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annotate src/org/tmatesoft/hg/core/HgChangesetHandler.java @ 495:abfbe81154b5

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Do not use exception when only metadata processing is needed. For hg4j repo, status 0:-1 changed from 500 to 60 ms
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Fri, 19 Oct 2012 16:03:21 +0200
parents 31a89587eb04
children 5dcb4581c8ef
rev   line source
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1 /*
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2 * Copyright (c) 2011-2012 TMate Software Ltd
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3 *
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4 * This program is free software; you can redistribute it and/or modify
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5 * it under the terms of the GNU General Public License as published by
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6 * the Free Software Foundation; version 2 of the License.
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7 *
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8 * This program is distributed in the hope that it will be useful,
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9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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11 * GNU General Public License for more details.
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12 *
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13 * For information on how to redistribute this software under
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14 * the terms of a license other than GNU General Public License
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15 * contact TMate Software at support@hg4j.com
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16 */
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17 package org.tmatesoft.hg.core;
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19 import org.tmatesoft.hg.internal.Callback;
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20 import org.tmatesoft.hg.util.Path;
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22 /**
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23 * Callback to process {@link HgChangeset changesets}.
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24 *
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25 * @author Artem Tikhomirov
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26 * @author TMate Software Ltd.
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27 */
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28 @Callback
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29 public interface HgChangesetHandler {
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31 /**
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32 * @param changeset descriptor of a change, not necessarily a distinct instance each time, {@link HgChangeset#clone() clone()} if need a copy.
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33 * @throws HgCallbackTargetException wrapper for any exception user code may produce
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34 */
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35 void cset(HgChangeset changeset) throws HgCallbackTargetException;
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38 /**
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39 * When {@link HgLogCommand} is executed against file, handler passed to {@link HgLogCommand#execute(HgChangesetHandler)} may optionally
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40 * implement this interface to get information about file renames. Method {@link #copy(HgFileRevision, HgFileRevision)} would
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41 * get invoked prior any changeset of the original file (if file history being followed) is reported via {@link #cset(HgChangeset)}.
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42 *
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43 * For {@link HgLogCommand#file(Path, boolean)} with renamed file path and follow argument set to false,
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44 * {@link #copy(HgFileRevision, HgFileRevision)} would be invoked for the first copy/rename in the history of the file, but not
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45 * followed by any changesets.
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46 */
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47 @Callback
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48 public interface WithCopyHistory extends HgChangesetHandler {
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49 // XXX perhaps, should distinguish copy from rename? And what about merged revisions and following them?
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51 /**
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52 * @throws HgCallbackTargetException wrapper object for any exception user code may produce
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53 */
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54 void copy(HgFileRevision from, HgFileRevision to) throws HgCallbackTargetException;
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55 }
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56 }