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Vaadin Forum5. Discussion in other languagesDiscusión en español (Discussion in Spanish)

Error al cargar bean en un grid

jorge marquez
7 years ago Jan 07, 2016 8:21pm

tengo el siguiente problema
estoy trabajando con hibernate y vaadin por hibernate traigo unos beans anidados(usuer y company)
el cual corresponde que un user esta asociado a una empresa 
esta informacion necsito cargarla en un grid (ver imagen adjunta).

necesito que en la columna company, en vez de imprimirme el .getClass(), necesito  que me imprima el nombre de la empresa.

buscando encontre que me servia este metodo:

ListaUser.addNestedContainerProperty("company.comName");        
        userList.setContainerDataSource(ListaUser);

pero al implementar esto me aparece el siguiente error:

java.lang.IllegalStateException: Found at least one column in Grid that does not exist in the given container: company.comName with the header "Com Name"
    at com.vaadin.ui.Grid.internalSetContainerDataSource(Grid.java:4089)
    at com.vaadin.ui.Grid.setContainerDataSource(Grid.java:3991)
    at com.ultragps.sentinel.adminuser.AdminUser.refreshContacts(AdminUser.java:173)
    at com.ultragps.sentinel.adminuser.AdminUser.refreshContacts(AdminUser.java:169)
    at com.ultragps.sentinel.adminuser.AdminUser.configureComponents(AdminUser.java:143)
    at com.ultragps.sentinel.adminuser.AdminUser.<init>(AdminUser.java:53)
    at com.ultragps.sentinel.ui.SentinelUI.init(SentinelUI.java:58)
    at com.vaadin.ui.UI.doInit(UI.java:675)
    at com.vaadin.server.communication.UIInitHandler.getBrowserDetailsUI(UIInitHandler.java:214)
    at com.vaadin.server.communication.UIInitHandler.synchronizedHandleRequest(UIInitHandler.java:74)
    at com.vaadin.server.SynchronizedRequestHandler.handleRequest(SynchronizedRequestHandler.java:41)
    at com.vaadin.server.VaadinService.handleRequest(VaadinService.java:1408)
    at com.vaadin.server.VaadinServlet.service(VaadinServlet.java:351)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:956)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:423)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1079)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:625)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:318)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Unknown Source)

necesito ayuda  por favor

 

jorge marquez
7 years ago Jan 18, 2016 4:09pm

bueno he solucionado el problema implementando los metodos hascode() y equals()  en el bean asociado

public int hashCode() {
        // TODO Auto-generated method stub
        HashCodeBuilder hcb = new HashCodeBuilder();
        hcb.append(comCreatedDate);
        hcb.append(comLatitude);
        hcb.append(comLongitude);
        hcb.append(comName);
        hcb.append(comOwnerCompanyId);
        hcb.append(comState);
    
        return hcb.toHashCode();
    }
    @Override
    public boolean equals(Object obj) {
        // TODO Auto-generated method stub
        if(this==obj)
            return true;
        if(!(obj instanceof Company))
            return false;
        Company that = (Company)obj;
        EqualsBuilder eb = new EqualsBuilder();
        eb.append(comLatitude, that.comLatitude);
        eb.append(comLongitude, that.comLongitude);
        eb.append(comState, that.comState);
        eb.append(comCreatedDate, that.comCreatedDate);
        eb.append(comName, that.comName);
        eb.append(comOwnerCompanyId, that.comOwnerCompanyId);

        return eb.isEquals();
    }
+2