Java Object Deep Copy deepCopy(Serializable source)

Description

Utility for making deep copies (vs.

License

Apache License

Declaration

public static Serializable deepCopy(Serializable source) 

Method Source Code

//package com.java2s;
//License from project: Apache License 

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;

public class Main {
    /**/* w  w  w . j  a  va  2 s  . c  o  m*/
     * Utility for making deep copies (vs. clone()'s shallow copies) of
      * objects. Objects are first serialized and then deserialized.
      * 
      * Uses standard (slow) serialization
      */
    public static Serializable deepCopy(Serializable source) {
        Object copy = null;

        try {
            // Write the object out to a byte array
            ByteArrayOutputStream bos = new ByteArrayOutputStream();
            ObjectOutputStream out = new ObjectOutputStream(bos);
            out.writeObject(source);
            out.flush();
            out.close();

            // Make an input stream from the byte array and read
            // a copy of the object back in.
            ObjectInputStream in = new ObjectInputStream(new ByteArrayInputStream(bos.toByteArray()));
            copy = in.readObject();
        } catch (Exception e) {
            throw new RuntimeException("error at deepCopy()", e);
        }
        return (Serializable) copy;
    }
}

Related

1. deepCopy(Object obj1, Object obj2)
2. deepCopy(Object oldObj)
3. deepCopy(Object orig)
4. deepCopy(Object original)
5. deepCopy(Object toCopy)
6. deepCopy(T item)
7. deepCopy(T originalObject)
8. deepCopy(T src)
9. deepCopy(T t)