I tried to implement sorting and filtering for my datatable, but I got this error stop me from going further.
Here is the full trace:
Code: Select all
java.lang.ClassCastException: javax.faces.model.ListDataModel cannot be cast to org.primefaces.model.LazyDataModel
at org.primefaces.component.datatable.DataTable.loadLazyData(DataTable.java:641)
at org.primefaces.component.datatable.DataTableRenderer.encodeTbody(DataTableRenderer.java:407)
at org.primefaces.component.datatable.DataTableRenderer.encodeMarkup(DataTableRenderer.java:164)
at org.primefaces.component.datatable.DataTableRenderer.encodeEnd(DataTableRenderer.java:80)
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:878)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1620)
at javax.faces.render.Renderer.encodeChildren(Renderer.java:168)
at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:848)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1613)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1616)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1616)
at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:380)
at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:126)
at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:127)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:313)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1523)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:279)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:188)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:641)
at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:97)
at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:85)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:185)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:325)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:226)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:165)
at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:791)
at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:693)
at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:954)
at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:170)
at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:135)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:102)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:88)
at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:76)
at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:53)
at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:57)
at com.sun.grizzly.ContextTask.run(ContextTask.java:69)
at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:330)
at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:309)
at java.lang.Thread.run(Thread.java:619)
Code: Select all
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package com.customerapp.web;
import com.customerapp.ejb.CustomerSessionBean;
import com.customerapp.entity.Customer;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.ejb.EJB;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;
import org.primefaces.model.LazyDataModel;
/**
*
* @author sam
*/
@ManagedBean(name="customer")
@SessionScoped
public class CustomerMBean
{
@EJB
private CustomerSessionBean customerSessionBean;
private Customer customer;
private final static Logger logger = Logger.getLogger(CustomerMBean.class.getName());
private LazyDataModel<Customer> lazyModel;
public CustomerMBean()
{
lazyModel = new LazyDataModel<Customer>() {
/**
* Dummy implementation of loading a certain segment of data.
* In a real application, this method should load data from a datasource
*/
@Override
public List<Customer> load(int first, int pageSize, String sortField, boolean sortOrder, Map<String,String> filters) {
logger.log(Level.INFO, "Loading the lazy car data between {0} and {1}", new Object[]{first, (first+pageSize)});
//Sorting and Filtering information are not used for demo purposes just random dummy data is returned
//customerSessionBean.setFirstResult(first);
// customerSessionBean.setMaxResults(pageSize);
// return customerSessionBean.getResultList();
return null;
}
};
}
public LazyDataModel<Customer> getLazyModel() {
return lazyModel;
}
public void setLazyModel(LazyDataModel<Customer> lazyModel) {
this.lazyModel = lazyModel;
}
/**
* Returns list of customer objects to be displayed in the data table
* @return
*/
public List<Customer> getCustomers()
{
return customerSessionBean.retrieve();
}
/**
* Returns the selected Customer object
* @return
*/
public Customer getDetails()
{
//Can either do this for simplicity or fetch the details again from the
//database using the Customer ID
return customer;
}
/**
* Action handler - user selects a customer record from the list
* (data table) to view/edit
* @param customer
* @return
*/
public String showDetails(Customer customer)
{
this.customer = customer;
return "DETAILS";
}
/**
* Action handler - update the changes in the Customer object to the
* database
* @return
*/
public String update()
{
System.out.println("###UPDATE###");
customer = customerSessionBean.update(customer);
return "SAVED";
}
/**
* Action handler - goes to the Customer listing page
* @return
*/
public String list()
{
System.out.println("###LIST###");
return "LIST";
}
}
Thanks
Sam