Primefaces dataTable ne pas actualiser le contenu

J'ai quelques problèmes avec l'actualisation sur un plateau chargé dataTable de Primesfaces. Je suis en 3.0.M4.

Ont trois classes comme dans votre exemple avec le filtre. Essayé aussi l'exemple avec le chargement paresseux, mais ensuite, les données n'ont pas été rechargé dans le contrôleur. J'ai donc utilisé le deuxième exemple avec le filtrage. Là, je reçois recharger les événements dans le contrôleur (enregistreur affiche "Chargement des données").
Mais le tableau ne pas afficher les nouvelles données :-(. Pourquoi?

Quelqu'un qui peut m'aider?

Salutations!

LazyCarDataModel

package org.jboss.as.quickstarts.helloworld;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import org.primefaces.model.LazyDataModel;
import org.primefaces.model.SortOrder;

/**
 * Dummy implementation of LazyDataModel that uses a list to mimic a real datasource like a database.
 */
public class LazyCarDataModel extends LazyDataModel<Car> {

    private static final long serialVersionUID = 1L;

    private List<Car> datasource;

    public LazyCarDataModel(List<Car> datasource) {
        this.datasource = datasource;
    }

    @Override
    public Car getRowData(String rowKey) {
        for(Car car : datasource) {
            if(car.getModel().equals(rowKey))
                return car;
        }

        return null;
    }

    @Override
    public Object getRowKey(Car car) {
        return car.getModel();
    }

    @Override
    public List<Car> load(int first, int pageSize, String sortField, SortOrder sortOrder, Map<String,String> filters) {
        List<Car> data = new ArrayList<Car>();

        //filter
        for(Car car : datasource) {
            boolean match = true;

            for(Iterator<String> it = filters.keySet().iterator(); it.hasNext();) {
                try {
                    String filterProperty = it.next();
                    String filterValue = filters.get(filterProperty);
                    String fieldValue = String.valueOf(car.getClass().getField(filterProperty).get(car));

                    if(filterValue == null || fieldValue.startsWith(filterValue)) {
                        match = true;
                    }
                    else {
                        match = false;
                        break;
                    }
                } catch(Exception e) {
                    match = false;
                } 
            }

            if(match) {
                data.add(car);
            }
        }

        //sort
        if(sortField != null) {
            Collections.sort(data, new LazySorter(sortField, sortOrder));
        }

        //rowCount
        int dataSize = data.size();
        this.setRowCount(dataSize);

        //paginate
        if(dataSize > pageSize) {
            try {
                return data.subList(first, first + pageSize);
            }
            catch(IndexOutOfBoundsException e) {
                return data.subList(first, first + (dataSize % pageSize));
            }
        }
        else {
            return data;
        }
    }
}

LazyTableBean

package org.jboss.as.quickstarts.helloworld;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
import java.util.UUID;

import javax.enterprise.context.SessionScoped;
import javax.inject.Named;

import org.primefaces.model.LazyDataModel;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

@Named
@SessionScoped
public class LazyTableBean implements Serializable {
    private static final long serialVersionUID = 1L;

    private final static Logger logger = LoggerFactory.getLogger(LazyTableBean.class);

    private final static String[] colors;

    private final static String[] manufacturers;

    private List<Car> cars;

    static {
            colors = new String[10];
            colors[0] = "Black";
            colors[1] = "White";
            colors[2] = "Green";
            colors[3] = "Red";
            colors[4] = "Blue";
            colors[5] = "Orange";
            colors[6] = "Silver";
            colors[7] = "Yellow";
            colors[8] = "Brown";
            colors[9] = "Maroon";

            manufacturers = new String[10];
            manufacturers[0] = "Mercedes";
            manufacturers[1] = "BMW";
            manufacturers[2] = "Volvo";
            manufacturers[3] = "Audi";
            manufacturers[4] = "Renault";
            manufacturers[5] = "Opel";
            manufacturers[6] = "Volkswagen";
            manufacturers[7] = "Chrysler";
            manufacturers[8] = "Ferrari";
            manufacturers[9] = "Ford";
    }

    private LazyCarDataModel lazyModel;

    private Car selectedCar;

    public LazyTableBean() {
        cars = new ArrayList<Car>();

        populateLazyRandomCars(cars, 100000);  
        lazyModel = new LazyCarDataModel(cars);  

