Product.java

package org.javaee7.entity;

import java.io.Serializable;
import javax.persistence.Column;
import javax.persistence.DiscriminatorColumn;
import javax.persistence.DiscriminatorType;
import javax.persistence.DiscriminatorValue;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Inheritance;
import javax.persistence.InheritanceType;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;

/**
 *
 * @author Juneau
 */
@Entity
@Inheritance(strategy=InheritanceType.SINGLE_TABLE)
@DiscriminatorColumn(name="PRODUCT_TYPE", discriminatorType=DiscriminatorType.STRING,length=20)
@DiscriminatorValue("A")
public abstract class Product implements Serializable {
    private static final long serialVersionUID = 1L;
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Long id;
    @Column(name="NAME")
    String name;
    @Column(name="DESCRIPTION")
    String description;
    @ManyToOne(fetch=FetchType.LAZY)
    @JoinColumn(name="FACTORY_ID", referencedColumnName="ID")
    private Factory factory;
    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    @Override
    public int hashCode() {
        int hash = 0;
        hash += (getId() != null ? getId().hashCode() : 0);
        return hash;
    }

    @Override
    public boolean equals(Object object) {
        // TODO: Warning - this method won't work in the case the id fields are not set
        if (!(object instanceof Product)) {
            return false;
        }
        Product other = (Product) object;
        if ((this.getId() == null && other.getId() != null) || (this.getId() != null && !this.id.equals(other.id))) {
            return false;
        }
        return true;
    }

    @Override
    public String toString() {
        return "org.javaee7.entity.Factory[ id=" + getId() + " ]";
    }

    /**
     * @return the name
     */
    public String getName() {
        return name;
    }

    /**
     * @param name the name to set
     */
    public void setName(String name) {
        this.name = name;
    }

    /**
     * @return the description
     */
    public String getDescription() {
        return description;
    }

    /**
     * @param description the description to set
     */
    public void setDescription(String description) {
        this.description = description;
    }

    /**
     * @return the factory
     */
    public Factory getFactory() {
        return factory;
    }

    /**
     * @param factory the factory to set
     */
    public void setFactory(Factory factory) {
        this.factory = factory;
    }
    
}