zecas zecas [http://community.jboss.org/people/zecas] created the discussion
"JBoss : persistence and EntityManager injection" To view the discussion, visit: http://community.jboss.org/message/566354#566354 -------------------------------------------------------------- Hi, I'm starting a small testing project from scratch, but I'm getting some trouble configuring JPA persistence ... I'll post some code fragments and hope someone can enlight me on the issue. I have an EAR, my-ear, and inside there is a single WAR, my-war. All definitions should be placed correctly, since I can make it to pick all settings, even those defined in "persistence.xml". my-war structure C:. | index.jsp | +---META-INF | MANIFEST.MF | \---WEB-INF | faces-config.xml | jboss-web.xml | web.xml | +---classes | +---com | | \---my | | \---package | | SimpleMessage.class | | | \---META-INF | persistence.xml | \---lib web.xml <web-app ...> ... <resource-ref> <description>Datasource Connection</description> <res-ref-name>jdbc/MyDB</res-ref-name> <res-type>javax.sql.DataSource</res-type> <res-auth>Container</res-auth> <res-sharing-scope>Shareable</res-sharing-scope> </resource-ref> </web-app> jboss-web.xml <jboss-web> <resource-ref> <res-ref-name>jdbc/MyDB</res-ref-name> <jndi-name>java:/ds/MyDB</jndi-name> </resource-ref> </jboss-web> persistence.xml <persistence version="2.0" xmlns="http://java.sun.com/xml/ns/persistence"; xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";> <persistence-unit name="punit"> <jta-data-source>java:jdbc/MyDB</jta-data-source> </persistence-unit> </persistence> My Java code has the following class: SimpleMessage.java package com.my.package; import javax.persistence.PersistenceContext; public class SimpleMessage { @PersistenceContext private EntityManager em; @PersistenceUnit(name="punit") private EntityManagerFactory emf; public void something() { if( em!=null ) { System.out.println("EntityManager Available!"); } else { System.out.println("EntityManager is NULL!"); } if( emf!=null ) { System.out.println("EntityManagerFactory Available!"); } else { System.out.println("EntityManagerFactory is NULL!"); } } } I intend to test just this ... a simple basic class where I inject the manager instance. The class is not an EJB class, just an basic injected class. When deploying, I get the following result: 2010-10-13 14:09:55,197 INFO [org.jboss.web.tomcat.service.deployers.TomcatDeployment] (HDScanner) deploy, ctxPath=/my-war 2010-10-13 14:09:55,213 ERROR [org.jboss.web.tomcat.service.deployers.TomcatDeployment] (HDScanner) ENC setup failed java.lang.NullPointerException at org.jboss.injection.PersistenceUnitHandler.getManagedEntityManagerFactory(PersistenceUnitHandler.java:149) at org.jboss.injection.PcEncInjector.inject(PcEncInjector.java:76) at org.jboss.web.tomcat.service.TomcatInjectionContainer.populateEnc(TomcatInjectionContainer.java:482) However, if in "persistence.xml" I instead define the datasource reference as "java:ds/MyDB" (datasource name definition on JBoss), I obtain the following result: 2010-10-13 14:15:20,552 INFO [org.jboss.jpa.deployment.PersistenceUnitDeployment] (HDScanner) Starting persistence unit persistence.unit:unitName=my-ear-1.0.0.ear/my-war-1.0.0.war#punit 2010-10-13 14:15:20,552 INFO [org.hibernate.ejb.Ejb3Configuration] (HDScanner) Processing PersistenceUnitInfo [ name: punit ...] 2010-10-13 14:15:20,552 WARN [org.hibernate.ejb.Ejb3Configuration] (HDScanner) Persistence provider caller does not implement the EJB3 spec correctly. PersistenceUnitInfo.getNewTempClassLoader() is null. 2010-10-13 14:15:20,568 INFO [org.hibernate.cfg.search.HibernateSearchEventListenerRegister] (HDScanner) Unable to find org.hibernate.search.event.FullTextIndexEventListener on the classpath. Hibernate Search is not enabled. 