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Re: HHH015011: Unable to locate static metamodel field
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created by <a href="https://community.jboss.org/people/marianokm">Mariano Kocalka Machala</a> in <i>JBoss AS 7 Development</i> - <a href="https://community.jboss.org/message/733432#733432">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi, Scott</p><p>These are the issues we are facing with criteria/metamodel APIs and Jboss-as-7.1.0</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>As you can see from the attached example (zip file), we are extending an @Entity (TaxAgent) from a @MappedSuperclass (Agent)</p><p>Agent has an @Embedded attribute (document), and this generates two errors:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>1. When deploying there "Unable to locate static metamodel field" errors. Note that this errors act at two levels, first the document field cannot be found in TaxAgent_ but also, the documentType field cannot be found inside our embeddable, Document_.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>2. When trying to create a path expression from the root object (taxAgent) to TaxAgent_.document an exception is thrown (which is below).</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>3. Also, we've found this:</p><p><a class="jive-link-external-small" href="https://hibernate.onjira.com/browse/HHH-5024" target="_blank">https://hibernate.onjira.com/browse/HHH-5024</a><span> (which is similar but a different hierarchy @Embeddable extending a @MappedSuperclass)</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>4. At "deploy" time the logger error message as below:</p><p>17:15:01,452 ERROR [MetadataContext] Unable to locate static metamodel field : agents.TaxAgent_#document</p><p>17:15:01,457 ERROR [MetadataContext] Unable to locate static metamodel field : stuff.Document_#documentType</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>5. At query time:</p><p>public final List<TaxAgent> getList(final String description)</p><p>{</p><p>    List<TaxAgent> taxAgentList = null;</p><p>    try</p><p>    {</p><p>        final CriteriaBuilder cb = em.getCriteriaBuilder();</p><p>        final CriteriaQuery<TaxAgent> cq = cb.createQuery(TaxAgent.class);</p><p>        final Root<TaxAgent> taxAgent = cq.from(TaxAgent.class);</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>        // <- This is the exception line: at service.manager.ejb.TaxAgentManagerEJB.getList(TaxAgentManagerEJB.java:61) [:]</p><p>        final Path<Document> document = taxAgent.get(TaxAgent_.document); </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>        //    final Path<Document> document = taxAgent.get("document"); // <- This works (just in case you were asking)</p><p>        final Path<String> documentNumber = document.get(Document_.documentNumber);</p><p>        final StringBuilder sb = new StringBuilder();</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>        sb.append("%").append(description.trim().replaceAll(" ", "%")).append("%");</p><p>        cq.where(cb.like(cb.upper(cb.trim(documentNumber)), sb.toString().toUpperCase()));</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>        // Gets data.</p><p>        final TypedQuery<T> tq = em.createQuery(cq);</p><p>        taxAgentList = tq.getResultList();</p><p>    }</p><p>    catch (Throwable t)</p><p>    {</p><p>        throw new EJBException(t.getMessage());</p><p>    }</p><p>    return taxAgentList;</p><p>}</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>6. Query execution:</p><p>2011-11-11 11:24:49,330 ERROR [com.ebizlink.pandora2.web.component.BaseComponent] (http-127.0.0.1-8080-1) null: javax.ejb.EJBException</p><p>    at service.manager.ejb.TaxAgentManagerEJB.getList(TaxAgentManagerEJB.java:61) [:]</p><p>    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [:1.6.0_20]</p><p>    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [:1.6.0_20]</p><p>    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [:1.6.0_20]</p><p>    at java.lang.reflect.Method.invoke(Method.java:616) [:1.6.0_20]</p><p>    at org.jboss.aop.joinpoint.MethodInvocation.invokeTarget(MethodInvocation.java:122) [jboss-aop.jar:2.2.1.GA]</p><p>    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:111) [jboss-aop.jar:2.2.1.GA]</p><p>    at org.jboss.ejb3.interceptors.container.ContainerMethodInvocationWrapper.invokeNext(ContainerMethodInvocationWrapper.java:72) [:1.1.3]</p><p>    at org.jboss.ejb3.interceptors.aop.InterceptorSequencer.invoke(InterceptorSequencer.java:76) [:1.1.3]</p><p>    at org.jboss.ejb3.interceptors.aop.InterceptorSequencer.aroundInvoke(InterceptorSequencer.java:62) [:1.1.3]</p><p>    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [:1.6.0_20]</p><p>    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [:1.6.0_20]</p><p>    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [:1.6.0_20]</p><p>    at