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stephenjanda
 Post subject: getCurrentSession and Jboss/JTA
PostPosted: Tue Dec 04, 2007 12:50 pm 
Newbie

Joined: Wed Jun 20, 2007 8:22 pm
Posts: 2
I am trying to have Jboss (4.2.2) and hibernate work together with JTA. I've poured through the hibernate and jboss wikis/forums/ref docs and I've seen this exception mentioned in some threads, but never resolved. I feel like I am just missing a simple setting or step. Any help would be appreciated. I deploy my hibernate classes via a .har file.

I have success using the following:
ctx = new InitialContext();
factory = (SessionFactory)ctx.lookup("java:/hibernate/SessionFactory");
Session hSess = factory.openSession();
Transaction tx = hSess.beginTransaction();

But I cannot get the following to work:
Session hSess = factory.getCurrentSession();

The error thrown is:
Quote:
org.hibernate.HibernateException: Unable to locate current JTA transaction at org.hibernate.context.JTASessionContext.currentSession(JTASessionContext.java:61) at org.hibernate.impl.SessionFactoryImpl.getCurrentSession(SessionFactoryImpl.java:544) at test.TestServlet.processRequest(TestServlet.java:57) at test.TestServlet.doGet(TestServlet.java:129) at javax.servlet.http.HttpServlet.service(HttpServlet.java:690) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:432) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157) at org.apache.catalina.authenticator.SingleSignOn.invoke(SingleSignOn.java:393) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446) at java.lang.Thread.run(Thread.java:595)

Obvously no transaction is obtained from the TransactionManager, but why? I thought that was the point of the method call to deal with opening the session for you.

I have the following properties setup.
Code:
<mbean code="org.jboss.hibernate.jmx.Hibernate" name="jboss.har:service=Hibernate">
        <depends>jboss:service=Naming</depends>
        <depends>jboss:service=TransactionManager</depends>       
        <attribute name="DatasourceName">java:/MyDS</attribute>
        <attribute name="Dialect">org.hibernate.dialect.Oracle9Dialect</attribute>
        <attribute name="SessionFactoryName">java:/hibernate/SessionFactory</attribute>
        <attribute name="Password">xxx</attribute>
        <attribute name="Username">xxx</attribute>       
        <attribute name="CacheProviderClass">org.hibernate.cache.NoCacheProvider</attribute>       
        <attribute name="QueryCacheEnabled">false</attribute>
        <attribute name="MinimalPutsEnabled">false</attribute>
        <attribute name="MaxFetchDepth">3</attribute>       
        <attribute name="ShowSqlEnabled">true</attribute>       
    </mbean>

hibernate.cfg.xml (i don't think this is actually needed with jboss):
Code:
<hibernate-configuration>
    <session-factory>
        <property name="current_session_context_class">jta</property>
        <property name="transaction.manager_lookup_class">org.hibernate.transaction.JBossTransactionManagerLookup</property>
        <property name="transaction.factory_class">org.hibernate.transaction.JTATransactionFactory</property>       
    </session-factory>
</hibernate-configuration>

datasource config:
Code:
<xa-datasource>
    <jndi-name>MyDS</jndi-name>
    <track-connection-by-tx/>
    <isSameRM-override-value>false</isSameRM-override-value>
    <xa-datasource-class>oracle.jdbc.xa.client.OracleXADataSource</xa-datasource-class>
    <xa-datasource-property name="URL">jdbc:oracle:oci8:@db</xa-datasource-property>
    <!-- Uses the pingDatabase method to check a connection is still valid before handing it out from the pool -->
    <!--valid-connection-checker-class-name>org.jboss.resource.adapter.jdbc.vendor.OracleValidConnectionChecker</valid-connection-checker-class-name-->
   
   <!-- Oracles XA datasource cannot reuse a connection outside a transaction once enlisted in a global transaction and vice-versa -->
    <no-tx-separate-pools/>

      <!-- corresponding type-mapping in the standardjbosscmp-jdbc.xml (optional) -->
      <metadata>
         <type-mapping>Oracle9i</type-mapping>
      </metadata>
  </xa-datasource>


