rich:ListShuttle issue (has invalid value expression)

[shivaji.byrapaneni]

Hi

i have used rich:Listshuttle for my project and i tried with all impementations correctly but im still getting this error

"Component nominationSystemHome:approveLS has invalid value expression com.vo.ApproveVO@262d5750"

please note im using richafaces 3.3.1 GA version of richfaces

and my code is like this

JSP

 <rich:listShuttle binding="#{approveCoursesBean.approveLS}"
 sourceValue="#{approveCoursesBean.nominatedList}"
 targetValue="#{approveCoursesBean.approvedList}" var="people"
 sourceCaptionLabel="Nominated people"
 targetCaptionLabel="Approved people" id="approveLS"
 converter="approveCoursesConverter">
 <rich:column width="18">
 <h:graphicImage value="#{people.iconURI}" width="25px" height="25px" />
 </rich:column>
 <rich:column>
 <h:outputText value="#{people.userId}" />
 </rich:column>
 <rich:column>
 <h:outputText value="#{people.userName}" />
 </rich:column>
 </rich:listShuttle>

converter im using is this

package com.converter;

import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.convert.Converter;

import com.vo.ApproveVO;

public class ApproveCoursesConverter implements Converter {
 @Override
 public Object getAsObject(FacesContext context, UIComponent component,
 String value) {
 String[] tokens = value.split(":");
 return new ApproveVO(tokens[0], Long.parseLong(tokens[1]), tokens[2],
 Long.parseLong(tokens[3]));
 }

 @Override
 public String getAsString(FacesContext context, UIComponent component,
 Object value) {
 ApproveVO approveVO = (ApproveVO) value;
 return approveVO.getIconURI() + ":" + approveVO.getUserId() + ":"
 + approveVO.getUserName() + ":" + approveVO.getCourseId();
 }

}

my VO is having this

package com.vo;

import java.io.Serializable;

public class ApproveVO implements Serializable {

 private static final long serialVersionUID = 567670287797403100L;
 private String iconURI;
 private Long userId;
 private String userName;
 private Long courseId ;

 public long getCourseId() {
 return courseId;
 }

 public void setCourseId(long courseId) {
 this.courseId = courseId;
 }

 public ApproveVO(String iconURI, Long userId, String userName,Long courseId) {
 this.iconURI = iconURI;
 this.userId = userId;
 this.userName = userName;
 this.courseId = courseId;
 }

 public String getIconURI() {
 return iconURI;
 }

 public void setIconURI(String iconURI) {
 this.iconURI = iconURI;
 }

 public Long getUserId() {
 return userId;
 }

 public void setUserId(Long userId) {
 this.userId = userId;
 }

 public String getUserName() {
 return userName;
 }

 public void setUserName(String userName) {
 this.userName = userName;
 }

 @Override
 public boolean equals(Object obj) {
 if (this == obj)
 return true;
 if ((obj == null) || (obj.getClass() != this.getClass()))
 return false;
 ApproveVO approveVO = (ApproveVO) obj;
 if (approveVO.iconURI.equals(this.iconURI)
 && approveVO.userName.equals(this.userName)
 && approveVO.userId == this.userId && approveVO.courseId == this.courseId)
 return true;

 return false;
 }

 @Override
 public int hashCode() {
 int hash = super.hashCode();
 hash = 7 * hash;
 hash = 9 * hash
 + (null == this.userName ? 0 : this.userName.hashCode());
 hash = 11 * hash + (null == this.userId ? 0 : this.userId.hashCode());
 hash = 31 * hash + (null == this.courseId ? 0 : this.courseId.hashCode());
 return hash;
 }

}

my backing bean is this

package com.managedbeans;

import java.util.ArrayList;

import javax.ejb.EJB;
import javax.faces.event.ActionEvent;
import javax.faces.model.SelectItem;

import org.richfaces.component.html.HtmlListShuttle;

import com.constants.NominationConstants;
import com.entities.CourseDetailsEO;
import com.entities.UserDetailsEO;
import com.logger.NominationLogger;
import com.services.local.CoursesInformationServiceLocal;
import com.services.local.NominationInformationServiceLocal;
import com.util.NominationUtil;
import com.vo.ApproveVO;