java.lang.reflect.Method.invoke(Method.java:616) [:1.6.0_20]</p><p>    at org.jboss.aop.advice.PerJoinpointAdvice.invoke(PerJoinpointAdvice.java:174) [jboss-aop.jar:2.2.1.GA]</p><p>    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.1.GA]</p><p>    at org.jboss.ejb3.interceptors.aop.InvocationContextInterceptor.fillMethod(InvocationContextInterceptor.java:74) [:1.1.3]</p><p>    at org.jboss.aop.advice.org.jboss.ejb3.interceptors.aop.InvocationContextInterceptor_z_fillMethod_11985797.invoke(InvocationContextInterceptor_z_fillMethod_11985797.java)</p><p>    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.1.GA]</p><p>    at org.jboss.ejb3.interceptors.aop.InvocationContextInterceptor.setup(InvocationContextInterceptor.java:90) [:1.1.3]</p><p>    at org.jboss.aop.advice.org.jboss.ejb3.interceptors.aop.InvocationContextInterceptor_z_setup_11985797.invoke(InvocationContextInterceptor_z_setup_11985797.java)</p><p>    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.1.GA]</p><p>    at org.jboss.ejb3.async.impl.interceptor.AsynchronousServerInterceptor.invoke(AsynchronousServerInterceptor.java:128) [:1.7.17]</p><p>    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.1.GA]</p><p>    at org.jboss.ejb3.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:62) [:1.7.17]</p><p>    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.1.GA]</p><p>    at org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:56) [:1.7.17]</p><p>    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.1.GA]</p><p>    at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:47) [:1.7.17]</p><p>    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.1.GA]</p><p>    at org.jboss.ejb3.tx.NullInterceptor.invoke(NullInterceptor.java:42) [:1.0.3]</p><p>    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.1.GA]</p><p>    at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:68) [:1.7.17]</p><p>    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.1.GA]</p><p>    at org.jboss.ejb3.core.context.SessionInvocationContextAdapter.proceed(SessionInvocationContextAdapter.java:95) [:1.7.17]</p><p>    at org.jboss.ejb3.tx2.impl.CMTTxInterceptor.invokeInOurTx(CMTTxInterceptor.java:247) [:0.0.1]</p><p>    at org.jboss.ejb3.tx2.impl.CMTTxInterceptor.required(CMTTxInterceptor.java:349) [:0.0.1]</p><p>    at org.jboss.ejb3.tx2.impl.CMTTxInterceptor.invoke(CMTTxInterceptor.java:209) [:0.0.1]</p><p>    at org.jboss.ejb3.tx2.aop.CMTTxInterceptorWrapper.invoke(CMTTxInterceptorWrapper.java:52) [:0.0.1]</p><p>    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.1.GA]</p><p>    at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76) [:1.0.0.GA]</p><p>    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.1.GA]</p><p>    at org.jboss.ejb3.tx.NullInterceptor.invoke(NullInterceptor.java:42) [:1.0.3]</p><p>    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.1.GA]</p><p>    at org.jboss.ejb3.security.Ejb3AuthenticationInterceptorv2.invoke(Ejb3AuthenticationInterceptorv2.java:182) [:1.7.17]</p><p>    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.1.GA]</p><p>    at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:41) [:1.7.17]</p><p>    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.1.GA]</p><p>    at org.jboss.ejb3.BlockContainerShutdownInterceptor.invoke(BlockContainerShutdownInterceptor.java:67) [:1.7.17]</p><p>    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.1.GA]</p><p>    at org.jboss.ejb3.core.context.CurrentInvocationContextInterceptor.invoke(CurrentInvocationContextInterceptor.java:47) [:1.7.17]</p><p>    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.1.GA]</p><p>    at org.jboss.aspects.currentinvocation.CurrentInvocationInterceptor.invoke(CurrentInvocationInterceptor.java:67) [:1.0.1]</p><p>    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.1.GA]</p><p>    at org.jboss.ejb3.interceptor.EJB3TCCLInterceptor.invoke(EJB3TCCLInterceptor.java:86) [:1.7.17]</p><p>    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.1.GA]</p><p>    at org.jboss.ejb3.session.SessionSpecContainer.invoke(SessionSpecContainer.java:323) [:1.7.17]</p><p>    at org.jboss.ejb3.session.SessionSpecContainer.invoke(SessionSpecContainer.java:380) [:1.7.17]</p><p>    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [:1.6.0_20]</p><p>    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [:1.6.0_20]</p><p>    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [:1.6.0_20]</p><p>    at java.lang.reflect.Method.invoke(Method.java:616) [:1.6.0_20]</p><p>    at org.jboss.ejb3.proxy.impl.handler.session.SessionLocalProxyInvocationHandler$LocalContainerInvocation.invokeTarget(SessionLocalProxyInvocationHandler.java:184) [:1.0.11]</p><p>    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:111) [jboss-aop.jar:2.2.1.GA]</p><p>    at org.jboss.ejb3.async.impl.interceptor.AsynchronousClientInterceptor.invoke(AsynchronousClientInterceptor.java:143) [:1.7.17]</p><p>    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.1.GA]</p><p>    