boa tarde, preciso que uma tabela tenha suas alterações atualizadas sempre que o usuario pressionar no em um botao, mas a tela fica atualizando o tempo todo sem parar, acho que nao estou sabendo utilizar bem a ferramenta do ajax, alguem pode me tirar essa duvida
<div class="row">
<div class="col-md">
<div class="card" style="margin-top: 20px; min-height: 65vh;">
<div class="card-body bg-light">
<h5 class="card-title">Cadastrar Novos Comunicados</h5>
<hr class="mb-5" />
<h:form>
<div class="table-responsive">
<h:dataTable rendered="#{not empty indexBean.comunicadosList}"
value="#{indexBean.comunicadosList}" var="c"
styleClass="table dataTable table-hover table-sm" width="100%">
<h:column>
<f:facet name="header">ID</f:facet>
#{c.id}
</h:column>
<h:column>
<f:facet name="header">TITULO</f:facet>
#{c.titulo}
</h:column>
<h:column pt:style="text-align: center">
<h:commandLink action="#{indexBean.editarComunicado(c)}"
style="text-decoration:none;" pt:data-toggle="modal"
pt:data-target=".modal-edit" pt:data-backdrop="static"
pt:data-keyboard="false">
<i class="fa fa-folder-open-o fa-fw" aria-hidden="true" />
<f:ajax render="formTituloCom" />
</h:commandLink>
<h:commandLink action="#{indexBean.metodoTeste()}"
style="text-decoration:none;" pt:data-toggle="modal"
pt:data-target=".modal-delete" pt:data-backdrop="static"
pt:data-keyboard="false">
<i class="fa fa-trash-o fa-fw" aria-hidden="true" />
<f:ajax render="form-delete" />
</h:commandLink>
</h:column>
</h:dataTable>
</div>
<h:panelGroup>
<hr class="mb-3" />
<div class="btn-group" role="group">
<h:commandLink styleClass="btn btn-success"
pt:data-toggle="modal" pt:data-target=".modal-add"
pt:data-backdrop="static" pt:data-keyboard="false">
<i class="fa fa-clone fa-fw" aria-hidden="true" /> Adicionar
<f:ajax />
</h:commandLink>
<h:commandLink styleClass="btn btn-warning">
<i class="fa fa-refresh fa-fw" aria-hidden="true" /> Atualizar
<f:ajax event="click"
listener="#{indexBean.listarComunicados}" render="@form"
onevent="dataTableFromJSF" />
</h:commandLink>
</div>
</h:panelGroup>
</h:form>
</div>
</div>
</div>
</div>
