Prototype kincolle’s blogs

The prototype pattern is a creational design pattern in software development. It is used when the type of objects to create is determined by a prototypical instance, which is cloned to produce new objects.

Here is the java code example:

public class Prototype implements Cloneable, Serializable {

    private static final long serialVersionUID = 1L;
    private String string;

    private SerializableObject obj;

    /* clone */
    public Object clone() throws CloneNotSupportedException {
        Prototype proto = (Prototype) super.clone();
        return proto;
    }

    /* deepClone */
    public Object deepClone() throws IOException, ClassNotFoundException {

        /* Write 2 byte stream of this object */
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        ObjectOutputStream oos = new ObjectOutputStream(bos);
        oos.writeObject(this);

        /* Read 2 byte stream of this object */
        ByteArrayInputStream bis = new ByteArrayInputStream(bos.toByteArray());
        ObjectInputStream ois = new ObjectInputStream(bis);
        return ois.readObject();
    }

    public String getString() {
        return string;
    }

    public void setString(String string) {
        this.string = string;
    }

    public SerializableObject getObj() {
        return obj;
    }

    public void setObj(SerializableObject obj) {
        this.obj = obj;
    }

}

class SerializableObject implements Serializable {
    private static final long serialVersionUID = 1L;
}