Java - Simple User entity class

1. Java - Primitives
2. Java - Strings
3. Java - Arrays
4. Java - Date
5. Java - Generics
6. Java - Collections
7. Java - Localization
8. Java - Formatting
9. Java - Regular Expressions
10. Java - System
11. Java - Serialization
12. Java - Multithreading
13. Java - IO/File
14. Java - Networking
15. Java - ORM - JPA
      a) Simple User entity class

package jpa;

import java.io.Serializable;
import javax.persistence.*;


/**
 * USER ENTITY CLASS
 * @author stanislav.zorjan
 */

@Entity
@Table(name="users")
@NamedQueries({
    @NamedQuery(name="User.findAll",
                query="SELECT c FROM User c"),
    @NamedQuery(name="User.findByFirstName",
                query="SELECT c FROM User c WHERE c.firstName = :firstName"),
    @NamedQuery(name="User.findByLastName",
                query="SELECT c FROM User c WHERE c.lastName = :lastName"),
    @NamedQuery(name="User.findByAddress",
                query="SELECT c FROM User c WHERE c.address = :address")
})
public class User implements Serializable{
    
    @Id
    @GeneratedValue
    private Integer id;
    private String firstName;
    private String lastName;
    private String address;

    public Integer getId() {
	return id;
    }

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

    /**
     * @return the firstName
     */
    public String getFirstName() {
	return firstName;
    }

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

    /**
     * @return the lastName
     */
    public String getLastName() {
	return lastName;
    }

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

    /**
     * @return the address
     */
    public String getAddress() {
	return address;
    }

    /**
     * @param address the address to set
     */
    public void setAddress(String address) {
	this.address = address;
    }
    
    @Override
    public String toString(){
	return this.firstName+", "+this.lastName+", "+this.address;
    }
    
}