11:15 a.m.
Hi all.
I am attempting to reverse engineer a virtual database from Teiid and generate entities
using Forge. However, when I enter the ‘generate-entities’ command, I get a NoClassFound
error for the Teiid Dialect. Now, I am trying to figure out how to get the Teiid
Hibernate Dialect jar file on the class path. I have tried a couple of different things:
dropping the jar in the <forge home>/lib directory as well as adding it as a
module. However, I am still getting the same error.
Any pointers would be greatly appreciated.
Thanks!
Blaine Mincey
Specifically, this is what I am doing:
$ new-project --named FinancialsWeb --topLevelPackage com.jboss.teiid
$ persistence setup --provider HIBERNATE --container JBOSS_EAP6
$ generate-entities --dialect org.teiid.dialect.TeiidDialect --driver
org.teiid.jdbc.TeiidDriver --url jdbc:teiid:Financials --pathToDriver
/Users/bmincey/RedHat/jdv/jdv6/jboss-eap-6.1/dataVirtualization/jdbc/teiid-8.4.1-redhat-7-jdbc.jar
--user user --password user
This final command throws the following exception which makes sense to me. I just cannot
figure out how to make Forge find the dialect.
org.hibernate.HibernateException: Dialect class not found: org.teiid.dialect.TeiidDialect
[FinancialsWeb] FinancialsWeb $ at
org.hibernate.dialect.resolver.DialectFactory.constructDialect(DialectFactory.java:160)
at org.hibernate.dialect.resolver.DialectFactory.buildDialect(DialectFactory.java:109)
at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:138)
at org.hibernate.cfg.Configuration.buildSettingsInternal(Configuration.java:2163)
at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2155)
at
org.hibernate.cfg.JDBCMetaDataConfiguration.readFromJDBC(JDBCMetaDataConfiguration.java:41)
at
org.hibernate.forge.generate.GenerateEntitiesPlugin$1.run(GenerateEntitiesPlugin.java:179)
at
org.hibernate.forge.common.UrlClassLoaderExecutor.execute(UrlClassLoaderExecutor.java:13)
at
org.hibernate.forge.generate.GenerateEntitiesPlugin.doReverseEngineering(GenerateEntitiesPlugin.java:171)
at
org.hibernate.forge.generate.GenerateEntitiesPlugin.generateEntities(GenerateEntitiesPlugin.java:78)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.jboss.forge.shell.command.Execution.perform(Execution.java:160)
at org.jboss.forge.shell.command.fshparser.FSHRuntime.run(FSHRuntime.java:109)
at org.jboss.forge.shell.command.fshparser.FSHRuntime.run(FSHRuntime.java:47)
at org.jboss.forge.shell.ShellImpl$ExecutorThread.run(ShellImpl.java:796)
at org.jboss.forge.shell.ShellImpl.execute(ShellImpl.java:819)
at org.jboss.forge.shell.ShellImpl.doShell(ShellImpl.java:609)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.jboss.weld.bean.proxy.AbstractBeanInstance.invoke(AbstractBeanInstance.java:48)
at org.jboss.weld.bean.proxy.ProxyMethodHandler.invoke(ProxyMethodHandler.java:125)
at
org.jboss.forge.shell.ShellImpl$Proxy$_$$_WeldClientProxy.doShell(ShellImpl$Proxy$_$$_WeldClientProxy.java)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.jboss.weld.util.reflection.SecureReflections$13.work(SecureReflections.java:305)
at
org.jboss.weld.util.reflection.SecureReflectionAccess.run(SecureReflectionAccess.java:54)
at
org.jboss.weld.util.reflection.SecureReflectionAccess.runAsInvocation(SecureReflectionAccess.java:163)
at org.jboss.weld.util.reflection.SecureReflections.invoke(SecureReflections.java:299)
at
org.jboss.weld.introspector.jlr.WeldMethodImpl.invokeOnInstance(WeldMethodImpl.java:188)
at
org.jboss.weld.introspector.ForwardingWeldMethod.invokeOnInstance(ForwardingWeldMethod.java:59)
at
org.jboss.weld.injection.MethodInjectionPoint.invokeOnInstanceWithSpecialValue(MethodInjectionPoint.java:198)
at org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:282)
at org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:265)
at org.jboss.weld.event.ObserverMethodImpl.notify(ObserverMethodImpl.java:234)
at org.jboss.weld.manager.BeanManagerImpl.notifyObservers(BeanManagerImpl.java:635)
at org.jboss.weld.manager.BeanManagerImpl.fireEvent(BeanManagerImpl.java:622)
at org.jboss.weld.manager.BeanManagerImpl.fireEvent(BeanManagerImpl.java:616)
at org.jboss.forge.shell.Bootstrap$1.run(Bootstrap.java:186)
at java.lang.Thread.run(Thread.java:744)
Caused by: java.lang.ClassNotFoundException: org.teiid.dialect.TeiidDialect from [Module
"org.jboss.hibernate.forge.hibernate-tools-plugin:1.2.0-SNAPSHOT-aa91c2fc-bbc0-4865-b3a7-17aee99fd144"
from local module loader @6744719c (roots:
/Users/bmincey/Java/forge-distribution-1.4.4.Final/modules,/Users/bmincey/.forge/plugins,/Users/bmincey/RedHat/jbds/jbds7.1/studio/plugins/org.jboss.tools.forge.runtime.ext_1.2.1.Final-v20131205-0921-B140/modules)]
at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:190)
at
org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:468)
at
org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:456)
at
org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:398)
at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:120)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:190)
at org.hibernate.util.ReflectHelper.classForName(ReflectHelper.java:192)
at
org.hibernate.dialect.resolver.DialectFactory.constructDialect(DialectFactory.java:157)
... 45 more
Posted by forums
Original post: https://community.jboss.org/message/856250#856250
9:51 p.m.
