AutoComplete findRegex() Expresiones Regulares ejbjmoordb

AutoComplete findRegex() Expresiones Regulares 
Desarrollaremos un ejemplo sencillo de una autocomplete utilzando expresiones regulares para busquedas en una coleccion en MongoDB, utilizando ejbmoordb.
Libro sobre jmoordb
https://www.gitbook.com/book/avbravo/jmoordb/details


Crear el Services

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@Stateless

public class AulasServices {

    @Inject

    AulasFacade aulasFacade;

   public static LocalTime getHour(){

       return LocalTime.now();

    }

    public List<Aulas> complete(String query) {

         List<Aulas> suggestions = new ArrayList<>();

        try {

            query = query.trim();

            if (query.length() < 1) {

               return suggestions;

            }

          suggestions = aulasFacade.findRegex("idaula",  query,true,new Document("idaula",1));



        } catch (Exception e) {

            JsfUtil.addErrorMessage("complete() " + e.getLocalizedMessage());

        }

        return suggestions;

    }

}










En el Controller



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 @Inject

    AulasServices aulasServices;

    Aulas aulasSelected;



    public AulasServices getAulasServices() {

        return aulasServices;

    }

    public void setAulasServices(AulasServices aulasServices) {

        this.aulasServices = aulasServices;

    }

      public Aulas getAulasSelected() {

        return aulasSelected;

    }

    public void setAulasSelected(Aulas aulasSelected) {

        this.aulasSelected = aulasSelected;

    }

     @Override

    public void handleSelect(SelectEvent event) {

        try {

           aulasList.removeAll(aulasList);

            aulasList.add(aulasSelected);

            aulasFiltered = aulasList;

            aulasDataModel = new AulasDataModel(aulasList);

        } catch (Exception ex) {

     JsfUtil.addErrorMessage("handleSelect() " + ex.getLocalizedMessage());

        }

    }




En la página xhtml



 <div class="form-group row">

    <p:outputLabel class="col-xs-2 col-form-label" value="#{msg['info.by']} #{msg.idaula}"/>

   <div class="col-xs-4">

      <p:autoComplete  scrollHeight="250"   dropdown="false"  size="45"          emptyMessage="#{msg['info.nohayregistros']}" 

        title="#{msg['info.by']} #{msg.idaula}"

        label="#{msg['info.by']} #{msg.idaula}"

        alt="#{msg['info.searchby']} #{msg.idaula}"

        value="#{aulasController.aulasSelected}"  

        completeMethod="#{aulasController.aulasServices.complete}"  

        var="p"  itemLabel="#{p.idaula}"  itemValue="#{p}" forceSelection="true"> 

      <f:converter binding="#{aulasConverter}"/>

    <p:ajax event="itemSelect" listener="#{aulasController.handleSelect}"  update=" :form:msgs,:form:dataTable" />  

    <f:facet name="itemtip">

    <h:panelGrid columns="1" cellpadding="5">

        <h:outputText value="#{p.idaula}" />

            <h:outputText value="#{p.maximo}" />

    </h:panelGrid>

  </f:facet>

  </p:autoComplete>   

</div>




Resultado