How to dynamically get value of component p:inputText inside a datatable? - jsf-2

Question

I have a primefaces Datatable:
<p:dataTable id="tabela" var="item"
value="#{myBean.lista}"
rowIndexVar="rowindex">
<p:column>
<p:inputText
required="true" id="inputAliquota" value="#{item.taxa}"
>
</p:inputText>
</p:column>
</p:dataTable>
In my backing bean I have a lista:
private List<Aliquota> lista;
And a Button to remove columns from my datatable:
<p:commandLink
immediate="true" id="botaoExcluir"
action="#{myBean.excluirAliquota}"
>
<f:setPropertyActionListener value="#{item}"
target="#{myBean.aliquota}" />
</p:commandLink>
When I start the bean I populate "lista" with 5 empty Aliquota objects.
In excluirAliquota method I get the object that has to be removed, compare with the values of the List and delete it. But I'm having problems. When the user change the value of inputText the change don't reflect the Aliquota object on list.
My question is how to set this value without submit it?

Answer 1

You cannot reflect the value on the backing bean without submitting it. However, you can submit it using Ajax by adding a listener to the input text. The listener method doesn't have to do anything, it can be empty, but it needs to be there for an Ajax submit. It can be something like that:
<p:dataTable id="tabela" var="item"
value="#{myBean.lista}"
rowIndexVar="rowindex">
<p:column>
<p:inputText
required="true" id="inputAliquota" value="#{item.taxa}"
>
<p:ajax listener="#{myBean.dummyListener()}"/>
</p:inputText>
</p:column>
</p:dataTable>
This will instantly reflect all changes in the inputText to the taxa field of the corresponding item. If that's what you want, you can use this method.