[jboss-user] [JBoss Seam] - Re: Problem by inserting of entities
music
do-not-reply at jboss.com
Fri Apr 27 11:53:22 EDT 2007
"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!
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