hibernate.connection.driver_class" value="org.hsqldb.jdbcDriver"/>
   <property name="hibernate.connection.url" value="jdbc:hsqldb:file:/tmp/naveroTestDB"/>
            <property name="hibernate.connection.username" value="sa"/>
            <property name="hibernate.connection.password" value=""/>
            <property name="hibernate.hbm2ddl.auto" value="create"/>
            <property name="hibernate.dialect" value="org.hibernate.dialect.HSQLDialect"/>
        </properties>
    </persistence-unit>
</persistence>

<?xml version="1.0" encoding="UTF-8"?>
    <beans xmlns:tx="http://www.springframework.org/schema/tx"
        xmlns="http://www.springframework.org/schema/beans"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd
                            http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd
                           http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security-2.0.4.xsd">

     <!-- For auto creation of tables -->
     <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
      <property name="driverClassName" value="org.hsqldb.jdbcDriver" />
      <property name="url" value="jdbc:hsqldb:file:/tmp/naveroTestDB" />
      <property name="username" value="sa" />
      <property name="password" value="" />
     </bean>

     <bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
      <property name="dataSource" ref="dataSource" />
      <property name="loadTimeWeaver">
       <bean class="org.springframework.instrument.classloading.InstrumentationLoadTimeWeaver" />
      </property>
      <property name="jpaVendorAdapter">
       <bean id="jpaAdapter" class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
        <property name="generateDdl" value="true" />
        <property name="databasePlatform" value="org.hibernate.dialect.HSQLDialect" />
        <property name="showSql" value="true" />
       </bean>
      </property>
     </bean>

     <bean id="PictureBean" class="de.navero.server.bl.PictureBean">
      <property name="entityManagerFactory"><ref local="entityManagerFactory" /></property>
     </bean>

    </beans>

<?xml version="1.0" encoding="UTF-8"?>
<persistence version="1.0" xmlns="http://java.sun.com/xml/ns/
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://.sun.com/xml/ns/persistence
  http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd">
    <persistence-unit name="naveroTest" transaction-type="RESOURCE_LOCAL" />
</persistence>

<?xml version="1.0" encoding="UTF-8"?>
<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
    <property name="jpaVendorAdapter">
        <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter"/>
    </property>
    <property name="jpaProperties">
        <props>
...
            <prop key="hibernate.hbm2ddl.auto">create-drop</prop>
        </props>
    </property>
    <property name="dataSource" ref="dataSource" />
</bean>

<!--property name="generateDdl" value="true"--> in the JpaAdapter,

<property name="hibernate.hbm2ddl.auto" value="create"/> in persistence.xml

<property name="hibernate.hbm2ddl.auto">update</property>

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
  <session-factory>
    <property name="dialect">
      org.hibernate.dialect.MySQLDialect
    </property>
    <property name="current_session_context_class">thread</property>
    <!-- When an HQL statement declares a true/false, replace with the standard Y/N -->
    <property name="hibernate.query.substitutions">true 'Y', false 'N'</property>
    <!-- A useful property do debugging queries.  Besure sure it is false or commented out when going PROD -->
    <!--        <property name="hibernate.show_sql">true</property>   -->
    <!-- Format the printed out SQL generated by Hibernate -->
    <property name="hibernate.format_sql">false</property>
    <!-- If enabled, Hibernate will collect statistics useful for performance tuning - JMX -->
    <property name="hibernate.generate_statistics">false</property>

    <property name="hibernate.hbm2ddl.auto">update</property>

    <mapping class=....