package org.litesoft.bo.change;

import java.io.*;

public interface OriginalValueChangeTracker extends Serializable
{
    OriginalValueChangeTracker clear();

    OriginalValueChangeTracker recordChange( String pAttributeName, ChangeEntry pNewChangeEntry, Object pOldValue, Object pNewValue );

    boolean hasChanges();

    boolean isAttributeChanged( String pAttributeName );

    boolean isOriginalValueAvailableFor( String pAttributeName );

    Object getOriginalValueFor( String pAttributeName );

    ChangeEntry getOriginalValueChangeEntryFor( String pAttributeName );

    String[] getChangedAttributeNames();
}