    }

    public Car getSelectedCar() {
        return selectedCar;
    }

    public void setSelectedCar(Car selectedCar) {
        this.selectedCar = selectedCar;
    }

    public LazyDataModel<Car> getLazyModel() {
        return lazyModel;
    }

    private void populateLazyRandomCars(List<Car> list, int size) {
        System.out.println("Loading data");
        for(int i = 0 ; i < size ; i++) {
            list.add(new Car(getRandomModel(), getRandomYear(), getRandomManufacturer(), getRandomColor()));
        }
    }

    private String getRandomColor() {
        return colors[(int) (Math.random() * 10)];
    }

    private String getRandomManufacturer() {
        return manufacturers[(int) (Math.random() * 10)];
    }

    private int getRandomYear() {
        return (int) (Math.random() * 50 + 1960);
    }

    private String getRandomModel() {
        return UUID.randomUUID().toString().substring(0, 8);
    }

}

Et ici le xhtml:

<?xml version="1.0" encoding="UTF-8"?>
<ui:composition xmlns="http://www.w3.org/1999/xhtml"
  xmlns:ui="http://java.sun.com/jsf/facelets"
  xmlns:f="http://java.sun.com/jsf/core"
  xmlns:h="http://java.sun.com/jsf/html"
  xmlns:p="http://primefaces.org/ui" template="template-default.xhtml">

  <ui:define name="content">

    <h:form>

      <p:dataTable var="car" value="#{lazyTableBean.lazyModel}"
        paginator="true" rows="10" lazy="true"
        paginatorTemplate="{RowsPerPageDropdown} {FirstPageLink} {PreviousPageLink} {CurrentPageReport} {NextPageLink} {LastPageLink}"
        rowsPerPageTemplate="5,10,15"
        selection="#{lazyTableBean.selectedCar}" selectionMode="single">
        <p:ajax event="rowSelect"
          listener="#{lazyTableBean.onRowSelect}" update=":form:display"
          oncomplete="carDialog.show()" />

        <p:column headerText="Model">
          <h:outputText value="#{car.model}" />
        </p:column>

        <p:column headerText="Year">
          <h:outputText value="#{car.year}" />
        </p:column>

        <p:column headerText="Manufacturer">
          <h:outputText value="#{car.manufacturer}" />
        </p:column>

        <p:column headerText="Color">
          <h:outputText value="#{car.color}" />
        </p:column>
      </p:dataTable>

      <p:dialog header="Car Detail" widgetVar="carDialog"
        resizable="false" width="200" showEffect="explode"
        hideEffect="explode">

        <h:panelGrid id="display" columns="2" cellpadding="4">

          <f:facet name="header">
            <p:graphicImage
              value="/images/cars/#{lazyTableBean.selectedCar.manufacturer}.jpg" />
          </f:facet>

          <h:outputText value="Model:" />
          <h:outputText value="#{lazyTableBean.selectedCar.model}" />

          <h:outputText value="Year:" />
          <h:outputText value="#{lazyTableBean.selectedCar.year}" />

          <h:outputText value="Manufacturer:" />
          <h:outputText
            value="#{lazyTableBean.selectedCar.manufacturer}" />

          <h:outputText value="Color:" />
          <h:outputText value="#{lazyTableBean.selectedCar.color}" />
        </h:panelGrid>
      </p:dialog>
    </h:form>
  </ui:define>
</ui:composition>

OriginalL'auteur MikeO | 2011-12-21