package org.bouncycastle.util;
public interface Memoable
{
/**
* Produce a copy of this object with its configuration and in its current state.
* <p>
* The returned object may be used simply to store the state, or may be used as a similar object
* starting from the copied state.
*/
public Memoable copy();
/**
* Restore a copied object state into this object.
* <p>
* Implementations of this method <em>should</em> try to avoid or minimise memory allocation to perform the reset.
*
* @param other an object originally {@link #copy() copied} from an object of the same type as this instance.
* @throws ClassCastException if the provided object is not of the correct type.
* @throws MemoableResetException if the <b>other</b> parameter is in some other way invalid.
*/
public void reset(Memoable other);
}