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Posted to user@struts.apache.org by Ma...@bull.net on 2007/06/14 17:04:09 UTC
No Collection Found problem
Hello,
I am having some problems with getting a session attribut in my JSP.
A have a JSP where the user can make a search based on information he must
enter in a form.
The result of the search must be displayed in a table.
To display the result I do:
<logic:notEmpty name="cautionVOs" scope="session">
<tr>
<td>
<div style="overflow:auto; height:100px;">
<table class="result">
<logic:iterate id="cautionVOs" name="remPayVO" type="RemPayVO">
<tr>
<td><html:radio styleClass="radio" name="remPayVO"
property="paymentId"
value="<%=
remPayVO.getPaymentId().toString() %>"
onclick="forward
('prepare','/modifycautionmanagement.do','ModifyCautionForm');waiting();"
/>
</td>
<td><bean:write name="remPayVO" property=
"dateModifStatut" /></td>
<td><bean:write name="remPayVO" property="modePay"
/></td>
<td><bean:write name="ModifyCautionForm" property=
"compteFacturation" /></td>
<td><bean:write name="remPayVO" property="montant"
/></td>
<td><bean:write name="remPayVO" property=
"commentaire" /></td>
</tr>
</logic:iterate>
</table>
</div>
</td>
</tr>
</logic:notEmpty>
The problem is that I get the error javax.servlet.jsp.jspException: No
Collection found, and i think i get it with <logic:notEmpty name=
"cautionVOs" scope="session">
Here is a piece of my Action class:
*****
ModifyCautionForm modifyCautionForm = (ModifyCautionForm)form;
errors = modifyCautionForm.validate(mapping, request);
purgeSession(request);
RechercheCautionVO rechercheCautionVO = new RechercheCautionVO();
rechercheCautionVO.setCompteFacturation(modifyCautionForm.getCompteFacturation
());
rechercheCautionVO.setPaymentMethod(modifyCautionForm.getModePay());
rechercheCautionVO.setMontant(modifyCautionForm.getMontant());
rechercheCautionVO.setDate(date);
rechercheCautionVO.setPaymentID(modifyCautionForm.getPaymentID());
rechercheCautionVO.setBanque(modifyCautionForm.getBanque());
rechercheCautionVO.setAgence(modifyCautionForm.getAgence());
rechercheCautionVO.setCompte(modifyCautionForm.getCompte());
rechercheCautionVO.setNumPiece(modifyCautionForm.getNumPiece());
Collection cautions = null;
try {
PaymentDelegate payDelegate = new PaymentDelegate();
cautions = payDelegate.getAccountCaution(rechercheCautionVO);
log.debug("*** cautions size " + cautions.size());
log.debug("*** cautions is empty? " + cautions.isEmpty());
request.getSession().setAttribute( SESSION_REMPAYVOS, cautions);
Collection col = (Collection)request.getSession
().getAttribute(SESSION_REMPAYVOS);
log.debug("*** cautions is empty? " + col.isEmpty());
modifyCautionForm.setCautionVOs(cautions);
Iterator it = modifyCautionForm.getCautionVOs().iterator();
while(it.hasNext()){
RemPayVO rpVO = (RemPayVO)it.next();
log.debug("paymentID: " + rpVO.getPaymentId());
}
****
(SESSION_REMPAYVOS = "cautionVOs")
When I look at the log I can verify that cautions is not null, and neither
is the session attribute.
But if i add
<% Collection col = (Collection)request.getSession().getAttribute(
"cautionVos"); %>
in my JSP right before
<logic:notEmpty name="cautionVOs" scope="session">
I get a java.lang.NullPointerException
Somewhere between my action class and my jsp the session attribute is set
to null.
Does anyone have some idea of what is happening??
Thanks in advance!!
Marianne
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Re: No Collection Found problem
Posted by Niall Pemberton <ni...@gmail.com>.
On 6/14/07, Marianne.Gardes@bull.net <Ma...@bull.net> wrote:
> Hello,
>
> I am having some problems with getting a session attribut in my JSP.
>
> A have a JSP where the user can make a search based on information he must
> enter in a form.
> The result of the search must be displayed in a table.