at org.jboss.ejb3.proxy.impl.handler.session.SessionLocalProxyInvocationHandler$LocalInvokableContextHandler.invoke(SessionLocalProxyInvocationHandler.java:159) [:1.0.11]</p><p>    at $Proxy288.invoke(Unknown Source)    at org.jboss.ejb3.proxy.impl.handler.session.SessionProxyInvocationHandlerBase.invoke(SessionProxyInvocationHandlerBase.java:185) [:1.0.11]</p><p>    at $Proxy274.getList(Unknown Source)    at com.ebizlink.pandora2.web.component.form.BaseAutoCompleteComponent.getList(BaseAutoCompleteComponent.java:73) [:]</p><p>    at com.ebizlink.pandora2.web.component.form.BaseAutoCompleteComponent.complete(BaseAutoCompleteComponent.java:59) [:]</p><p>    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [:1.6.0_20]</p><p>    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [:1.6.0_20]</p><p>    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [:1.6.0_20]</p><p>    at java.lang.reflect.Method.invoke(Method.java:616) [:1.6.0_20]</p><p>    at org.apache.el.parser.AstValue.invoke(AstValue.java:196) [:6.0.0.Final]</p><p>    at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:276) [:6.0.0.Final]</p><p>    at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:102) [:2.0.3-]</p><p>    at org.primefaces.component.autocomplete.AutoCompleteRenderer.encodeResults(AutoCompleteRenderer.java:78) [:]</p><p>    at org.primefaces.component.autocomplete.AutoCompleteRenderer.encodeEnd(AutoCompleteRenderer.java:60) [:]</p><p>    at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:879) [:2.0.3-]</p><p>    at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1650) [:2.0.3-]</p><p>    at com.sun.faces.context.PartialViewContextImpl$PhaseAwareVisitCallback.visit(PartialViewContextImpl.java:479) [:2.0.3-]</p><p>    at com.sun.faces.component.visit.PartialVisitContext.invokeVisitCallback(PartialVisitContext.java:175) [:2.0.3-]</p><p>    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1476) [:2.0.3-]</p><p>    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1487) [:2.0.3-]</p><p>    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1487) [:2.0.3-]</p><p>    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1487) [:2.0.3-]</p><p>    at javax.faces.component.UIForm.visitTree(UIForm.java:331) [:2.0.3-]</p><p>    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1487) [:2.0.3-]</p><p>    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1487) [:2.0.3-]</p><p>    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1487) [:2.0.3-]</p><p>    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1487) [:2.0.3-]</p><p>    at com.sun.faces.context.PartialViewContextImpl.processComponents(PartialViewContextImpl.java:361) [:2.0.3-]</p><p>    at com.sun.faces.context.PartialViewContextImpl.processPartial(PartialViewContextImpl.java:282) [:2.0.3-]</p><p>    at javax.faces.context.PartialViewContextWrapper.processPartial(PartialViewContextWrapper.java:179) [:2.0.3-]</p><p>    at javax.faces.component.UIViewRoot.encodeChildren(UIViewRoot.java:968) [:2.0.3-]</p><p>    at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1643) [:2.0.3-]</p><p>    at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:378) [:2.0.3-]</p><p>    at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:127) [:2.0.3-]</p><p>    at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:117) [:2.0.3-]</p><p>    at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:97) [:2.0.3-]</p><p>    at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:135) [:2.0.3-]</p><p>    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:309) [:2.0.3-]</p><p>    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:324) [:6.0.0.Final]</p><p>    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:242) [:6.0.0.Final]</p><p>    at com.ebizlink.adonis.common.ui.filter.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:31) [:]</p><p>    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:274) [:6.0.0.Final]</p><p>    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:242) [:6.0.0.Final]</p><p>    at org.primefaces.webapp.filter.FileUploadFilter.doFilter(FileUploadFilter.java:79) [:]</p><p>    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:274) [:6.0.0.Final]</p><p>    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:242) [:6.0.0.Final]</p><p>    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275) [:6.0.0.Final]</p><p>    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) [:6.0.0.Final]</p><p>    at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:181) [:6.0.0.Final]</p><p>    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:593) [:6.0.0.Final]</p><p>    at org.jboss.modcluster.catalina.CatalinaContext$RequestListenerValve.event(CatalinaContext.java:285) [:1.1.0.Final]</p><p>    at org.jboss.modcluster.catalina.CatalinaContext$RequestListenerValve.invoke(CatalinaContext.java:261) [:1.1.0.Final]</p><p>    at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:88) [:6.0.0.Final]</p><p>    