Question

for manage a cart i have create an HashMap and i convert this in a list for display into a PrimeFaces Datatable with this method:

public List<Map.Entry<Livre, Integer>> getPanier() {
      Set<Map.Entry<Livre, Integer>> panierSet = panier.entrySet();
      return new ArrayList<Map.Entry<Livre, Integer>>(panierSet); 
}

Once the list shown i wish to update the quantity directly inside the datatable with inputText.

But i have no idea if this is possible ? or if i need to convert HashMap in ArrayList for do this traitement.

Answer 1

You can use something like this in your table

<h:inputText value="#{myMap[someVarUsedInDatatable.keyOfThatRow]}"/> 

That will allow you to read and modify the relevant value in the relevant key…