01: /*
02: * WebSphinx web-crawling toolkit
03: *
04: * Copyright (c) 1998-2002 Carnegie Mellon University. All rights
05: * reserved.
06: *
07: * Redistribution and use in source and binary forms, with or without
08: * modification, are permitted provided that the following conditions
09: * are met:
10: *
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: *
14: * 2. Redistributions in binary form must reproduce the above copyright
15: * notice, this list of conditions and the following disclaimer in
16: * the documentation and/or other materials provided with the
17: * distribution.
18: *
19: * THIS SOFTWARE IS PROVIDED BY CARNEGIE MELLON UNIVERSITY ``AS IS'' AND
20: * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21: * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY
23: * NOR ITS EMPLOYEES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25: * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29: * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30: *
31: */
32:
33: package websphinx;
34:
35: /**
36: * Crawl event listener.
37: */
38: public interface CrawlListener {
39: /**
40: * Notify that the crawler started.
41: */
42: public abstract void started(CrawlEvent event);
43:
44: /**
45: * Notify that the crawler ran out of links to crawl
46: */
47: public abstract void stopped(CrawlEvent event);
48:
49: /**
50: * Notify that the crawler's state was cleared.
51: */
52: public abstract void cleared(CrawlEvent event);
53:
54: /**
55: * Notify that the crawler timed out.
56: */
57: public abstract void timedOut(CrawlEvent event);
58:
59: /**
60: * Notify that the crawler was paused.
61: */
62: public abstract void paused(CrawlEvent event);
63:
64: }
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