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The source code

/*
 *                 Sun Public License Notice
 * 
 * The contents of this file are subject to the Sun Public License
 * Version 1.0 (the "License"). You may not use this file except in
 * compliance with the License. A copy of the License is available at
 * http://www.sun.com/
 * 
 * The Original Code is NetBeans. The Initial Developer of the Original
 * Code is Sun Microsystems, Inc. Portions Copyright 1997-2003 Sun
 * Microsystems, Inc. All Rights Reserved.
 */

package org.netbeans.editor;

/**
 * Interface that allows to bridge various implementations
 * of the arrays of objects (especially gap arrays).
 * 

Once an object implements this interface * it's easy to build a list on top of it by using * {@link org.netbeans.spi.lexer.util.LexerUtilities#createList(ObjectArray)}. * * @author Miloslav Metelka * @version 1.00 */ public interface ObjectArray { /** Get the item at the given index. * @param index >=0 and <{@link #getItemCount()} index at which the item * should be obtained. * @return the item at the requested index. * @throws IndexOutOfBoundsException if the index is <0 * or >={@link #getItemCount()} */ public Object getItem(int index); /** * @return >=0 Number of items in the object array. */ public int getItemCount(); /** * Interface allowing more efficient getting of the objects * from the object array. If the particular object array * does not implement this interface then its items * are accessed by {@link ObjectArray.getItem(int)} calls. * The {@link ObjectArrayUtilities.copyItems(ObjectArray, int, int, Object[], int)} * presents uniform access for obtaining of the items. */ public interface CopyItems { /** * Copy the items in the given index range from the object array into destination array. * @param srcStartIndex index of the first item in the object array to get. * @param srcEndIndex end index in the object array of the items to get. * @param dest destination array of objects. The length of the array * must be at least destIndex + (srcEndIndex - srcStartIndex). * @param destIndex first destination index at which the items are being stored. */ public void copyItems(int srcStartIndex, int srcEndIndex, Object[] dest, int destIndex); } public interface Modification { public ObjectArray getArray(); public int getIndex(); public Object[] getAddedItems(); public int getRemovedItemsCount(); } }

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