Java/Serialization/ObjectGraph.java at master · Programming1212/Java

40 lines (35 loc) · 1.39 KB

/**

* Whenever we are serializing an object the set of all objects which are

* reachable from that object will be serialized automatically. This group of

* objects is nothing but object graph in serialization.

* In object graph every object should be Serializable otherwise we will get runtime exception saying"NotSerializableException".

import java.io.*;

class I_am_rechable2 implements Serializable

{

int a=90;

int b=23;

}

class I_am_rechable1 implements Serializable

{

I_am_rechable2 obj2=new I_am_rechable2();

}

class I_will_serelize implements Serializable

{

I_am_rechable1 obj1=new I_am_rechable1();

}

public class ObjectGraph {

public static void main(String[] args)throws Exception {

I_will_serelize obj = new I_will_serelize();

FileOutputStream fos = new FileOutputStream("abc.ser");

ObjectOutputStream oos = new ObjectOutputStream(fos);

oos.writeObject(obj);

FileInputStream fis = new FileInputStream("abc.ser");

ObjectInputStream ois = new ObjectInputStream(fis);

I_will_serelize iam_object = (I_will_serelize) ois.readObject();

//here we are serelizing I_will_serelizable object but all rechable object from this such as I_will_rechable1 and I_will_rechable2

//also get serelizable

System.out.println(iam_object.obj1.obj2.a + "_____________" + iam_object.obj1.obj2.b);

}

Provide feedback