Hibernate log after server starts reads ok by my interpretation:
Quote:
2007-12-03 16:44:41,580 INFO [org.hibernate.cfg.Environment] Hibernate 3.2.4.sp1
2007-12-03 16:44:41,595 INFO [org.hibernate.cfg.Environment] hibernate.properties not found
2007-12-03 16:44:41,595 INFO [org.hibernate.cfg.Environment] Bytecode provider name : javassist
2007-12-03 16:44:41,611 INFO [org.hibernate.cfg.Environment] using JDK 1.4 java.sql.Timestamp handling
2007-12-03 16:44:41,705 INFO [org.hibernate.cfg.Configuration] Searching for mapping documents in jar: my.har
2007-12-03 16:44:41,720 INFO [org.hibernate.cfg.Configuration] Found mapping document in jar: beans/tn3270_inactivity.hbm.xml
2007-12-03 16:44:41,751 DEBUG [org.hibernate.util.DTDEntityResolver] trying to resolve system-id [http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd]
2007-12-03 16:44:41,751 DEBUG [org.hibernate.util.DTDEntityResolver] recognized hibernate namespace; attempting to resolve on classpath under org/hibernate/
2007-12-03 16:44:41,767 DEBUG [org.hibernate.util.DTDEntityResolver] located [http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd] in classpath
2007-12-03 16:44:42,017 INFO [org.hibernate.cfg.HbmBinder] Mapping class: beans.InactiveDeviceBean -> tn3270.inactivity
2007-12-03 16:44:42,205 INFO [org.hibernate.util.NamingHelper] JNDI InitialContext properties:{}
2007-12-03 16:44:42,220 INFO [org.hibernate.connection.DatasourceConnectionProvider] Using datasource: java:/MyDS
2007-12-03 16:44:42,611 DEBUG [org.hibernate.cfg.SettingsFactory] could not get database version from JDBC metadata
2007-12-03 16:44:42,611 INFO [org.hibernate.cfg.SettingsFactory] RDBMS: Oracle, version: Oracle9i Enterprise Edition Release 9.2.0.1.0 - Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.1.0 - Production
2007-12-03 16:44:42,611 INFO [org.hibernate.cfg.SettingsFactory] JDBC driver: Oracle JDBC driver, version: 9.2.0.1.0
2007-12-03 16:44:42,642 INFO [org.hibernate.dialect.Dialect] Using dialect: org.hibernate.dialect.Oracle9Dialect
2007-12-03 16:44:42,642 WARN [org.hibernate.dialect.Oracle9Dialect] The Oracle9Dialect dialect has been deprecated; use either Oracle9iDialect or Oracle10gDialect instead
2007-12-03 16:44:42,642 INFO [org.hibernate.transaction.TransactionFactoryFactory] Transaction strategy: org.hibernate.transaction.JTATransactionFactory
2007-12-03 16:44:42,642 INFO [org.hibernate.util.NamingHelper] JNDI InitialContext properties:{}
2007-12-03 16:44:42,642 INFO [org.hibernate.transaction.TransactionManagerLookupFactory] instantiating TransactionManagerLookup: org.hibernate.transaction.JBossTransactionManagerLookup
2007-12-03 16:44:42,658 INFO [org.hibernate.transaction.TransactionManagerLookupFactory] instantiated TransactionManagerLookup
2007-12-03 16:44:42,658 INFO [org.hibernate.transaction.TransactionManagerLookupFactory] instantiating TransactionManagerLookup: org.hibernate.transaction.JBossTransactionManagerLookup
2007-12-03 16:44:42,658 INFO [org.hibernate.transaction.TransactionManagerLookupFactory] instantiated TransactionManagerLookup
2007-12-03 16:44:42,658 INFO [org.hibernate.cfg.SettingsFactory] Automatic flush during beforeCompletion(): enabled
2007-12-03 16:44:42,658 INFO [org.hibernate.cfg.SettingsFactory] Automatic session close at end of transaction: enabled
2007-12-03 16:44:42,658 INFO [org.hibernate.cfg.SettingsFactory] JDBC batch size: 15
2007-12-03 16:44:42,658 INFO [org.hibernate.cfg.SettingsFactory] JDBC batch updates for versioned data: disabled
2007-12-03 16:44:42,658 INFO [org.hibernate.cfg.SettingsFactory] Scrollable result sets: enabled
2007-12-03 16:44:42,658 DEBUG [org.hibernate.cfg.SettingsFactory] Wrap result sets: disabled
2007-12-03 16:44:42,658 INFO [org.hibernate.cfg.SettingsFactory] JDBC3 getGeneratedKeys(): disabled
2007-12-03 16:44:42,658 INFO [org.hibernate.cfg.SettingsFactory] Connection release mode: after_statement
2007-12-03 16:44:42,658 INFO [org.hibernate.cfg.SettingsFactory] Maximum outer join fetch depth: 3
