Error in @in EntityManager
have possessions when using the seam, I began a new project using seamProject on jbossDeveloperStudio have a they give that extende of they give generic, and in my controller use this they give with the annotation @ in of the seam see my code
# public abstract class DaoGeneric<T, ID extends Serializable> implements IDaoGeneric<T, ID> {
#
# @In(create=true,value="entityManager")
# private EntityManager entityManager ;
#
# private Class<T> classe;
#
#
# public void salvar(T objeto) {
# try {
# objeto =entityManager.merge(objeto);
# } catch (StaleStateException e) {
# e.printStackTrace();
# }
# catch(ConstraintViolationException e){
# e.printStackTrace();
# }
# catch (HibernateException e) {
#
# e.printStackTrace();
# }
# }
My DAO
# @Name("daoCargo")
# public class DaoCargo extends DaoGeneric<Cargo, Long> implements IdaoCargo {
#
# public DaoCargo(){
# super();
#
# }
my Controller
1. package br.com.lgweb.controller.genericController;
2.
3. /*
4. * To change this template, choose Tools | Templates
5. * and open the template in the editor.
6. */
7.
8.
9. import br.com.lgweb.controller.interfaces.CargoBean;
10. import br.com.lgweb.dao.genericDao.IDaoGeneric;
11. import br.com.lgweb.geral.entity.Cargo;
12. import br.com.lgweb.interfaces.dao.IdaoCargo;
13. import br.com.lgweb.jpaDao.DaoCargo;
14.
15. import java.io.Serializable;
16. import java.util.List;
17. import javax.ejb.Remove;
18. import javax.ejb.Stateful;
19.
20. import javax.persistence.EntityManager;
21. import javax.persistence.PersistenceContext;
22. import org.jboss.seam.ScopeType;
23. import org.jboss.seam.annotations.Begin;
24. import org.jboss.seam.annotations.Destroy;
25. import org.jboss.seam.annotations.End;
26. import org.jboss.seam.annotations.Factory;
27. import org.jboss.seam.annotations.In;
28. import org.jboss.seam.annotations.Name;
29. import org.jboss.seam.annotations.Out;
30. import org.jboss.seam.annotations.Scope;
31. import org.jboss.seam.annotations.datamodel.DataModel;
32. import org.jboss.seam.annotations.datamodel.DataModelSelection;
33. import org.jboss.seam.faces.FacesMessages;
34.
35.
36. /**
37. *
38. * @author godoy
39. */
40.
41. @Name("controlCargo")
42. @Scope(ScopeType.SESSION)
43. public class ControlCargoBean implements CargoBean, Serializable {
44.
45.
46. @In(create = true)
47. private transient FacesMessages facesMessages;
48.
49. @In
50. private Cargo cargo;
51.
52. @DataModel
53. @Out(required = false)
54. private List<Cargo> cargos;
55.
56. @In(create=true,value="daoCargo")
57. private DaoCargo daoCargo ;
58.
59. @DataModelSelection
60. @Out(required=false,scope=ScopeType.SESSION)
61. private Cargo selectedCargo;
62.
63. public String excluir() {
64. daoCargo.excluir(cargo);
65. return "sucessDelete";
66. }
67.
68. @Factory("cargos")
69. public void listarTodos() {
70. cargos = daoCargo.listarTodos();
71.
72. }
73.
74.
75. public String editar() {
76. cargo = daoCargo.findObjeto(cargo.getId());
77. if (cargo != null) {
78. return "editCargo";
79. } else {
80. facesMessages.addFromResourceBundle("entityNotFound");
81. }
82. return null;
83. }
84.
85.
86. public String salvar() {
87. daoCargo.salvar(cargo);
88. return "cargoPersist";
89. }
90.
91. @Destroy
92. @Remove
93. public void destroy() {
94. }
95.
96. public Cargo getCargo() {
97. return cargo;
98. }
99.
100. public void setCargo(Cargo cargo) {
101. this.cargo = cargo;
102. }
103. }
The Error
# 22:05:00,640 ERROR [application] org.jboss.seam.RequiredException: @In attribute requires non-null value: daoCargo.entityManager
# javax.faces.el.EvaluationException: org.jboss.seam.RequiredException: @In attribute requires non-null value: daoCargo.entityManager
# at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:102)
# at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102)
# at javax.faces.component.UICommand.broadcast(UICommand.java:387)
# at org.ajax4jsf.component.AjaxViewRoot.processEvents(AjaxViewRoot.java:321)
# at org.ajax4jsf.component.AjaxViewRoot.broadcastEvents(AjaxViewRoot.java:296)
# at org.ajax4jsf.component.AjaxViewRoot.processPhase(AjaxViewRoot.java:253)
# at org.ajax4jsf.component.AjaxViewRoot.processApplication(AjaxViewRoot.java:466)
# at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:82)
# at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100)
# at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
# at javax.faces.webapp.FacesServlet.service(FacesServlet.java:265)
# at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
# at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
# at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83)
# at org.jboss.seam.web.IdentityFilter.doFilter(IdentityFilter.java:40)
# at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
# at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:90)
# at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
# at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64)
# at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
# at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45)
# at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
# at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:178)
# at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:290)
# at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:368)
# at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:495)
# at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:56)
# at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
# at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:60)
# at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
# at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158)
# at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
# at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
# at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
# at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
# at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
# at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
# at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:173)
# at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:182)
# at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433)
# at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
# at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
# at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
# at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
# at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
# at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:241)
# at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
# at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
# at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
# at java.lang.Thread.run(Unknown Source)
# Caused by: org.jboss.seam.RequiredException: @In attribute requires non-null value: daoCargo.entityManager
Excuse, I am using a language translator
What cause this mistake type? any help and well arrival. Thank you.
