Showing the changes to java/pkg/java/nio/file/StandardWatchEventKinds.java (1 of 18352 files). Show all
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| 1 | +/* | |
| 2 | + * Copyright (c) 2007, 2009, Oracle and/or its affiliates. All rights reserved. | |
| 3 | + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 | + * | |
| 5 | + * This code is free software; you can redistribute it and/or modify it | |
| 6 | + * under the terms of the GNU General Public License version 2 only, as | |
| 7 | + * published by the Free Software Foundation. Oracle designates this | |
| 8 | + * particular file as subject to the "Classpath" exception as provided | |
| 9 | + * by Oracle in the LICENSE file that accompanied this code. | |
| 10 | + * | |
| 11 | + * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 12 | + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 | + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 | + * version 2 for more details (a copy is included in the LICENSE file that | |
| 15 | + * accompanied this code). | |
| 16 | + * | |
| 17 | + * You should have received a copy of the GNU General Public License version | |
| 18 | + * 2 along with this work; if not, write to the Free Software Foundation, | |
| 19 | + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 20 | + * | |
| 21 | + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 | + * or visit www.oracle.com if you need additional information or have any | |
| 23 | + * questions. | |
| 24 | + */ | |
| 25 | + | |
| 26 | +package java.nio.file; | |
| 27 | + | |
| 28 | +/** | |
| 29 | + * Defines the <em>standard</em> event kinds. | |
| 30 | + * | |
| 31 | + * @since 1.7 | |
| 32 | + */ | |
| 33 | + | |
| 34 | +public final class StandardWatchEventKinds { | |
| 35 | + private StandardWatchEventKinds() { } | |
| 36 | + | |
| 37 | + /** | |
| 38 | + * A special event to indicate that events may have been lost or | |
| 39 | + * discarded. | |
| 40 | + * | |
| 41 | + * <p> The {@link WatchEvent#context context} for this event is | |
| 42 | + * implementation specific and may be {@code null}. The event {@link | |
| 43 | + * WatchEvent#count count} may be greater than {@code 1}. | |
| 44 | + * | |
| 45 | + * @see WatchService | |
| 46 | + */ | |
| 47 | + public static final WatchEvent.Kind<Object> OVERFLOW = | |
| 48 | + new StdWatchEventKind<Object>("OVERFLOW", Object.class); | |
| 49 | + | |
| 50 | + /** | |
| 51 | + * Directory entry created. | |
| 52 | + * | |
| 53 | + * <p> When a directory is registered for this event then the {@link WatchKey} | |
| 54 | + * is queued when it is observed that an entry is created in the directory | |
| 55 | + * or renamed into the directory. The event {@link WatchEvent#count count} | |
| 56 | + * for this event is always {@code 1}. | |
| 57 | + */ | |
| 58 | + public static final WatchEvent.Kind<Path> ENTRY_CREATE = | |
| 59 | + new StdWatchEventKind<Path>("ENTRY_CREATE", Path.class); | |
| 60 | + | |
| 61 | + /** | |
| 62 | + * Directory entry deleted. | |
| 63 | + * | |
| 64 | + * <p> When a directory is registered for this event then the {@link WatchKey} | |
| 65 | + * is queued when it is observed that an entry is deleted or renamed out of | |
| 66 | + * the directory. The event {@link WatchEvent#count count} for this event | |
| 67 | + * is always {@code 1}. | |
| 68 | + */ | |
| 69 | + public static final WatchEvent.Kind<Path> ENTRY_DELETE = | |
| 70 | + new StdWatchEventKind<Path>("ENTRY_DELETE", Path.class); | |
| 71 | + | |
| 72 | + /** | |
| 73 | + * Directory entry modified. | |
| 74 | + * | |
| 75 | + * <p> When a directory is registered for this event then the {@link WatchKey} | |
| 76 | + * is queued when it is observed that an entry in the directory has been | |
| 77 | + * modified. The event {@link WatchEvent#count count} for this event is | |
| 78 | + * {@code 1} or greater. | |
| 79 | + */ | |
| 80 | + public static final WatchEvent.Kind<Path> ENTRY_MODIFY = | |
| 81 | + new StdWatchEventKind<Path>("ENTRY_MODIFY", Path.class); | |
| 82 | + | |
| 83 | + private static class StdWatchEventKind<T> implements WatchEvent.Kind<T> { | |
| 84 | + private final String name; | |
| 85 | + private final Class<T> type; | |
| 86 | + StdWatchEventKind(String name, Class<T> type) { | |
| 87 | + this.name = name; | |
| 88 | + this.type = type; | |
| 89 | + } | |
| 90 | + @Override public String name() { return name; } | |
| 91 | + @Override public Class<T> type() { return type; } | |
| 92 | + @Override public String toString() { return name; } | |
| 93 | + } | |
| 94 | +} | |