2007-12-03 16:44:42,658 INFO [org.hibernate.cfg.SettingsFactory] Default batch fetch size: 1
2007-12-03 16:44:42,658 INFO [org.hibernate.cfg.SettingsFactory] Generate SQL with comments: disabled
2007-12-03 16:44:42,658 INFO [org.hibernate.cfg.SettingsFactory] Order SQL updates by primary key: disabled
2007-12-03 16:44:42,658 INFO [org.hibernate.cfg.SettingsFactory] Order SQL inserts for batching: disabled
2007-12-03 16:44:42,658 INFO [org.hibernate.cfg.SettingsFactory] Query translator: org.hibernate.hql.ast.ASTQueryTranslatorFactory
2007-12-03 16:44:42,658 INFO [org.hibernate.hql.ast.ASTQueryTranslatorFactory] Using ASTQueryTranslatorFactory
2007-12-03 16:44:42,658 INFO [org.hibernate.cfg.SettingsFactory] Query language substitutions: {}
2007-12-03 16:44:42,658 INFO [org.hibernate.cfg.SettingsFactory] JPA-QL strict compliance: disabled
2007-12-03 16:44:42,658 INFO [org.hibernate.cfg.SettingsFactory] Second-level cache: enabled
2007-12-03 16:44:42,658 INFO [org.hibernate.cfg.SettingsFactory] Query cache: disabled
2007-12-03 16:44:42,658 INFO [org.hibernate.cfg.SettingsFactory] Cache provider: org.hibernate.cache.NoCacheProvider
2007-12-03 16:44:42,658 INFO [org.hibernate.cfg.SettingsFactory] Optimize cache for minimal puts: disabled
2007-12-03 16:44:42,658 INFO [org.hibernate.cfg.SettingsFactory] Structured second-level cache entries: disabled
2007-12-03 16:44:42,673 INFO [org.hibernate.cfg.SettingsFactory] Echoing all SQL to stdout
2007-12-03 16:44:42,673 INFO [org.hibernate.cfg.SettingsFactory] Statistics: disabled
2007-12-03 16:44:42,673 INFO [org.hibernate.cfg.SettingsFactory] Deleted entity synthetic identifier rollback: disabled
2007-12-03 16:44:42,673 INFO [org.hibernate.cfg.SettingsFactory] Default entity-mode: pojo
2007-12-03 16:44:42,673 INFO [org.hibernate.cfg.SettingsFactory] Named query checking : enabled
2007-12-03 16:44:42,720 INFO [org.hibernate.impl.SessionFactoryImpl] building session factory
2007-12-03 16:44:42,720 DEBUG [org.hibernate.impl.SessionFactoryImpl] Session factory constructed with filter configurations : {}
2007-12-03 16:44:42,720 DEBUG [org.hibernate.impl.SessionFactoryImpl] instantiating session factory with properties: {hibernate.cache.use_minimal_puts=false, hibernate.transaction.flush_before_completion=true, hibernate.transaction.auto_close_session=true, hibernate.cache.provider_class=org.hibernate.cache.NoCacheProvider, hibernate.transaction.manager_lookup_class=org.hibernate.transaction.JBossTransactionManagerLookup, hibernate.dialect=org.hibernate.dialect.Oracle9Dialect, hibernate.cache.use_query_cache=false, hibernate.max_fetch_depth=3, hibernate.connection.agressive_release=true, hibernate.connection.username=xxx, hibernate.connection.datasource=java:/MyDS, hibernate.show_sql=true, hibernate.connection.password=antelope, hibernate.connection.release_mode=after_statement, hibernate.transaction.factory_class=org.hibernate.transaction.JTATransactionFactory}
2007-12-03 16:44:43,064 DEBUG [org.hibernate.impl.SessionFactoryObjectFactory] initializing class SessionFactoryObjectFactory
2007-12-03 16:44:43,080 DEBUG [org.hibernate.impl.SessionFactoryObjectFactory] registered: 8a1f66ba16a1f7d70116a1f7d9380000 (unnamed)
2007-12-03 16:44:43,080 INFO [org.hibernate.impl.SessionFactoryObjectFactory] Not binding factory to JNDI, no JNDI name configured
2007-12-03 16:44:43,080 DEBUG [org.hibernate.impl.SessionFactoryImpl] instantiated session factory
2007-12-03 16:44:43,080 DEBUG [org.hibernate.impl.SessionFactoryImpl] obtaining JTA TransactionManager
2007-12-03 16:44:43,080 INFO [org.hibernate.util.NamingHelper] JNDI InitialContext properties:{}
2007-12-03 16:44:43,080 DEBUG [org.hibernate.impl.SessionFactoryImpl] Checking 0 named HQL queries
2007-12-03 16:44:43,080 DEBUG [org.hibernate.impl.SessionFactoryImpl] Checking 0 named SQL queries
2007-12-03 16:44:43,080 DEBUG [org.hibernate.impl.SessionFactoryImpl] Returning a Reference to the SessionFactory


