Car

Car.java
01/* Copyright (C) 2004 - 2007 db4objects Inc. http://www.db4o.com */ 02package com.db4odoc.tpclone; 03 04import com.db4o.activation.ActivationPurpose; 05import com.db4o.activation.Activator; 06import com.db4o.ta.Activatable; 07 08public class Car implements Activatable, Cloneable { 09 private String model; 10 private Pilot pilot; 11 transient Activator _activator; 12 13 public Car(String model, Pilot pilot) { 14 this.model = model; 15 this.pilot = pilot; 16 } 17 // end Car 18 19 public Object clone() throws CloneNotSupportedException { 20 return super.clone(); 21 } 22 // end clone 23 24 // Bind the class to an object container 25 public void bind(Activator activator) { 26 if (_activator == activator) { 27 return; 28 } 29 if (activator != null && _activator != null) { 30 throw new IllegalStateException(); 31 } 32 _activator = activator; 33 } 34 // end bind 35 36 // activate the object fields 37 public void activate(ActivationPurpose purpose) { 38 if (_activator == null) 39 return; 40 _activator.activate(purpose); 41 } 42 // end activate 43 44 45 public String getModel() { 46 activate(ActivationPurpose.READ); 47 return model; 48 } 49 // end getModel 50 51 public String toString() { 52 activate(ActivationPurpose.READ); 53 return model + "[" + pilot + "]"; 54 } 55 // end toString 56 57}