Please help How to clear session after calling method..is anything wrong

Question

I am facing issue while adding and removing text fields, looks like somehow textfields values are stored in session.
Please help, is there anything wrong in the code...
Example Detail :
a) I am genereating textfields dynamicaaly using ui:repeat
If I add 3 textfields say with Values "AAAA", "BBBB" and "CCCC" in a row.
b) When I click on remove link against "BBBB" row, on the UI it removes "CCCC" BUT I checked the backend methods which handles this, it looks like it is removing correct "BBBB" in ProjectHome.removeTreatmentLink().
c) Even if "CCCC" is removed, assuming 2 rows with "AAAA", "BBBB" are left on clicking "Add treatment link" it adds a row but displays value as "CCCC"
There is no database interaction at this point.
Log on clicking "ProjectHome.removeTreatmentLink()" link:
+[STDOUT] ProjectHome.removeTreatmentLink(), compare reagent hashcode : reagentEnitty[0]16784247, HASCODE FROM FORM UI=16784247+
+[STDOUT] ProjectHome.removeTreatmentLink(), Size of T=3+
+[STDOUT] ProjectHome.removeTreatmentLink(), FINAL Comp name left = AAAA+
+[STDOUT] ProjectHome.removeTreatmentLink(), compare treatment hashcode 2 : TreatmentEntity[1]5700104, HASCODE FROM FORM UI=5700104+
+[STDOUT] ProjectHome.removeTreatmentLink(), TreatMent.CompName TO REMOVE =BBBB+
+[STDOUT] ProjectHome.removeTreatmentLink(), FINAL Comp name left = CCCC+
+[STDOUT] ProjectHome.removeTreatmentLink(), outside for, reagent.getTreatment() = [com.entity.Treatment@b4818[+
treatmentCompoundName=AAAA
+.......+
+], com.entity.Treatment@56fa08[+
treatmentCompoundName=BBBB
+.....+
+], com.entity.Treatment@127d1b4[+
treatmentCompoundName=CCCC
+......+
+]]+
XHTML:------
<ui:repeat value="#{projectHome.reagent.treatment}" var="itreat">
<h:inputText value="#{itreat.treatmentCompoundName}"/>
</ui:repeat>
<h:commandLink action="#{projectHome.removeTreatmentLink}"
  value="Remove"
  onclick="if (!confirm('Are you sure you want to remove this treatment?')) return false;">
<f:param name="re_hashcode" value="#{info.hashCode()}"/>
<f:param name="tr_hashcode" value="#{itreat.hashCode()}"/>
</h:commandLink>
ProjectHome.java----------------
@Name("projectHome")
public class ProjectHome extends EntityHome<Project> {
public String removeTreatmentLink(){
  javax.faces.context.FacesContext facesContext = (new org.jboss.seam.faces.FacesContext()).getContext();
  javax.servlet.http.HttpServletRequest hsr=(javax.servlet.http.HttpServletRequest)facesContext.getCurrentInstance().getExternalContext().getRequest();
  String reagentHashcode=hsr.getParameter("re_hashcode");
  String treatmentHashcode=hsr.getParameter("tr_hashcode");
  for(int i=0;i<reagent.length;i++){
      System.out.println("ProjectHome.removeTreatmentLink(), compare reagent hashcode : reagentEnitty["+i+"]"+reagent.hashCode()+", HASCODE FROM FORM UI="+reagentHashcode);
if(reagent[i].hashCode()==Integer.parseInt(reagentHashcode)){
int sz=reagent[i].getTreatment().size();
Treatment t[] = new Treatment[reagent[i].getTreatment().size()];
for(int k=0;k<t.length;k++){
t[k]=reagent[i].getTreatment().get(k);
System.out.println("ProjectHome.removeTreatmentLink(), Size of T="+t.length);
Treatment t1[] = new Treatment[t.length-1];
ArrayList<Treatment> al= new ArrayList<Treatment>();
for(int j=0;j<t.length;j++){
if(t[j].hashCode()==Integer.parseInt(treatmentHashcode)){
System.out.println("ProjectHome.removeTreatmentLink(), compare treatment hashcode 2 : TreatmentEntity["+j+"]"+t[j].hashCode()+", HASCODE FROM FORM UI="+treatmentHashcode);
System.out.println("ProjectHome.removeTreatmentLink(), TreatMent.CompName TO REMOVE ="+t[j].getTreatmentCompoundName());
}else{
System.out.println("ProjectHome.removeTreatmentLink(), FINAL Comp name left = "+t[j].getTreatmentCompoundName());
al.add(t[j]);
System.out.println("ProjectHome.removeTreatmentLink(), outside for, reagent[i].getTreatment() = "+reagent[i].getTreatment());
reagent[i].getTreatment().clear();
reagent[i].setTreatment(al);
break;
return "";

Answer 1

In the future, you should be posting JSF related questions at the JSF forum.
I see in your message history that you already posted one there some days ago. Since I saw it again, yes I recall your topic and I also recall that I initially ignored it because you marked it as urgent. [That was not so smart|http://www.catb.org/~esr/faqs/smart-questions.html].
val_123 wrote:
Please help, is there anything wrong in the code... According to your problem: you need to preserve exactly the same datamodel during the apply request values phase of the form submit request as it was during the render response phase of the initial display request. This is also told several times in all of those countless "commandlink dont work in datatable" topics in the JSF forum. The same story goes on other UIData components like ui:repeat as well.
Edited by: BalusC on 1-dec-2008 14:47