public class ApproveCoursesBean extends NominationBaseBean {
 private final String className = this.getClass().toString();
 @EJB(mappedName = NominationConstants.COURSEINFOSERVICE_LOCAL)
 private CoursesInformationServiceLocal coursesInformationService;
 @EJB(mappedName = NominationConstants.NOMINATIONINFOSERVICE_LOCAL)
 private NominationInformationServiceLocal nominationInformationService;
 private String courseName;
 private ArrayList<ApproveVO> nominatedList = new ArrayList<ApproveVO>();
 private ArrayList<ApproveVO> approvedList = new ArrayList<ApproveVO>();
 private HtmlListShuttle approveLS = new HtmlListShuttle();

 public HtmlListShuttle getApproveLS() {
 return approveLS;
 }

 public void setApproveLS(HtmlListShuttle approveLS) {
 this.approveLS = approveLS;
 }

 public ArrayList<ApproveVO> getNominatedList() {
 return nominatedList;
 }

 public void setNominatedList(ArrayList<ApproveVO> nominatedList) {
 this.nominatedList = nominatedList;
 }

 public String getCourseName() {
 return courseName;
 }

 public void setCourseName(String courseName) {
 this.courseName = courseName;
 }

 public ArrayList<ApproveVO> getApprovedList() {
 return approvedList;
 }

 public void setApprovedList(ArrayList<ApproveVO> approvedList) {
 this.approvedList = approvedList;
 }

 public String populateCourseListToApprove() {
 final String methodName = "populateCourseListToApprove";
 NominationLogger.logMethodEntry(className, methodName);
 ArrayList<CourseDetailsEO> courseList = getNominationSessionBean()
 .getCoursesList();
 getNominationSessionBean().setCourseNames(
 new SelectItem[courseList.size()]);
 CourseDetailsEO courseDetailsEO = null;
 for (int a = 0; a < courseList.size(); a++) {
 courseDetailsEO = courseList.get(a);
 getNominationSessionBean().getCourseNames()[a] = new SelectItem(
 courseDetailsEO.getCourseName());
 }
 NominationLogger.logMethodExit(className, methodName);
 return null;
 }

 public String populateNominationListBasedOnCourseSelected() {
 final String methodName = "populateNominationListBasedOnCourseSelected";
 NominationLogger.logMethodEntry(className, methodName);
 NominationLogger.info(this.courseName);
 ArrayList<UserDetailsEO> usersList = coursesInformationService
 .getNominatedUserForCourse(this.courseName);
 approveLS = new HtmlListShuttle();
 nominatedList = new ArrayList<ApproveVO>();
 approvedList = new ArrayList<ApproveVO>();
 ApproveVO approveVO = null;
 for (UserDetailsEO userDetailsEO : usersList) {
 approveVO = new ApproveVO(NominationConstants.NOMINATED_USER_ICON,
 userDetailsEO.getUserId(), userDetailsEO.getUserName(),
 userDetailsEO.getCourseId());
 nominatedList.add(approveVO);
 }
 NominationLogger.logMethodExit(className, methodName);
 return null;
 }

 public String confirmNomination(){
 final String methodName = "confirmNomination";
 NominationLogger.logMethodEntry(className, methodName);
 try{
 nominationInformationService.confirmNomination(approvedList);
 }catch(Exception e){
 e.printStackTrace();
 error(NominationUtil.getProperty(NominationConstants.UNEXPECTED_ERROR_MSG));
 }
 info(NominationUtil.getProperty(NominationConstants.NOMINATION_APPROVED_MSG));
 NominationLogger.logMethodExit(className, methodName);
 return null;
 }
}

i had faces similar problem earlier and solved that through correct implementaion of has code method and adding appropriate converter

pleas help
many thanks in advance...

[shivaji.byrapaneni]

i even tracked using phasetracker and can see the process getting failed in APPLY_REQUEST_VALUES phase

[panky_p]

As far as I know the value is not getting converted to listShuttle, so you might have to check your converter.

[shivaji.byrapaneni]

i used debug to see the coverter call.

i can clearly see that getting triggered.

[shivaji.byrapaneni]

could any body help me on this please.

[ilya_shaikovsky]

please not only check that converter called but debug if the values returned by methods are the same for same objects. Also the problem could be in equals and hashCode.

You could download the demosite code and check working sample there.

[shivaji.byrapaneni]

my hash code method seems to be fine

could you please correct if i made any mistake there...?