>
> To display the result I do:
>
> <logic:notEmpty name="cautionVOs" scope="session">
> <tr>
> <td>
> <div style="overflow:auto; height:100px;">
> <table class="result">
> <logic:iterate id="cautionVOs" name="remPayVO" type="RemPayVO">
> <tr>
> <td><html:radio styleClass="radio" name="remPayVO"
> property="paymentId"
> value="<%=
> remPayVO.getPaymentId().toString() %>"
> onclick="forward
> ('prepare','/modifycautionmanagement.do','ModifyCautionForm');waiting();"
> />
> </td>
> <td><bean:write name="remPayVO" property=
> "dateModifStatut" /></td>
> <td><bean:write name="remPayVO" property="modePay"
> /></td>
> <td><bean:write name="ModifyCautionForm" property=
> "compteFacturation" /></td>
> <td><bean:write name="remPayVO" property="montant"
> /></td>
> <td><bean:write name="remPayVO" property=
> "commentaire" /></td>
> </tr>
>
> </logic:iterate>
> </table>
> </div>
>
>
> </td>
> </tr>
> </logic:notEmpty>
>
> The problem is that I get the error javax.servlet.jsp.jspException: No
> Collection found, and i think i get it with <logic:notEmpty name=
> "cautionVOs" scope="session">
>
> Here is a piece of my Action class:
> *****
> ModifyCautionForm modifyCautionForm = (ModifyCautionForm)form;
> errors = modifyCautionForm.validate(mapping, request);
> purgeSession(request);
>
> RechercheCautionVO rechercheCautionVO = new RechercheCautionVO();
>
> rechercheCautionVO.setCompteFacturation(modifyCautionForm.getCompteFacturation
> ());
> rechercheCautionVO.setPaymentMethod(modifyCautionForm.getModePay());
> rechercheCautionVO.setMontant(modifyCautionForm.getMontant());
> rechercheCautionVO.setDate(date);
> rechercheCautionVO.setPaymentID(modifyCautionForm.getPaymentID());
> rechercheCautionVO.setBanque(modifyCautionForm.getBanque());
> rechercheCautionVO.setAgence(modifyCautionForm.getAgence());
> rechercheCautionVO.setCompte(modifyCautionForm.getCompte());
> rechercheCautionVO.setNumPiece(modifyCautionForm.getNumPiece());
>
> Collection cautions = null;
>
> try {
> PaymentDelegate payDelegate = new PaymentDelegate();
> cautions = payDelegate.getAccountCaution(rechercheCautionVO);
> log.debug("*** cautions size " + cautions.size());
> log.debug("*** cautions is empty? " + cautions.isEmpty());
>
> request.getSession().setAttribute( SESSION_REMPAYVOS, cautions);
> Collection col = (Collection)request.getSession
> ().getAttribute(SESSION_REMPAYVOS);
> log.debug("*** cautions is empty? " + col.isEmpty());
> modifyCautionForm.setCautionVOs(cautions);
>
> Iterator it = modifyCautionForm.getCautionVOs().iterator();
> while(it.hasNext()){
> RemPayVO rpVO = (RemPayVO)it.next();
> log.debug("paymentID: " + rpVO.getPaymentId());
> }
>
> ****
>
> (SESSION_REMPAYVOS = "cautionVOs")
>
>
> When I look at the log I can verify that cautions is not null, and neither
> is the session attribute.
>
> But if i add
> <% Collection col = (Collection)request.getSession().getAttribute(
> "cautionVos"); %>
> in my JSP right before
> <logic:notEmpty name="cautionVOs" scope="session">
> I get a java.lang.NullPointerException
>
> Somewhere between my action class and my jsp the session attribute is set
> to null.
Are you sure that it is the <logic:notEmpty> that is causing the
problem? The reason I'm asking is that your <logic:iterate> doesn't
seem to tie up with what you have in <logic:notEmpty> and doesn't
match what you say your session attribute is. Looks to me like you
have the "id" and "name" attributes the wrong way round - should be:
<logic:iterate name="cautionVOs" id="remPayVO" type="RemPayVO">
Niall
> Does anyone have some idea of what is happening??
> Thanks in advance!!
>
> Marianne
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