Dear All,

I am having Problem with returnMaps function for many-to-many associations.

The following code never returns the map with the "dv" alias :
(though it works ok if I transform it into a one-to-many association)

crit = session.createCriteria(Product.class).add(
Expression.eq("id", _idProduct));
List list = crit.createCriteria("divis", "dv")
.add(Expression.like("libl", "Div%"))
.setResultTransformer(Criteria.ALIAS_TO_ENTITY_MAP)
.list();

Iterator iter = list.iterator();
listDivis = new ArrayList();
while (iter.hasNext())
{
Map map = (Map) iter.next();
pro = (Product) map.get(Criteria.ROOT_ALIAS);
listDivis.add(map.get("dv"));
}

the iter contains the right number of rows which are the number of Divi Objects found with the "divis" link.
Moreover hibernate does hydrate all the right beans.
It seems that the "dv" map is just not referenced in the ouput list.
any Idea ?

Thanks for all

After investigation in the code
This behaviour COULD NOT WORK with Hibernate since some code has not yet been done
Ths missing code should re-order the alias with the order of the maps
in : net.sf.hibernate.loader.CriteriaLoader.java.

I made a path which does the trick for my usecases but it's not generic ...


protected String generateTableAlias(String className, int n, String path, boolean isLinkTable) {
if (!isLinkTable) {
String userDefinedAlias = criteria.getAlias(path);
if (userDefinedAlias!=null) {
// modif Gauthier Peel
int position;
if(aliases.size()==0)
{
position = 0;
}else
{
position = aliases.size() -1;
}
aliases.add(position, userDefinedAlias); //very dodgy: depends upon the superclass not reordering things!
return userDefinedAlias;
}
}
String generatedAlias = super.generateTableAlias(className, n, path, isLinkTable);
aliases.add(generatedAlias);
return generatedAlias;
}



instead of the original :


protected String generateTableAlias(String className, int n, String path, boolean isLinkTable) {
if (!isLinkTable) {
String userDefinedAlias = criteria.getAlias(path);
if (userDefinedAlias!=null) {
aliases.add(userDefinedAlias); //very dodgy: depends upon the superclass not reordering things!
return userDefinedAlias;
}
}
String generatedAlias = super.generateTableAlias(className, n, path, isLinkTable);
aliases.add(generatedAlias);

If someone could tell me if this feature is in progress ?