2010-10-13 14:15:20,568 INFO [org.hibernate.connection.ConnectionProviderFactory] (HDScanner) Initializing connection provider: org.hibernate.ejb.connection.InjectedDataSourceConnectionProvider 2010-10-13 14:15:20,568 INFO [org.hibernate.ejb.connection.InjectedDataSourceConnectionProvider] (HDScanner) Using provided datasource 2010-10-13 14:15:20,568 INFO [org.hibernate.cfg.SettingsFactory] (HDScanner) RDBMS: MySQL, version: 5.1.41-3ubuntu12.6 2010-10-13 14:15:20,568 INFO [org.hibernate.cfg.SettingsFactory] (HDScanner) JDBC driver: MySQL-AB JDBC Driver, version: mysql-connector-java-5.1.10 ( Revision: ${svn.Revision} ) 2010-10-13 14:15:20,568 INFO [org.hibernate.dialect.Dialect] (HDScanner) Using dialect: org.hibernate.dialect.MySQLDialect 2010-10-13 14:15:20,568 INFO [org.hibernate.transaction.TransactionFactoryFactory] (HDScanner) Transaction strategy: org.hibernate.ejb.transaction.JoinableCMTTransactionFactory 2010-10-13 14:15:20,568 INFO [org.hibernate.transaction.TransactionManagerLookupFactory] (HDScanner) instantiating TransactionManagerLookup: org.hibernate.transaction.JBossTransactionManagerLookup 2010-10-13 14:15:20,568 INFO [org.hibernate.transaction.TransactionManagerLookupFactory] (HDScanner) instantiated TransactionManagerLookup 2010-10-13 14:15:20,568 INFO [org.hibernate.cfg.SettingsFactory] (HDScanner) Automatic flush during beforeCompletion(): disabled 2010-10-13 14:15:20,568 INFO [org.hibernate.cfg.SettingsFactory] (HDScanner) Automatic session close at end of transaction: disabled 2010-10-13 14:15:20,568 INFO [org.hibernate.cfg.SettingsFactory] (HDScanner) JDBC batch size: 15 2010-10-13 14:15:20,568 INFO [org.hibernate.cfg.SettingsFactory] (HDScanner) JDBC batch updates for versioned data: disabled 2010-10-13 14:15:20,568 INFO [org.hibernate.cfg.SettingsFactory] (HDScanner) Scrollable result sets: enabled 2010-10-13 14:15:20,568 INFO [org.hibernate.cfg.SettingsFactory] (HDScanner) JDBC3 getGeneratedKeys(): enabled 2010-10-13 14:15:20,568 INFO [org.hibernate.cfg.SettingsFactory] (HDScanner) Connection release mode: auto 2010-10-13 14:15:20,568 INFO [org.hibernate.cfg.SettingsFactory] (HDScanner) Maximum outer join fetch depth: 2 2010-10-13 14:15:20,568 INFO [org.hibernate.cfg.SettingsFactory] (HDScanner) Default batch fetch size: 1 2010-10-13 14:15:20,568 INFO [org.hibernate.cfg.SettingsFactory] (HDScanner) Generate SQL with comments: disabled 2010-10-13 14:15:20,568 INFO [org.hibernate.cfg.SettingsFactory] (HDScanner) Order SQL updates by primary key: disabled 2010-10-13 14:15:20,568 INFO [org.hibernate.cfg.SettingsFactory] (HDScanner) Order SQL inserts for batching: disabled 2010-10-13 14:15:20,568 INFO [org.hibernate.cfg.SettingsFactory] (HDScanner) Query translator: org.hibernate.hql.ast.ASTQueryTranslatorFactory 2010-10-13 14:15:20,568 INFO [org.hibernate.hql.ast.ASTQueryTranslatorFactory] (HDScanner) Using ASTQueryTranslatorFactory 2010-10-13 14:15:20,568 INFO [org.hibernate.cfg.SettingsFactory] (HDScanner) Query language substitutions: {} 2010-10-13 14:15:20,568 INFO [org.hibernate.cfg.SettingsFactory] (HDScanner) JPA-QL strict compliance: enabled 2010-10-13 14:15:20,568 INFO [org.hibernate.cfg.SettingsFactory] (HDScanner) Second-level cache: enabled 2010-10-13 14:15:20,568 INFO [org.hibernate.cfg.SettingsFactory] (HDScanner) Query cache: disabled 2010-10-13 14:15:20,568 INFO [org.hibernate.cfg.SettingsFactory] (HDScanner) Cache region factory : org.hibernate.cache.impl.bridge.RegionFactoryCacheProviderBridge 2010-10-13 14:15:20,568 INFO [org.hibernate.cache.impl.bridge.RegionFactoryCacheProviderBridge] (HDScanner) Cache provider: org.hibernate.cache.HashtableCacheProvider 2010-10-13 14:15:20,568 INFO [org.hibernate.cfg.SettingsFactory] (HDScanner) Optimize cache for minimal puts: disabled 2010-10-13 14:15:20,568 INFO [org.hibernate.cfg.SettingsFactory] (HDScanner) Cache region prefix: