1 /* 2 * The contents of this file are subject to the terms of the Common Development 3 * and Distribution License (the License). You may not use this file except in 4 * compliance with the License. 5 * 6 * You can obtain a copy of the License at http://www.netbeans.org/cddl.html 7 * or http://www.netbeans.org/cddl.txt. 8 * 9 * When distributing Covered Code, include this CDDL Header Notice in each file 10 * and include the License file at http://www.netbeans.org/cddl.txt. 11 * If applicable, add the following below the CDDL Header, with the fields 12 * enclosed by brackets [] replaced by your own identifying information: 13 * "Portions Copyrighted [year] [name of copyright owner]" 14 * 15 * The Original Software is NetBeans. The Initial Developer of the Original 16 * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun 17 * Microsystems, Inc. All Rights Reserved. 18 */ 19 20 package org.netbeans.api.gsf; 21 22 import java.io.IOException; 23 import org.openide.filesystems.FileObject; 24 25 /** 26 * Implementations of this interface can read the contents of a FileObject. 27 * The IDE can for example provide a reader which either fetches the contents 28 * from disk, or from an open editor buffer if it has been edited. 29 * 30 * @author Tor Norbye 31 */ 32 public interface SourceFileReader { 33 /** 34 * Return a character sequence for the contents of the given file, 35 * which could be on disk, or modified in an open document, etc. 36 */ 37 CharSequence read(ParserFile file) throws IOException; 38 39 /** 40 * Return the last known caret offset of the given file, if it is being edited. 41 * Return -1 if the file is not open, or if the caret offset is not currently 42 * known. 43 */ 44 int getCaretOffset(ParserFile file); 45 } 46