1 /*
2 * Copyright 2000-2004 Sun Microsystems, Inc. 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. Sun designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22 * CA 95054 USA or visit www.sun.com if you need additional information or
23 * have any questions.
24 */
25
26 package javax.imageio.spi;
27
28 /**
29 * An optional interface that may be provided by service provider
30 * objects that will be registered with a
31 * <code>ServiceRegistry</code>. If this interface is present,
32 * notification of registration and deregistration will be performed.
33 *
34 * @see ServiceRegistry
35 *
36 */
37 public interface RegisterableService {
38
39 /**
40 * Called when an object implementing this interface is added to
41 * the given <code>category</code> of the given
42 * <code>registry</code>. The object may already be registered
43 * under another category or categories.
44 *
45 * @param registry a <code>ServiceRegistry</code> where this
46 * object has been registered.
47 * @param category a <code>Class</code> object indicating the
48 * registry category under which this object has been registered.
49 */
50 void onRegistration(ServiceRegistry registry, Class<?> category);
51
52 /**
53 * Called when an object implementing this interface is removed
54 * from the given <code>category</code> of the given
55 * <code>registry</code>. The object may still be registered
56 * under another category or categories.
57 *
58 * @param registry a <code>ServiceRegistry</code> from which this
59 * object is being (wholly or partially) deregistered.
60 * @param category a <code>Class</code> object indicating the
61 * registry category from which this object is being deregistered.
62 */
63 void onDeregistration(ServiceRegistry registry, Class<?> category);
64 }
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