Source Code Cross Referenced for FileStatusEvent.java in  » IDE-Netbeans » openide » org » openide » filesystems » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » IDE Netbeans » openide » org.openide.filesystems 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003:         *
004:         * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005:         *
006:         * The contents of this file are subject to the terms of either the GNU
007:         * General Public License Version 2 only ("GPL") or the Common
008:         * Development and Distribution License("CDDL") (collectively, the
009:         * "License"). You may not use this file except in compliance with the
010:         * License. You can obtain a copy of the License at
011:         * http://www.netbeans.org/cddl-gplv2.html
012:         * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
013:         * specific language governing permissions and limitations under the
014:         * License.  When distributing the software, include this License Header
015:         * Notice in each file and include the License file at
016:         * nbbuild/licenses/CDDL-GPL-2-CP.  Sun designates this
017:         * particular file as subject to the "Classpath" exception as provided
018:         * by Sun in the GPL Version 2 section of the License file that
019:         * accompanied this code. If applicable, add the following below the
020:         * License Header, with the fields enclosed by brackets [] replaced by
021:         * your own identifying information:
022:         * "Portions Copyrighted [year] [name of copyright owner]"
023:         *
024:         * Contributor(s):
025:         *
026:         * The Original Software is NetBeans. The Initial Developer of the Original
027:         * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
028:         * Microsystems, Inc. All Rights Reserved.
029:         *
030:         * If you wish your version of this file to be governed by only the CDDL
031:         * or only the GPL Version 2, indicate your decision by adding
032:         * "[Contributor] elects to include this software in this distribution
033:         * under the [CDDL or GPL Version 2] license." If you do not indicate a
034:         * single choice of license, a recipient has the option to distribute
035:         * your version of this file under either the CDDL, the GPL Version 2 or
036:         * to extend the choice of license to its licensees as provided above.
037:         * However, if you add GPL Version 2 code and therefore, elected the GPL
038:         * Version 2 license, then the option applies only if the new code is
039:         * made subject to such option by the copyright holder.
040:         */
041:        package org.openide.filesystems;
042:
043:        import java.util.EventObject;
044:
045:        /** Event describing a change in annotation of files.
046:         *
047:         * @author Jaroslav Tulach
048:         */
049:        public final class FileStatusEvent extends EventObject {
050:            static final long serialVersionUID = -6428208118782405291L;
051:
052:            /** changed files */
053:            private java.util.Set files;
054:
055:            /** icon changed? */
056:            private boolean icon;
057:
058:            /** name changed? */
059:            private boolean name;
060:
061:            /** Creates new FileStatusEvent
062:             * @param fs filesystem that causes the event
063:             * @param files set of FileObjects that has been changed
064:             * @param icon has icon changed?
065:             * @param name has name changed?
066:             */
067:            public FileStatusEvent(FileSystem fs, java.util.Set files,
068:                    boolean icon, boolean name) {
069:                super (fs);
070:                this .files = files;
071:                this .icon = icon;
072:                this .name = name;
073:            }
074:
075:            /** Creates new FileStatusEvent
076:             * @param fs filesystem that causes the event
077:             * @param file file object that has been changed
078:             * @param icon has icon changed?
079:             * @param name has name changed?
080:             */
081:            public FileStatusEvent(FileSystem fs, FileObject file,
082:                    boolean icon, boolean name) {
083:                this (fs, java.util.Collections.singleton(file), icon, name);
084:            }
085:
086:            /** Creates new FileStatusEvent. This does not specify the
087:             * file that changed annotation, assuming that everyone should update
088:             * its annotation. Please notice that this can be time consuming
089:             * and should be fired only when really necessary.
090:             *
091:             * @param fs filesystem that causes the event
092:             * @param icon has icon changed?
093:             * @param name has name changed?
094:             */
095:            public FileStatusEvent(FileSystem fs, boolean icon, boolean name) {
096:                this (fs, (java.util.Set) null, icon, name);
097:            }
098:
099:            /** Getter for filesystem that caused the change.
100:             * @return filesystem
101:             */
102:            public FileSystem getFileSystem() {
103:                return (FileSystem) getSource();
104:            }
105:
106:            /** Is the change change of name?
107:             */
108:            public boolean isNameChange() {
109:                return name;
110:            }
111:
112:            /** Do the files changed their icons?
113:             */
114:            public boolean isIconChange() {
115:                return icon;
116:            }
117:
118:            /** Check whether the given file has been changed.
119:             * @param file file to check
120:             * @return true if the file has been affected by the change
121:             */
122:            public boolean hasChanged(FileObject file) {
123:                if (files == null) {
124:                    // all files on source filesystem are said to change
125:                    try {
126:                        return file.getFileSystem() == getSource();
127:                    } catch (FileStateInvalidException ex) {
128:                        // invalid files should not be changed
129:                        return false;
130:                    }
131:                } else {
132:                    // specified set of files, so check it
133:                    return files.contains(file);
134:                }
135:            }
136:        }
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