/*
* This file is part of muCommander, http://www.mucommander.com
* Copyright (C) 2002-2016 Maxence Bernard
*
* muCommander is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* muCommander is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.mucommander.commons.collections;
/**
* Interface to be implemented by classes that wish to be notified of changes made to an {@link AlteredVector}.
*
* <p>Those classes need to be registered as listeners to receive those events, this can be done by calling
* {@link AlteredVector#addVectorChangeListener(VectorChangeListener)}.
*
* @author Maxence Bernard
*/
public interface VectorChangeListener {
/**
* This method is called when one or more elements has been added to the AlteredVector.
*
* @param startIndex index at which the first element has been added
* @param nbAdded number of elements added
*/
void elementsAdded(int startIndex, int nbAdded);
/**
* This method is called when one or more elements has been removed from the AlteredVector.
*
* @param startIndex index at which the first element has been removed
* @param nbRemoved number of elements removed
*/
void elementsRemoved(int startIndex, int nbRemoved);
/**
* This method is called when an element has been changed in the AlteredVector.
*
* @param index index of the element that has been changed
*/
void elementChanged(int index);
}