at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:100) [:6.0.0.Final]</p><p>    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) [:6.0.0.Final]</p><p>    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [:6.0.0.Final]</p><p>    at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158) [:6.0.0.Final]</p><p>    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [:6.0.0.Final]</p><p>    at org.jboss.web.tomcat.service.request.ActiveRequestResponseCacheValve.invoke(ActiveRequestResponseCacheValve.java:53) [:6.0.0.Final]</p><p>    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:362) [:6.0.0.Final]</p><p>    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877) [:6.0.0.Final]</p><p>    at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:654) [:6.0.0.Final]</p><p>    at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:951) [:6.0.0.Final]</p><p>    at java.lang.Thread.run(Thread.java:636) [:1.6.0_20]</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>2011-11-11 11:24:49,369 SEVERE [javax.enterprise.resource.webcontainer.jsf.context] (http-127.0.0.1-8080-1) java.lang.NullPointerException</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>===============================================================================</p><p>sample code</p><p>===============================================================================</p><p>package agents;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>import java.io.Serializable;</p><p>import javax.persistence.Embedded;</p><p>import javax.persistence.GeneratedValue;</p><p>import javax.persistence.GenerationType;</p><p>import javax.persistence.Id;</p><p>import javax.persistence.MappedSuperclass;</p><p>import javax.persistence.SequenceGenerator;</p><p>import stuff.Document;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>@MappedSuperclass</p><p>@SuppressWarnings("serial")</p><p>public abstract class Agent implements Serializable</p><p>{</p><p>    @Id</p><p>    @SequenceGenerator(name = "id", sequenceName = "agent_seq")</p><p>    @GeneratedValue(strategy = GenerationType.AUTO, generator = "id")</p><p>    private Long agentID;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    @Embedded</p><p>    private Document document;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    /**</p><p>     */</p><p>    protected Agent(Document document)</p><p>    {</p><p>        this.agentID = 0l;</p><p>        this.document = document;</p><p>    }</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    // getters, setters...</p><p>}</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>===============================================================================</p><p>sample code</p><p>===============================================================================</p><p>package agents;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>import javax.persistence.Entity;</p><p>import javax.persistence.Table;</p><p>import javax.persistence.UniqueConstraint;</p><p>import stuff.Document;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>@Entity</p><p>@Table(name = "taxagent", uniqueConstraints = @UniqueConstraint(columnNames = {"documentTypeID", "documentNumber"}))</p><p>@SuppressWarnings("serial")</p><p>public final class TaxAgent extends Agent</p><p>{</p><p>    /**</p><p>     */</p><p>    protected TaxAgent(Document document)</p><p>    {</p><p>        super(document);</p><p>    }</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    /**</p><p>     */</p><p>    public TaxAgent()</p><p>    {</p><p>        this(null);</p><p>    }</p><p>}</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>===============================================================================</p><p>sample code</p><p>===============================================================================</p><p>package stuff;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>import java.io.Serializable;</p><p>import javax.persistence.Column;</p><p>import javax.persistence.Embeddable;</p><p>import javax.persistence.FetchType;</p><p>import javax.persistence.JoinColumn;</p><p>import javax.persistence.ManyToOne;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>@Embeddable</p><p>@SuppressWarnings("serial")</p><p>public final class Document implements Serializable</p><p>{</p><p>    @ManyToOne(fetch = FetchType.EAGER)</p><p>    @JoinColumn(name = "documentTypeID")</p><p>    private DocumentType documentType;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    @Column(length = 20)</p><p>    private String documentNumber;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    /**</p><p>     */</p><p>    public Document(DocumentType documentType, String documentNumber)</p><p>    {</p><p>        this.documentType = documentType;</p><p>        this.documentNumber = documentNumber;</p><p>    }</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    /**</p><p>     */</p><p>    public Document()</p><p>    {</p><p>        this(null, "");</p><p>    }</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    // getters, setters...