[jboss-user] [JBoss Seam] - Re: Problem by inserting of entities

[music]

"Sammy8306" wrote : The answers to those question would depend on the contents of your persistence.xml file, may be you can post that?

Hi, 

I also try a lot of things to do in persistance.xml. My persistance.xml look like this:


  | 
  | <?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="video_library" transaction-type="JTA">
  |     
  |       <provider>org.hibernate.ejb.HibernatePersistence</provider>
  |       <jta-data-source>java:/video_libraryDatasource</jta-data-source>
  |       
  |       <properties>
  |       
  |          <!--  database connection properties --> 
  |   	     <property name="hibernate.connection.driver_class" value="org.hsqldb.jdbcDriver" />
  |   		 <property name="hibernate.connection.url" value="jdbc:hsqldb:./db/" />
  |          <property name="hibernate.connection.username" value="sa" />
  |          <property name="hibernate.dialect" value="org.hibernate.dialect.HSQLDialect" />
  |           
  |  		 <!-- JDBC connection pool (use the built-in) --> 
  |   		 <property name="connection.pool_size" value="5" /> 
  |   		 
  | 	     <!-- Enable Hibernate's automatic session context management --> 
  |          <property name="hibernate.current_session_context_class" value="thread" /> 
  |          
  | 		 <!-- enable OSCacheProvider as second-level cache provider --> 
  |          <property name="hibernate.cache.provider_class" value="org.hibernate.cache.HashtableCacheProvider" /> 
  |          
  | 		 <!-- use query cache (individual queries should still be cacheable) -->
  |   		 <property name="hibernate.cache.use_query_cache" value="true" />
  |   		  
  | 		 <!-- with this option we can also completely disable second level cache --> 
  |          <property name="hibernate.cache.use_second_level_cache" value="true" />
  |           
  | 		 <!-- force hibernate to cache all data in humanreadable format --> 
  |          <property name="hibernate.cache.use_structured_entries" value="true" /> 
  |          
  | 		 <!-- Echo all executed SQL to stdout --> 
  |          <property name="show_sql" value="true" />
  |           
  |          <!-- preety print of all SQL-Statements --> 
  |          <property name="hibernate.format_sql" value="false" />
  |           
  | 		 <!-- Drop and re-create the database schema on startup --> 
  |          <property name="hbm2ddl.auto" value="create-drop" /> 
  |          
  | 		 <!-- enable generation of statistics --> 
  |          <property name="hibernate.generate_statistics" value="true" /> 
  | 
  |          <property name="jboss.entity.manager.factory.jndi.name" value="java:/video_libraryEntityManagerFactory"/>
  |          
  |          <property name="hibernate.transaction.manager_lookup_class" value="org.hibernate.transaction.JBossTransactionManagerLookup" /> 
  |          
  |          
  |       </properties>
  |       
  |     </persistence-unit>
  |     
  | </persistence>
  | 

I think that  the action "create-drop" should do some stuff for me. At least I have always use it in row hibernate and I have not any problems with existing database.

Thx for responding!

View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4041455#4041455

Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4041455