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95 lines
2.6 KiB
95 lines
2.6 KiB
/*
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* Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved.
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* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*/
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package java.nio.file;
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/**
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* Defines the <em>standard</em> event kinds.
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*
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* @since 1.7
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*/
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public final class StandardWatchEventKinds {
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private StandardWatchEventKinds() { }
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/**
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* A special event to indicate that events may have been lost or
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* discarded.
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*
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* <p> The {@link WatchEvent#context context} for this event is
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* implementation specific and may be {@code null}. The event {@link
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* WatchEvent#count count} may be greater than {@code 1}.
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*
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* @see WatchService
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*/
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public static final WatchEvent.Kind<Object> OVERFLOW =
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new StdWatchEventKind<Object>("OVERFLOW", Object.class);
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/**
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* Directory entry created.
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*
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* <p> When a directory is registered for this event then the {@link WatchKey}
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* is queued when it is observed that an entry is created in the directory
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* or renamed into the directory. The event {@link WatchEvent#count count}
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* for this event is always {@code 1}.
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*/
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public static final WatchEvent.Kind<Path> ENTRY_CREATE =
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new StdWatchEventKind<Path>("ENTRY_CREATE", Path.class);
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/**
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* Directory entry deleted.
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*
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* <p> When a directory is registered for this event then the {@link WatchKey}
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* is queued when it is observed that an entry is deleted or renamed out of
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* the directory. The event {@link WatchEvent#count count} for this event
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* is always {@code 1}.
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*/
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public static final WatchEvent.Kind<Path> ENTRY_DELETE =
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new StdWatchEventKind<Path>("ENTRY_DELETE", Path.class);
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/**
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* Directory entry modified.
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*
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* <p> When a directory is registered for this event then the {@link WatchKey}
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* is queued when it is observed that an entry in the directory has been
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* modified. The event {@link WatchEvent#count count} for this event is
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* {@code 1} or greater.
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*/
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public static final WatchEvent.Kind<Path> ENTRY_MODIFY =
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new StdWatchEventKind<Path>("ENTRY_MODIFY", Path.class);
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private static class StdWatchEventKind<T> implements WatchEvent.Kind<T> {
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private final String name;
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private final Class<T> type;
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StdWatchEventKind(String name, Class<T> type) {
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this.name = name;
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this.type = type;
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}
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@Override public String name() { return name; }
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@Override public Class<T> type() { return type; }
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@Override public String toString() { return name; }
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}
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}
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