Any ideas?
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knoll
 Post subject:
PostPosted: Wed Dec 05, 2007 2:18 am 
Beginner
Beginner

Joined: Fri Jun 25, 2004 11:47 am
Posts: 34
Hi,

I'm also using JBoss integrated with Hibernate. The manner I'm using the session opening and transaction start/commit/rollback is delegated to an EJB Session Stateless. So, the session is open and closed and transaction is committed by the method on the EJB. In order to have that:
1. You don't need to have an hibernate.cfg.xml xml but define an hibernate-service.xml to your har (this is the setup for the hibernate MBean). i.e.
Code:
<server>
  <mbean code="org.jboss.hibernate.jmx.Hibernate" name="Company:Service=Persistence">

    <!-- #========================================================# -->
    <!-- #= Bind the Hibernate service to JNDI                   =# -->
    <!-- #========================================================# -->
    <attribute name="SessionFactoryName">java:/ch/persistence/hibernate/SessionFactory</attribute>
   
    <!-- #========================================================# -->
    <!-- #= Datasource setting                                   =# -->
    <!-- #========================================================# -->
    <attribute name="Dialect">@database.dialect@</attribute>                    <!-- hibernate.dialect                       -->
    <attribute name="DatasourceName">@database.datasource@</attribute>          <!-- hibernate.connection.datasource         -->
    <attribute name="Username">@database.user.name@</attribute>                 <!-- hibernate.connection.username           -->
    <attribute name="Password">@database.user.password@</attribute>             <!-- hibernate.connection.password           -->

    <!-- #========================================================# -->
    <!-- #= JDBC Settings. For now, set nothing, only when       =# -->
    <!-- #========================================================# -->      
    <attribute name="JdbcBatchSize"></attribute>                                         <!-- hibernate.jdbc.batch_size               -->
    <attribute name="JdbcFetchSize"></attribute>                                         <!-- hibernate.jdbc.fetch_size               -->
    <attribute name="JdbcScrollableResultSetEnabled"></attribute>                       <!-- hibernate.jdbc.use_scrollable_resultset --> 

    <!-- #========================================================# -->
    <!-- #= JDBC Settings. For now, set nothing, only when       =# -->
    <!-- #========================================================# -->      
    <attribute name="MaxFetchDepth"></attribute>                                         <!-- hibernate.max_fetch_depth               -->
   
    <!-- #========================================================# -->
    <!-- #= Caching setup. Nothing for now                       =# -->
    <!-- #========================================================# -->      
    <attribute name="QueryCacheEnabled">false</attribute>                                <!-- hibernate.cache.use_query_cache         -->
    <attribute name="CacheProviderClass"></attribute>                                    <!-- hibernate.cache.provider_class          -->
    <attribute name="CacheRegionPrefix"></attribute>                                     <!-- hibernate.cache.region_prefix           -->

    <!-- #========================================================# -->
    <!-- #= Caching setup. Just specify the class implementation =# -->
    <!-- #========================================================# -->      
    <attribute name="ShowSqlEnabled">false</attribute>                                   <!-- hibernate.show_sql                      -->
    <attribute name="StatGenerationEnabled">false</attribute>                            <!-- hibernate.generate_statistics           -->
  </mbean>
</server>

2. Then, I create an EJB Stateless:
Code:
@Stateless
public class AccountServiceBean implements AccountService {
  /**
   * {@inheritDoc}
   */
  public List<Account> findAll() {
    return DaoFactory.DEFAULT.getAccountDao().findAll();
  }

When you connect to the EJB and call the find all method, hibernate session is opened and transaction started.
3. The hibernateutil java file is then simple as this:
Code:
  private static final String HIBERNATE_SESSION_FACTORY = "java:/ch/persistence/hibernate/SessionFactory";
  private static final Logger LOG                       = Logger.getLogger(HibernateUtil.class);

  public static Session getSession() {
    try {
      InitialContext context = new InitialContext();
      return ((SessionFactory) context.lookup(HIBERNATE_SESSION_FACTORY)).getCurrentSession();
    } catch (HibernateException he) {
      throw new RuntimeException("Configuration problem : " + he.getMessage(), he);
    } catch (NamingException ne) {
      throw new RuntimeException("Naming problem : " + ne.getMessage(), ne);
    }
  }

4. You can find more documentation here: http://docs.jboss.org/jbossas/jboss4guide/r5/html/ch13.html#ch13.mbean.sect
Read the all chapter....

Hope this will put you on track.
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