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alanc
 Post subject: Composite id with map.
PostPosted: Fri Jul 28, 2006 1:16 pm 
Newbie

Joined: Fri Jul 28, 2006 12:13 pm
Posts: 1
I have a hotel object with a composite id of (ctyhocn,locale)

It has a map of images that are the same regardless of locale.

I'm getting an exception thrown when I attempt to retrieve a hotel. Any idea what the issue is?


Hibernate version: 3.1.3

Mapping documents:

Code:

<hibernate-mapping auto-import="true" default-lazy="false">
    <class name="bus.Hotel" table="hotel" mutable="false">
        <cache usage="read-only"/>
        <composite-id name="id" class="bus.compids.CtyhocnLocaleCompId">
            <key-property name="ctyhocn" type="string" column="ctyhocn"/>
            <key-property name="locale" type="string" column="locale"/>
        </composite-id>
        <property name="ctyhocn" type="string" insert="false" update="false" />
        <property name="locale" type="string" insert="false" update="false" />

        .... lots more properties ....

        <map name="images" table="hotel_images">
            <key property-ref="ctyhocn" />
            <map-key column="name" type="string"/>
            <element column="location" type="string"/>
        </map>
    </class>
</hibernate-mapping>



Database:

Code:
mysql> describe hotel;
+-------------------------+-------------+------+-----+---------+-------+
| Field                   | Type        | Null | Key | Default | Extra |
+-------------------------+-------------+------+-----+---------+-------+
| ctyhocn                 | varchar(7)  | NO   | PRI |         |       |
| locale                  | varchar(5)  | NO   | PRI |         |       |
... lots more ...
+-------------------------+-------------+------+-----+---------+-------+


mysql> describe hotel_images;
+----------+--------------+------+-----+---------+-------+
| Field    | Type         | Null | Key | Default | Extra |
+----------+--------------+------+-----+---------+-------+
| ctyhocn  | varchar(7)   | NO   | PRI |         |       |
| name     | varchar(100) | NO   | PRI |         |       |
| location | varchar(255) | NO   |     |         |       |
+----------+--------------+------+-----+---------+-------+



Full stack trace of any exception that occurs:

Code:
java.lang.ClassCastException: java.lang.String
        at org.hibernate.type.ComponentType.toLoggableString(ComponentType.java:329)
        at org.hibernate.pretty.MessageHelper.collectionInfoString(MessageHelper.java:284)
        at org.hibernate.engine.CollectionLoadContext.getLoadingCollection(CollectionLoadContext.java:141)
        at org.hibernate.type.CollectionType.getCollection(CollectionType.java:488)
        at org.hibernate.type.CollectionType.resolveKey(CollectionType.java:341)
        at org.hibernate.type.CollectionType.resolve(CollectionType.java:335)
        at org.hibernate.engine.TwoPhaseLoad.initializeEntity(TwoPhaseLoad.java:116)
        at org.hibernate.loader.Loader.initializeEntitiesAndCollections(Loader.java:842)
        at org.hibernate.loader.Loader.doQuery(Loader.java:717)
        at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:224)
        at org.hibernate.loader.Loader.doList(Loader.java:2145)
        at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2029)
        at org.hibernate.loader.Loader.list(Loader.java:2024)
        at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:375)
        at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:308)
        at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:153)
        at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1106)
        at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)
        at org.springframework.orm.hibernate3.HibernateTemplate$32.doInHibernate(HibernateTemplate.java:879)
        at org.springframework.orm.hibernate3.HibernateTemplate.execute(HibernateTemplate.java:366)
        at org.springframework.orm.hibernate3.HibernateTemplate.findByNamedParam(HibernateTemplate.java:870)
        at company.spring.dao.hibernate.PropertyDao.getByCtyhocn(PropertyDao.java:54)
        at company.spring.dao.hibernate.PropertyDao.getByCtyhoOrCtyhocn(PropertyDao.java:140)
        at company.spring.dao.hibernate.PropertyDao$$FastClassByCGLIB$$bff9130a.invoke(<generated>)
        at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
        at org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:685)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:148)
        at org.springframework.aop.interceptor.SimpleTraceInterceptor.invokeUnderTrace(SimpleTraceInterceptor.java:59)
        at org.springframework.aop.interceptor.AbstractTraceInterceptor.invoke(AbstractTraceInterceptor.java:111)
        at org.springframework.aop.interceptor.DebugInterceptor.invoke(DebugInterceptor.java:61)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:170)
        at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:623)
        at company.spring.dao.hibernate.PropertyDao$$EnhancerByCGLIB$$e353f9a1.getByCtyhoOrCtyhocn(<generated>)
        at compant.pfs.service.impl.PropertyServiceImpl.retrieveProperty(PropertyServiceImpl.java:170)
        at company.pfs.controller.hotel.HotelBaseController.retrieveHotel(HotelBaseController.java:69)
        at company.pfs.controller.hotel.Index.index(Index.java:61)
        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.web.servlet.mvc.multiaction.MultiActionController.invokeNamedMethod(MultiActionController.java:393)
        at org.springframework.web.servlet.mvc.multiaction.MultiActionController.handleRequestInternal(MultiActionController.java:331)
        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:287)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:181)
        at org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:682)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:148)
        at org.springframework.aop.interceptor.SimpleTraceInterceptor.invokeUnderTrace(SimpleTraceInterceptor.java:59)
        at org.springframework.aop.interceptor.AbstractTraceInterceptor.invoke(AbstractTraceInterceptor.java:111)
        at org.springframework.aop.interceptor.DebugInterceptor.invoke(DebugInterceptor.java:61)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:170)
        at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:623)
        at hilton.pfs.controller.hotel.Index$$EnhancerByCGLIB$$6775243c.handleRequestInternal(<generated>)
        at org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:153)
        at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:44)
        at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:723)
        at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:663)
        at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:394)
        at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:348)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
        at org.apache.catalina.valves.FastCommonAccessLogValve.invoke(FastCommonAccessLogValve.java:495)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:868)
        at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:663)
        at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
        at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
        at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
        at java.lang.Thread.run(Thread.java:595)



Name and version of the database you are using: MySQL 5
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