Hi Blaine,
When the Forge plugin generates entities, the jar with the JDBC driver is dynamically
added to a new class loader that is used for that task. Since the Teiid dialect is
probably not in the standard Hibernate distribution, you would need to also add this
dialect to this class loader. I have never tried such a scenario but I think that you
could do what you want to do by repackaging the jar containing the JDBC driver and adding
the Teiid dialect related classes to this new jar.
Let us know if this works.
Cheers,
Koen
Posted by forums
Original post: https://community.jboss.org/message/856299#856299
2:46 p.m.
Hi Koen.
Thanks for the reply. I did as you suggested and added the dialect to the Teiid JDBC
driver JAR and it appears to have found it. However, now I am getting the following
exception. I am not sure if this is something to do with Hibernate or the Teiid Dialect
class. Do you have any ideas? For what it is worth, you at least helped me figure out my
ClassNotFoundException and thanks for that!
***ERROR*** An unexpected error happened during reverse engineering.
java.lang.NoSuchFieldError: INSTANCE
at org.teiid.dialect.TeiidDialect.<clinit>(TeiidDialect.java:38)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at java.lang.Class.newInstance(Class.java:374)
at
org.hibernate.dialect.resolver.DialectFactory.constructDialect(DialectFactory.java:157)
at org.hibernate.dialect.resolver.DialectFactory.buildDialect(DialectFactory.java:109)
at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:138)
at org.hibernate.cfg.Configuration.buildSettingsInternal(Configuration.java:2163)
at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2155)
at
org.hibernate.cfg.JDBCMetaDataConfiguration.readFromJDBC(JDBCMetaDataConfiguration.java:41)
at
org.hibernate.forge.generate.GenerateEntitiesPlugin$1.run(GenerateEntitiesPlugin.java:179)
at
org.hibernate.forge.common.UrlClassLoaderExecutor.execute(UrlClassLoaderExecutor.java:13)
at
org.hibernate.forge.generate.GenerateEntitiesPlugin.doReverseEngineering(GenerateEntitiesPlugin.java:171)
at
org.hibernate.forge.generate.GenerateEntitiesPlugin.generateEntities(GenerateEntitiesPlugin.java:78)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.jboss.forge.shell.command.Execution.perform(Execution.java:160)
at org.jboss.forge.shell.command.fshparser.FSHRuntime.run(FSHRuntime.java:109)
at org.jboss.forge.shell.command.fshparser.FSHRuntime.run(FSHRuntime.java:47)
at org.jboss.forge.shell.ShellImpl$ExecutorThread.run(ShellImpl.java:796)
at org.jboss.forge.shell.ShellImpl.execute(ShellImpl.java:819)
at org.jboss.forge.shell.ShellImpl.doShell(ShellImpl.java:609)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.jboss.weld.bean.proxy.AbstractBeanInstance.invoke(AbstractBeanInstance.java:48)
at org.jboss.weld.bean.proxy.ProxyMethodHandler.invoke(ProxyMethodHandler.java:125)
at
org.jboss.forge.shell.ShellImpl$Proxy$_$$_WeldClientProxy.doShell(ShellImpl$Proxy$_$$_WeldClientProxy.java)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.jboss.weld.util.reflection.SecureReflections$13.work(SecureReflections.java:305)
at
org.jboss.weld.util.reflection.SecureReflectionAccess.run(SecureReflectionAccess.java:54)
at
org.jboss.weld.util.reflection.SecureReflectionAccess.runAsInvocation(SecureReflectionAccess.java:163)
at org.jboss.weld.util.reflection.SecureReflections.invoke(SecureReflections.java:299)
at
org.jboss.weld.introspector.jlr.WeldMethodImpl.invokeOnInstance(WeldMethodImpl.java:188)
at
org.jboss.weld.introspector.ForwardingWeldMethod.invokeOnInstance(ForwardingWeldMethod.java:59)
at
org.jboss.weld.injection.MethodInjectionPoint.invokeOnInstanceWithSpecialValue(MethodInjectionPoint.java:198)
at org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:282)
at org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:265)
at org.jboss.weld.event.ObserverMethodImpl.notify(ObserverMethodImpl.java:234)
at org.jboss.weld.manager.BeanManagerImpl.notifyObservers(BeanManagerImpl.java:635)
at org.jboss.weld.manager.BeanManagerImpl.fireEvent(BeanManagerImpl.java:622)
at org.jboss.weld.manager.BeanManagerImpl.fireEvent(BeanManagerImpl.java:616)
at org.jboss.forge.shell.Bootstrap$1.run(Bootstrap.java:186)
at java.lang.Thread.run(Thread.java:744)
Posted by forums
Original post: https://community.jboss.org/message/856666#856666
10:07 p.m.
Hi Blaine,
This looks like the Hibernate version that is used by the reverse engineering plugin is
not compatible with the Teiid Dialect you are using. The Hibernate Tools version of the
reverse engineering plugin is 3.4.0.CR2 and that is using Hibernate Core 3.5.6-Final.
The simplest solution seems to me to use a Teiid dialect that is compatible with that
version of Hibernate. It seems to me that any Teiid dialect version from 8.1.0 or earlier
would work
(http://grepcode.com/file/repository.jboss.org/nexus/content/repositories/...
(http://grepcode.com/file/repository.jboss.org/nexus/content/repositories/....
Any later version uses Hibernate 4.x.
An alternative but more involved solution would be to rebuild the reverse engineering
plugin using Hibernate Tools 4.0.0.CR1 which will also use Hibernate 4.x.
I hope this helps.
Cheers,
Koen
Posted by forums
Original post: https://community.jboss.org/message/856700#856700
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