/* * Person.java * * Created on June 10, 2005, 2:03 PM * * To change this template, choose Tools | Options and locate the template under * the Source Creation and Management node. Right-click the template and choose * Open. You can then make changes to the template in the Source Editor. */package ch02.pojo;import java.io.Serializable;/** * * @author kevin */public abstract class Person implements IPerson, Serializable{    private String personID;    private String firstName;    private String lastName;    private String address;    public  boolean dirty = false;    /** Creates a new instance of Person */    public Person() {    }        public void setPersonID(String personID){        this.personID = personID;    }        public String getPersonID(){        return personID;    }        public void setFirstName(String firstName){        this.firstName = firstName;        dirty();    }        public String getFirstName(){        return firstName;    }        public void setLastName(String lastName){        this.lastName = lastName;        dirty();    }        public String getLastName(){        return lastName;    }        public void setAddress(String address){        this.address = address;        dirty();    }        public String getAddress(){        return address;    }        protected void dirty(){        this.dirty = true;    }        public boolean isDirty(){        return dirty;    }        public boolean equals(Object o){        if(!(o instanceof Person))return false;        Person person = (Person)o;        if(person.personID.equals(personID))return true;        return false;    }        }