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annotate src/org/tmatesoft/hg/core/HgFileRenameHandlerMixin.java @ 694:7efabe0cddcf

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Speed up (a) file rename history to minimize file reads; (b) file.isCopy(int) to read metadata for few revisions at once (use pattern assumes earlier revisions are likely to be queried, too); (c) HgIgnore.isIgnored by caching matched initial fragments (to substitute more expensive Matcher.matches with cheaper HashMap.contains)
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Mon, 05 Aug 2013 17:42:10 +0200
parents 6526d8adbc0f
children
rev   line source
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1 /*
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2 * Copyright (c) 2012-2013 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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18
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19 import org.tmatesoft.hg.repo.HgRuntimeException;
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20 import org.tmatesoft.hg.util.Adaptable;
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22 /**
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23 * Addition to file history handlers (like {@link HgChangesetHandler} and {@link HgChangesetTreeHandler})
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24 * to receive notification about rename in the history of the file being walked.
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25 *
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26 * This mix-in shall be available from the host handler through the {@link Adaptable} mechanism, see
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27 * {@link Adaptable.Factory#getAdapter(Object, Class, Object)}. Hence, implementing
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28 * this interface in addition to host's would be the easiest way to achieve that.
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29 *
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30 * @author Artem Tikhomirov
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31 * @author TMate Software Ltd.
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32 */
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33 public interface HgFileRenameHandlerMixin {
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34 // XXX perhaps, should distinguish copy from rename? And what about merged revisions and following them?
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36 /**
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37 * @throws HgCallbackTargetException wrapper object for any exception user code may produce
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38 * @throws HgRuntimeException propagates library issues. <em>Runtime exception</em>
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39 */
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40 void copy(HgFileRevision from, HgFileRevision to) throws HgCallbackTargetException, HgRuntimeException;
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41 }