Gentlemen, I'm having trouble getting the objs from my client search screen, and playing on the registration screen for editing the same.
My search screen has a button with a
<p:button outcome="/cliente/CadastroCliente.xhtml" icon="ui-incon-pencil" title="Editar" >
<f:param name="cliente" value="#{cliente.id}"/>
My customer registration page, where you will receive the parameter is thus. For I am using omnifaces.
<f:metadata>
<o:viewParam name="cliente" value="#{cadastroClienteBean.cliente}"/>
</f:metadata>
My Repository class:
@SuppressWarnings("unchecked")
public List<Cliente> filtrados(ClienteFilter filtro) {
Session session = manager.unwrap(Session.class);
Criteria criteria = session.createCriteria(Cliente.class);
if (StringUtils.isNotBlank(filtro.getCpf())) {
criteria.add(Restrictions.eq("cpf", filtro.getCpf()));
}
if (StringUtils.isNotBlank(filtro.getNome())) {
criteria.add(Restrictions.ilike("nome", filtro.getNome(), MatchMode.ANYWHERE));
}
return criteria.addOrder(Order.asc("nome")).list();
}
public Cliente porId(Long id) {
return manager.find(Cliente.class, id);
}
}
ClientClientConverter
@FacesConverter(forClass = Cliente.class)
public class ClienteConverter implements Converter{
//@Inject
private Clientes clientes;
public ClienteConverter() {
clientes = CDIServiceLocator.getBean(Clientes.class);
}
@Override
public Object getAsObject(FacesContext context, UIComponent component, String value) {
Cliente retorno = null;
if (value != null) {
Long id = new Long(value);
retorno = clientes.porId(id);
}
return retorno;
}
@Override
public String getAsString(FacesContext context, UIComponent component, Object value) {
if (value != null) {
//Cliente cliente = (Cliente) value;
//return cliente.getId() == null ? null : cliente.getId().toString();
return ((Cliente) value).getId().toString();
}
return "";
}
}
However, when my page is executed, I click the edit button that has to send the values to the registration page, the following error is returned.
mar 01, 2018 9:34:41 AM com.sun.faces.application.view.FaceletViewHandlingStrategy handleRenderException
GRAVE: Error Rendering View[/cliente/CadastroCliente.xhtml]
java.lang.NullPointerException
at com.moto.converter.ClienteConverter.getAsString(ClienteConverter.java:39)
at javax.faces.component.UIViewParameter.getStringValueFromModel(UIViewParameter.java:378)
at javax.faces.component.UIViewParameter.getStringValue(UIViewParameter.java:327)
at javax.faces.component.UIViewParameter.encodeAll(UIViewParameter.java:313)
at javax.faces.component.UIViewRoot.encodeViewParameters(UIViewRoot.java:1655)
at javax.faces.component.UIViewRoot.encodeEnd(UIViewRoot.java:996)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1786)
at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:439)
at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:124)
at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:286)
at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:286)
at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:120)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:594)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:217)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1091)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:673)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1500)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1456)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)
2018-03-01 09:34:41,578 ERROR [com.moto.util.jsf.JsfExceptionHandler] Erro de sistema: null
java.lang.NullPointerException
at com.moto.converter.ClienteConverter.getAsString(ClienteConverter.java:39)
at javax.faces.component.UIViewParameter.getStringValueFromModel(UIViewParameter.java:378)
at javax.faces.component.UIViewParameter.getStringValue(UIViewParameter.java:327)
at javax.faces.component.UIViewParameter.encodeAll(UIViewParameter.java:313)
at javax.faces.component.UIViewRoot.encodeViewParameters(UIViewRoot.java:1655)
at javax.faces.component.UIViewRoot.encodeEnd(UIViewRoot.java:996)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1786)
at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:439)
at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:124)
at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:286)
at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:286)
at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:120)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:594)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:217)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1091)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:673)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1500)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1456)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)
Please help me, I do not know where my error is. I'm running out of options; att.