At first blush, it looks like your query has "person" referenced when it
should have "Person". According to the error message, "Person" is defined,
but not "person". Take a look at your query.
Kevin
On Tue, Jun 24, 2008 at 4:13 PM, get_it_done <[EMAIL PROTECTED]> wrote:
>
> Hello,
> I am using Spring 2.5 and OpenJPA and MySQL. When I try to persist
> an entity, I get the following exception.
>
> 09 base INFO [main] openjpa.Runtime - Starting OpenJPA 1.0.1
> 140 base INFO [main] openjpa.jdbc.JDBC - Using dictionary class
> "org.apache.openjpa.jdbc.sql.MySQLDictionary".
> 687 base INFO [main] openjpa.Enhance - Creating subclass for "[class
> ak.jpa.entities.Person]". This means that your application will be less
> efficient and will consume more memory than it would if you ran the OpenJPA
> enhancer. Additionally, lazy loading will not be available for one-to-one
> and many-to-one persistent attributes in types using field access; they
> will
> be loaded eagerly instead.
> Exception in thread "main" <openjpa-1.0.1-r420667:592145 fatal user error>
> org.apache.openjpa.persistence.ArgumentException: Could not locate metadata
> for the class using alias "person". This could mean that the OpenJPA
> enhancer or load-time weaver was not run on the type whose alias is
> "person". Registered alias mappings: "{person=null, Person=[class
> trial.jpa.entities.Person]}"
> at
>
> org.apache.openjpa.meta.MetaDataRepository.getMetaData(MetaDataRepository.java:362)
> at
>
> org.apache.openjpa.kernel.jpql.JPQLExpressionBuilder.getClassMetaData(JPQLExpressionBuilder.java:169)
> at
>
> org.apache.openjpa.kernel.jpql.JPQLExpressionBuilder.resolveClassMetaData(JPQLExpressionBuilder.java:147)
> at
>
> org.apache.openjpa.kernel.jpql.JPQLExpressionBuilder.getCandidateMetaData(JPQLExpressionBuilder.java:216)
> at
>
> org.apache.openjpa.kernel.jpql.JPQLExpressionBuilder.getCandidateMetaData(JPQLExpressionBuilder.java:186)
> at
>
> org.apache.openjpa.kernel.jpql.JPQLExpressionBuilder.getCandidateType(JPQLExpressionBuilder.java:179)
> at
>
> org.apache.openjpa.kernel.jpql.JPQLExpressionBuilder.access$500(JPQLExpressionBuilder.java:66)
> at
>
> org.apache.openjpa.kernel.jpql.JPQLExpressionBuilder$ParsedJPQL.populate(JPQLExpressionBuilder.java:1678)
> at
> org.apache.openjpa.kernel.jpql.JPQLParser.populate(JPQLParser.java:55)
> at
>
> org.apache.openjpa.kernel.ExpressionStoreQuery.populateFromCompilation(ExpressionStoreQuery.java:148)
> at
> org.apache.openjpa.kernel.QueryImpl.newCompilation(QueryImpl.java:652)
> at
>
> org.apache.openjpa.kernel.QueryImpl.compilationFromCache(QueryImpl.java:633)
> at
>
> org.apache.openjpa.kernel.QueryImpl.compileForCompilation(QueryImpl.java:599)
> at
> org.apache.openjpa.kernel.QueryImpl.compileForExecutor(QueryImpl.java:661)
> at
> org.apache.openjpa.kernel.QueryImpl.getOperation(QueryImpl.java:1487)
> at
>
> org.apache.openjpa.kernel.DelegatingQuery.getOperation(DelegatingQuery.java:123)
> at
> org.apache.openjpa.persistence.QueryImpl.execute(QueryImpl.java:227)
> at
>
> org.apache.openjpa.persistence.QueryImpl.getSingleResult(QueryImpl.java:300)
> at
> ak.jpa.daos.PersonDaoJpaImpl.findPersonById(PersonDaoJpaImpl.java:50)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
>
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at
>
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:585)
> at
>
> org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:301)
> at
>
> org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182)
> at
>
> org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
> at
>
> org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:106)
> at
>
> org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
> at
>
> org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
> at $Proxy9.findPersonById(Unknown Source)
> at
>
> trial.jpa.services.PersonServiceImpl.findPersonById(PersonServiceImpl.java:36)
> at trial.jpa.clients.MysqlClient.main(MysqlClient.java:18)
>
>
> What is "This could mean that the OpenJPA enhancer or load-time weaver was
> not run on the type whose alias is "person". ". I have configured
> SimpleLoadTimeWeaver in springs application context file.
>
> Any thing else I need to configure
> --
> View this message in context:
> http://www.nabble.com/org.apache.openjpa.persistence.ArgumentException%3A-Could-not-locate-metadata-for-the-class-using-alias-%22person%22.-This-could-mean-that-the-OpenJPA-enhancer-or-load-time-weaver-was-not-run-on-the-type-whose-alias-tp18100208p18100208.html
> Sent from the OpenJPA Users mailing list archive at Nabble.com.
>
>
