Primefaces ajax event change don't call listener

Question

Well, i have a method in my ManagedBean that reload my bean. this is my XHTML code:

<h:outputText value="Contrato: *" styleClass="bold" />
                        <p:selectOneMenu converter="entityConverter"
                            disabled="#{layoutExportacaoMB.bean.id != null}"
                            value="#{layoutExportacaoMB.contratoSelecionado}"
                            effect="fade" required="true" filter="true" filterMatchMode="contains"
                            requiredMessage="O Contrato é obrigatório">
                            <f:selectItem itemLabel="Selecione um Contrato" itemValue="" />
                            <f:selectItems value="#{layoutExportacaoMB.contratos}"
                                var="contrato"
                                itemLabel="#{contrato.numeroContratoFormatadoECliente}"
                                itemValue="#{contrato}" />
                            <p:ajax event="change" update="produtos" listener="#{layoutExportacaoMB.carregarProdutosContrato}" />
                        </p:selectOneMenu>

When user change this item the method bellow must be called but this don't happens. I know that ajax event change is fired because my component "produtos" is updated.

See my method on ManagedBean:

public void carregarProdutosContrato(){
    logger.info("Carregando contrato "+contratoSelecionado.getNumeroContratoFormatado());
    contratoSelecionado = (Contrato) getBoPadrao().findByNamedQuery(Contrato.FIND_COM_PRODUTOS_BY_ID, 
        new NamedParams("id", contratoSelecionado.getId()));
    }

SOLUTION:

Solution is more easy that i thought, just use listener with "()" in the end, look:

                    <p:ajax event="change" update="produtos" listener="#{layoutExportacaoMB.carregarProdutosContrato()}" />

Worked for me.

There's a lot of noise in the code. Most likely a conversion/validation error is causing the form submission to choke. place a <p:messages/> component on your page to see possible errors — kolossus
Bad solution. You should have added the correct event to the method parameters/signature on the java side instead of adding () in the call in tge xhtml. Secondly, solutions belong in Answers, not via an edit in the question — Kukeltje

Mr.J4mes Mr.J4mes · Accepted Answer · 2014-03-29T15:43:37

Try the following :):

Make sure your <p:selectOneMenu> is inside a <h:form>.
Add process="@this" attribute to your <p:ajax>.
Add a <p:growl> with globalOnly="false" and autoUpdate="true" may help you identify any validation and conversion errors.

Primefaces ajax event change don't call listener

2 Answers