Lock a button inside a dataTable in the firstfaces

I have the following problem, I have a dataTable that contains the possibility to edit the data using editing by the line, using the tag rowEditor and cellEditor . Next to it I have a button to delete that line. When I click the edit button I would like to block the delete button, so as not to allow the user to use this button during editing and others, but the main focus is the delete button.

I tried to use the events of dataTable with ajax but it is not possible. Does anybody indicate any way out for such a problem?

This datatable is within a form with id="form" and a panelgroup that includes another datatable that I want to implement the same functionality.

How can I accomplish this and if I can ...

<p:dataTable id="tabelaVigenciaCorrente" editable="true"
    value="#{tabelaTaxaBean.pojo.vigenciaCorrente.faixas}"
    emptyMessage="Adicione pelo menos uma faixa" var="corrente"
    sortBy="prazoMinimo">

    <p:ajax event="rowEditInit" listener="#{tabelaTaxaBean.setBotaoDesativado(true)}" update="btnExcluirFaixaCorrente"/>
    <p:ajax event="rowEdit" update=":form:messages"/>
    <p:ajax event="rowEditCancel" listener="#{tabelaTaxaBean.setBotaoDesativado(false)}" update="btnExcluirFaixaCorrente"/>

    <f:facet name="header">
        <div align="left">
            <p:outputLabel value="#{tabelaTaxaBean.cabecalhoVigenciaCorrente}" />
        </div>
    </f:facet>

    <p:column headerText="Prazo (em meses)">
        <p:cellEditor>
            <f:facet name="output">
                <p:outputLabel
                    value="#{corrente.prazoMinimo} a #{corrente.prazoMaximo}" />
            </f:facet>

            <f:facet name="input">
                <p:inputText label="Prazo inicial"
                    value="#{corrente.prazoMinimo}" size="8" maxlength="3"
                    onkeypress="mascara(this, soNumeros)" required="true" />
                &nbsp;&nbsp;
                <p:inputText label="Prazo final" value="#{corrente.prazoMaximo}"
                    size="8" maxlength="3" onkeypress="mascara(this, soNumeros)"
                    required="true" />
            </f:facet>
        </p:cellEditor>
    </p:column>

    <p:column headerText="Taxa de juros">
        <p:cellEditor>
            <f:facet name="output">
                <p:outputLabel value="#{corrente.taxaJuros}">
                    <f:convertNumber locale="pt_BR" minFractionDigits="2"
                        maxFractionDigits="2" />
                </p:outputLabel>
                <p:outputLabel value="%" />
            </f:facet>

            <f:facet name="input">
                <p:inputText label="Taxa de juros" value="#{corrente.taxaJuros}"
                    onkeypress="mascara(this,valorMonetario)" size="11"
                    maxlength="6" required="true">
                    <f:convertNumber locale="pt_BR" minFractionDigits="2"
                        maxFractionDigits="2" />
                </p:inputText>
            </f:facet>
        </p:cellEditor>
    </p:column>

    <p:column headerText="Taxa diferenciada para o banco/empresa">
        <p:cellEditor>
            <f:facet name="output">
                <p:outputLabel value="#{corrente.taxaDiferenciadaParaBanco}">
                    <f:convertNumber locale="pt_BR" minFractionDigits="2"
                        maxFractionDigits="2" />
                </p:outputLabel>
                <p:outputLabel
                    value="#{corrente.taxaDiferenciadaParaBanco == null ? '' : '%'}" />
            </f:facet>

            <f:facet name="input">
                <p:inputText label="Taxa diferenciada para o banco/empresa"
                    value="#{corrente.taxaDiferenciadaParaBanco}"
                    onkeypress="mascara(this,valorMonetario)" size="11"
                    maxlength="6">
                    <f:convertNumber locale="pt_BR" minFractionDigits="2"
                        maxFractionDigits="2" />
                </p:inputText>
            </f:facet>
        </p:cellEditor>
    </p:column>