</p><p>}</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>===============================================================================</p><p>sample code</p><p>===============================================================================</p><p>package stuff;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>import javax.persistence.Cacheable;</p><p>import javax.persistence.Column;</p><p>import javax.persistence.Entity;</p><p>import javax.persistence.GeneratedValue;</p><p>import javax.persistence.GenerationType;</p><p>import javax.persistence.Id;</p><p>import javax.persistence.SequenceGenerator;</p><p>import javax.persistence.Table;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>@Entity</p><p>@Table(name = "documenttype")</p><p>@Cacheable(value = true)</p><p>@SuppressWarnings("serial")</p><p>public final class DocumentType implements Serializable</p><p>{</p><p>    @Id</p><p>    @SequenceGenerator(name = "id", sequenceName = "documenttype_seq")</p><p>    @GeneratedValue(strategy = GenerationType.AUTO, generator = "id")</p><p>    private Long documentTypeID;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    @Column(length = 50, unique = true)</p><p>    private String description;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    /**</p><p>     */</p><p>    public DocumentType(String description)</p><p>    {</p><p>        this.documentTypeID = 0l;</p><p>        this.description = description;</p><p>    }</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    /**</p><p>     */</p><p>    public DocumentType()</p><p>    {</p><p>        this("");</p><p>    }</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    // getters, setters...</p><p>}</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>===============================================================================</p><p>sample code</p><p>===============================================================================</p><p>package agents;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>import stuff.Document;</p><p>import javax.persistence.metamodel.SingularAttribute;</p><p>import javax.persistence.metamodel.StaticMetamodel;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>@StaticMetamodel(Agent.class)</p><p>public abstract class Agent_ {</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    public static volatile SingularAttribute<Agent, Document> document;</p><p>    public static volatile SingularAttribute<Agent, Long> agentID;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>}</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>===============================================================================</p><p>sample code</p><p>===============================================================================</p><p>package agents;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>import javax.persistence.metamodel.ListAttribute;</p><p>import javax.persistence.metamodel.SingularAttribute;</p><p>import javax.persistence.metamodel.StaticMetamodel;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>@StaticMetamodel(TaxAgent.class)</p><p>public abstract class TaxAgent_ extends agents.Agent_ {</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>}</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>===============================================================================</p><p>sample code</p><p>===============================================================================</p><p>package stuff;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>import javax.persistence.metamodel.SingularAttribute;</p><p>import javax.persistence.metamodel.StaticMetamodel;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>@StaticMetamodel(Document.class)</p><p>public abstract class Document_ {</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    public static volatile SingularAttribute<Document, DocumentType> documentType;</p><p>    public static volatile SingularAttribute<Document, String> documentNumber;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>}</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>===============================================================================</p><p>sample code</p><p>===============================================================================</p><p>package stuff;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>import javax.persistence.metamodel.SingularAttribute;</p><p>import javax.persistence.metamodel.StaticMetamodel;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>@StaticMetamodel(DocumentType.class)</p><p>public abstract class DocumentType_ {</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    public static volatile SingularAttribute<DocumentType, String> description;</p><p>    public static volatile SingularAttribute<DocumentType, Long> documentTypeID;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>}</p></div>
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