Koledzy zerknijcie na ten kod. Co jest nie tak, że nie mogę po kliknieciu przycisku dodac obiektu do bazy danych.

 
@Entity
    public class House implements Serializable
    {
        @Id
        @GeneratedValue
        private long id;
        private String name;



        public House() {
            super();
        }

        public long getId() {
            return id;
        }
        public void setId(long id) {
            this.id = id;
        }
        public String getName() {
            return name;
        }
        public void setName(String name) {
            this.name = name;
    }

    }

 
@ManagedBean
        @RequestScoped
        public class HouseaBean 
        {
        private House house;

        public HouseBean() {
                super();
            }

        private House house;


        public House getHouse() {
            return house;
        }

        public void setHouse(House house) {
            this.house = house;
        }

        public void addHouse()
        {
        house = new House();
        EntityManagerFactory entityManagerFactory = Persistence
                        .createEntityManagerFactory("HealthHelper");

                EntityManager entityManager = entityManagerFactory
                        .createEntityManager();
                entityManager.getTransaction().begin();
                entityManager.persist(house);
                entityManager.getTransaction().commit();

                entityManager.close();
                entityManagerFactory.close();
        }

        }

 
<!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:ui="http://java.sun.com/jsf/facelets"
    xmlns:h="http://java.sun.com/jsf/html"
    xmlns:f="http://java.sun.com/jsf/core"
    xmlns:p="http://primefaces.org/ui">

<ui:composition template="/tampl.xhtml">

    <ui:define name="content">
        <h:form>
        <h:panelGrid id="panel">
            <p:outputLabel id="labelName" value="name">
            </p:outputLabel>
            <p:inputText id="TextName" value="#{HouseBean.house.name}"></p:inputText>

            <p:commandButton action="#{HouseBean.addHouse()}"></p:commandButton>
            </h:panelGrid>
        </h:form>
    </ui:define>

</ui:composition>
</html>