    <p:column headerText="Comissão">
        <p:cellEditor>
            <f:facet name="output">
                <p:outputLabel value="#{corrente.comissao}">
                    <f:convertNumber locale="pt_BR" minFractionDigits="2"
                        maxFractionDigits="2" />
                </p:outputLabel>

                <p:outputLabel value="%" />
            </f:facet>

            <f:facet name="input">
                <p:inputText label="Comissão" value="#{corrente.comissao}"
                    onkeypress="mascara(this,valorMonetario)" size="11"
                    maxlength="6" required="true">
                    <f:convertNumber locale="pt_BR" minFractionDigits="2"
                        maxFractionDigits="2" />
                </p:inputText>
            </f:facet>
        </p:cellEditor>
    </p:column>

    <p:column headerText="Complemento">
        <p:cellEditor>
            <f:facet name="output">
                <p:outputLabel value="#{corrente.complementoComissao}">
                    <f:convertNumber locale="pt_BR" minFractionDigits="2"
                        maxFractionDigits="2" />
                </p:outputLabel>

                <p:outputLabel
                    value="#{corrente.complementoComissao == null ? '' : '%'}" />
            </f:facet>

            <f:facet name="input">
                <p:inputText label="Complemento"
                    value="#{corrente.complementoComissao}"
                    onkeypress="mascara(this,valorMonetario)" size="11"
                    maxlength="6">
                    <f:convertNumber locale="pt_BR" minFractionDigits="2"
                        maxFractionDigits="2" />
                </p:inputText>
            </f:facet>
        </p:cellEditor>
    </p:column>

    <p:column headerText="Ação" style="width: 7%"
        styleClass="coluna-acao">
        <p:rowEditor />
        &nbsp;
        <p:commandButton id="btnExcluirFaixaCorrente" process="@this" styleClass="botaoImagem"
            icon="botaoExcluir" title="Excluir" disabled="#{tabelaTaxaBean.botaoDesativado}"
            oncomplete="confirmationFaixaExclusao.show()">
            <f:setPropertyActionListener
                target="#{tabelaTaxaBean.vigenciaTipo}" value="corrente" />
            <f:setPropertyActionListener target="#{tabelaTaxaBean.faixa}"
                value="#{corrente}" />
        </p:commandButton>
    </p:column>

    <f:facet name="footer">
        <div align="right">
            <p:commandButton
                disabled="#{tabelaTaxaBean.pojo.vigenciaCorrente == null}"
                process="@this" value="Adicionar faixa"
                update=":dialogAdicionarFaixa" oncomplete="dlgFaixa.show();"
                action="#{tabelaTaxaBean.criarFaixa}" >
                <f:setPropertyActionListener
                    target="#{tabelaTaxaBean.vigenciaTipo}" value="corrente" />
            </p:commandButton>
            &nbsp;&nbsp;
            <p:commandButton process="@this" update=":dialogVigencia"
                oncomplete="dlgVigencia.show()" value="Editar vigência"
                action="#{tabelaTaxaBean.editarVigencia}"
                disabled="#{(tabelaTaxaBean.pojo.vigenciaCorrente == null) || (tabelaTaxaBean.pojo.vigenciaProxima != null)}" >
                <f:setPropertyActionListener
                    target="#{tabelaTaxaBean.vigenciaTipo}" value="corrente" />
            </p:commandButton>
            &nbsp;&nbsp;
            <p:commandButton process="@this" update=":dialogVigencia"
                oncomplete="confirmationVigenciaExclusao.show()"
                value="Excluir vigência"
                disabled="#{(tabelaTaxaBean.pojo.vigenciaCorrente == null) || (tabelaTaxaBean.pojo.vigenciaProxima != null)}">
                <f:setPropertyActionListener
                    target="#{tabelaTaxaBean.vigenciaTipo}" value="corrente" />
            </p:commandButton>
        </div>
    </f:facet>
</p:dataTable>