Problem populating Table data in Spring MVC

[pakjb]

Him

I have a problem populating the data of a table in my jsp into a Set collection. I hav a list of entity objects. Each object has a Set of child objects (Hibernate). My question is, how can I bind a table of these entities?

I have tried to do it defining varStatus and accessing through index element, but when it tries to populate child object (set collection) an error appears warning that it is not possible to access to a set element [0].

<c:forEach var="listaA" items="${resultsForm.resultList}" varStatus="loopA"> 
<c:forEach var="item" items="${listaA.cartel}" varStatus="loopCartel"> 
<form:checkbox path="resultList[${loopA.index}].cartel[${loopCartel.index}].selected" value="true" /> </c:forEach> 
</c:forEach>

I think the problem is due to the fact I defined a java.util.Set instead of List, but must of my hibernate hbm's have Set Collections.

Could anybody help me?

Thanks. Regards. JB.

[dr_pompeii]

Hello

I have tried to do it defining varStatus and accessing through index element, but when it tries to populate child object (set collection) an error appears warning that it is not possible to access to a set element [0].

Post the complete error stack trace

Could you post how you are filling the collections?

[pakjb]

Hi,

The Set Collection comes from hibernate select.

The stack trace:

Invalid property 'resultList[0].cartel[0]' of bean class [com.toroliga.form.SearchResultsForm]: Illegal attempt to get property 'cartel' threw exception; nested exception is org.springframework.beans.InvalidPropertyException : Invalid property 'resultList[0].cartel[0]' of bean class [com.toroliga.form.SearchResultsForm]: Cannot get element with index 0 from Set of size 0, accessed using property path 'cartel[0]'

Regards.
JB.

[dr_pompeii]

Hello

The Set Collection comes from hibernate select.

I want to see such DAO method because in your exception appear this

Invalid property 'resultList[0].cartel[0]' of bean class [com.toroliga.form.SearchResultsForm]:
Cannot get element with index 0 from Set of size 0, accessed using property path 'cartel[0]'

One collection is empty

[pakjb]

Hi,

The collection it isn't empty, but the index 0 of the collection is null, the object it is on index 10. I think it's due to set properties. If I use List instead Set everything works correctly, so I suppose I can't access through loopCartel.index.

Is there any else I could do?

Thanks.
Regards.
JB.