persistence.unit:unitName=my-ear-1.0.0.ear/my-war-1.0.0.war#punit 2010-10-13 14:15:20,568 INFO [org.hibernate.cfg.SettingsFactory] (HDScanner) Structured second-level cache entries: disabled 2010-10-13 14:15:20,568 INFO [org.hibernate.cfg.SettingsFactory] (HDScanner) Statistics: disabled 2010-10-13 14:15:20,568 INFO [org.hibernate.cfg.SettingsFactory] (HDScanner) Deleted entity synthetic identifier rollback: disabled 2010-10-13 14:15:20,568 INFO [org.hibernate.cfg.SettingsFactory] (HDScanner) Default entity-mode: pojo 2010-10-13 14:15:20,568 INFO [org.hibernate.cfg.SettingsFactory] (HDScanner) Named query checking : enabled 2010-10-13 14:15:20,568 INFO [org.hibernate.impl.SessionFactoryImpl] (HDScanner) building session factory 2010-10-13 14:15:20,568 INFO [org.hibernate.impl.SessionFactoryObjectFactory] (HDScanner) Factory name: persistence.unit:unitName=my-ear-1.0.0.ear/my-war-1.0.0.war#punit 2010-10-13 14:15:20,568 INFO [org.hibernate.util.NamingHelper] (HDScanner) JNDI InitialContext properties:{java.naming.factory.initial=org.jnp.interfaces.NamingContextFactory, java.naming.factory.url.pkgs=org.jboss.naming:org.jnp.interfaces} 2010-10-13 14:15:20,584 INFO [org.hibernate.impl.SessionFactoryObjectFactory] (HDScanner) Bound factory to JNDI name: persistence.unit:unitName=my-ear-1.0.0.ear/my-war-1.0.0.war#punit 2010-10-13 14:15:20,584 WARN [org.hibernate.impl.SessionFactoryObjectFactory] (HDScanner) InitialContext did not implement EventContext 2010-10-13 14:15:20,584 INFO [org.hibernate.util.NamingHelper] (HDScanner) JNDI InitialContext properties:{java.naming.factory.initial=org.jnp.interfaces.NamingContextFactory, java.naming.factory.url.pkgs=org.jboss.naming:org.jnp.interfaces} 2010-10-13 14:15:20,724 INFO [org.jboss.web.tomcat.service.deployers.TomcatDeployment] (HDScanner) deploy, ctxPath=/my-war 2010-10-13 14:15:20,755 INFO [javax.enterprise.resource.webcontainer.jsf.config] (HDScanner) Initializing Mojarra (1.2_12-b01-FCS) for context '/my-war' 2010-10-13 14:15:20,896 ERROR [STDERR] (HDScanner) SLF4J: Class path contains multiple SLF4J bindings. 2010-10-13 14:15:20,896 ERROR [STDERR] (HDScanner) SLF4J: Found binding in [vfszip:/C:/Program Files/Java/jboss-5.1.0.GA/common/lib/slf4j-jboss-logging.jar/org/slf4j/impl/StaticLoggerBinder.class] 2010-10-13 14:15:20,896 ERROR [STDERR] (HDScanner) SLF4J: Found binding in [vfszip:/C:/Program Files/Java/jboss-5.1.0.GA/server/default/deploy/my-ear-1.0.0.ear/logback-classic-0.9.20.jar/org/slf4j/impl/StaticLoggerBinder.class] 2010-10-13 14:15:20,912 ERROR [STDERR] (HDScanner) SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation. So my questions are: *1#* After invoking "SimpleMessage.something();" (using the second option "java:ds/MyDB" in "persistence.xml") I receive the following output: EntityManager is NULL! EntityManagerFactory is NULL! So no injection happened ... shouldn't it occur? what happened? *2#* I was assuming that "web.xml" defines the JNDI to be used inside my webapp, then "jboss-web.xml" would map that name into the internall JNDI defined in JBoss. In this case for JBoss usage, if changing to IBM WebSphere I would use another mapping config file. BUT ... I was also assuming that "persistence.xml" would define the JNDI that is defined in "web.xml" ... and not the one defined in application server level ... so I would get an abstraction from whichever server I'll deploy my project into. Shouldn't this be working like that? What am I doing wrong? Any help would be appreciated ... I really need to understand and put this to work ... Thanks. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/566354#566354] Start a new discussion in Beginner's Corner at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&containerType=14&container=2075]
_______________________________________________ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
