JSF bean from database not shown - jsf

Question

I have the following bean:
import java.util.List;
import javax.faces.bean.RequestScoped;
import javax.annotations.ManagedBean;
import javax.persistence.EntityManager;
import listener.EMF;
import model.CustomerOrder;
#MangedBean
#RequestScoped
public class OrderBean {
private List<CustomerOrder> orderList;
/**
* Creates a new instance of OrderBean
*/
public OrderBean() {
EntityManager em = EMF.createEntityManager();
this.orderList = em.createNamedQuery("CustomerOrder.findAll").getResultList();
System.out.println("=== Orderlist ===");
for (CustomerOrder order : orderList) {
System.out.println(order.getNumber());
}
em.close();
}
public List<CustomerOrder> getOrderList() {
System.out.println("=== In getOrderList ===");
return orderList;
}
public void setOrderList(List<CustomerOrder> orderList) {
this.orderList = orderList;
}
}
The CustomerOrder class is a JPA class:
import java.io.Serializable;
import java.math.BigDecimal;
import java.util.*;
import java.util.regex.*;
import javax.persistence.*;
import javax.validation.constraints.NotNull;
import javax.validation.constraints.Size;
import listener.EMF;
import regex.AttachmentAnalyzer;
#Entity
#Table(name = "customerorder")
#NamedQueries({
#NamedQuery(name = "CustomerOrder.findAll", query = "SELECT c FROM CustomerOrder c"),
#NamedQuery(name = "CustomerOrder.findById", query = "SELECT c FROM CustomerOrder c WHERE c.id = :id"),
#NamedQuery(name = "CustomerOrder.findByNumber", query = "SELECT c FROM CustomerOrder c WHERE c.number = :number"),
#NamedQuery(name = "CustomerOrder.findByCalculationparameter", query = "SELECT c FROM CustomerOrder c WHERE c.calculationparameter = :calculationparameter"),
#NamedQuery(name = "CustomerOrder.findByActive", query = "SELECT c FROM CustomerOrder c WHERE c.active = :active"),
#NamedQuery(name = "CustomerOrder.findByLastupdate", query = "SELECT c FROM CustomerOrder c WHERE c.lastupdate = :lastupdate")})
public class CustomerOrder implements Serializable {
private static final long serialVersionUID = 1L;
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
#Basic(optional = false)
#Column(name = "id")
private Integer id;
#Size(max = 255)
#Column(name = "number")
private String number;
#Column(name = "calculationparameter")
private BigDecimal calculationparameter;
#Column(name = "active")
private Short active;
#Basic(optional = false)
#NotNull
#Column(name = "lastupdate")
#Temporal(TemporalType.TIMESTAMP)
private Date lastupdate;
#OneToMany(cascade = CascadeType.ALL, mappedBy = "customerorderId")
private List<Orderline> orderlineList;
#OneToMany(cascade = CascadeType.ALL, mappedBy = "customerorderId")
private List<Attachment> attachmentList;
#JoinColumn(name = "lastupdateby", referencedColumnName = "id")
#ManyToOne(optional = false)
private User lastupdateby;
#JoinColumn(name = "customer_id", referencedColumnName = "id")
#ManyToOne
private Customer customerId;
#Transient
private boolean validOrder;
public CustomerOrder() {
}
public CustomerOrder(Email email) {
this.attachmentList = email.getAttachments();
EntityManager em = EMF.createEntityManager();
List<Customer> customers = em.createNamedQuery("Customer.findAll").getResultList();
User systemUser = (User) em.createNamedQuery("User.findByName").setParameter("name", "system").getSingleResult();
em.close();
for (Customer customer : customers) {
String fromAddressFilter = customer.getEmailaddressfilter();
String subjectFilter = customer.getEmailsubjectfilter();
String subject = email.getSubject();
String content = email.getContent();
if (isMatch(email.getSubject(), subjectFilter)
&& isMatch(email.getFromAddress(), fromAddressFilter)) {
this.validOrder = true;
this.active = 1;
AttachmentAnalyzer analyzer = new AttachmentAnalyzer(customer, subject, content, attachmentList);
this.number = analyzer.getNumber();
this.calculationparameter = analyzer.getCalculationParameter();
this.orderlineList = analyzer.getOrderlineList();
this.customerId = customer;
this.lastupdateby = systemUser;
for (Attachment a : attachmentList) {
a.setCustomerorderId(this);
}
for (Orderline o : orderlineList) {
o.setCustomerorderId(this);
o.setLastupdateby(systemUser);
}
} else {
this.validOrder = false;
}
}
}
private boolean isMatch(String string, String filter) {
Pattern pattern;
pattern = Pattern.compile(filter);
Matcher matcher = pattern.matcher(string);
boolean isMatch = matcher.find();
return isMatch;
}
// getters, setters and overrided hashCode, equal and toString methods omitted
}
The JPA class constructor CustomerOrder(Email email) is called by Quartz when a new email message is received. I tested this and this works. I have some customerorder records in my database.
Finally my JSF page:
<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://xmlns.jcp.org/jsf/html">
<h:head>
<title>Test page</title>
</h:head>
<h:body>
<h:dataTable var="order" value="#{orderBean.orderList}" >
<h:column>
#{order.customerId}
</h:column>
</h:dataTable>
</h:body>
</html>
I am expecting this to output the customerId fields from thetable with customerorders in the database. However, it just returns an empty table.
I would at least expect that in my server terminal the Sysout messages from the bean are shown, but even these are not shown.
Question: What is wrong with my code, why are my database entry's not shown? How can I debug this problem?

Answer 1

using java 8, eclipse luna, tomcat 8 and mojarra 2.2.7;
after importing #ManagedBean from javax.faces.bean.ManagedBean instead of javax.annotations.ManagedBean, it works just fine.