Mercurial > jhg

annotate src/org/tmatesoft/hg/core/HgChangesetTreeHandler.java @ 347:8da7ade36c57

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Add specific IAE subclass to handle wrong (e.g. outdated after rollback) revisions
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Tue, 22 Nov 2011 05:25:57 +0100
parents a674b8590362
children 189dc6dc1c3e
rev   line source
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1 /*
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2 * Copyright (c) 2011 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 java.util.Collection;
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20
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21 import org.tmatesoft.hg.util.CancelledException;
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22 import org.tmatesoft.hg.util.Pair;
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23
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24 /**
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25 *
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26 * @author Artem Tikhomirov
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27 * @author TMate Software Ltd.
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28 */
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29 public interface HgChangesetTreeHandler {
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30 /**
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31 * @param entry access to various pieces of information about current tree node. Instances might be
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32 * reused across calls and shall not be kept by client's code
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33 */
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34 public void next(HgChangesetTreeHandler.TreeElement entry) throws CancelledException;
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35
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36 interface TreeElement {
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37 /**
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38 * Revision of the revlog being iterated. For example, when walking file history, return value represents file revisions.
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39 *
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40 * @return revision of the revlog being iterated.
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41 */
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42 public Nodeid fileRevision();
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43 /**
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44 * @return changeset associated with the current revision
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45 */
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46 public HgChangeset changeset();
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47
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48 /**
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49 * Lightweight alternative to {@link #changeset()}, identifies changeset in which current file node has been modified
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50 * @return changeset {@link Nodeid}
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51 */
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52 public Nodeid changesetRevision();
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53
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54 /**
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55 * Node, these are not necessarily in direct relation to parents of changeset from {@link #changeset()}
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56 * @return changesets that correspond to parents of the current file node, either pair element may be <code>null</code>.
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57 */
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58 public Pair<HgChangeset, HgChangeset> parents();
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59
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60 /**
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61 * Lightweight alternative to {@link #parents()}, give {@link Nodeid nodeids} only
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62 * @return two values, neither is <code>null</code>, use {@link Nodeid#isNull()} to identify parent not set
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63 */
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64 public Pair<Nodeid, Nodeid> parentRevisions();
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65
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66 public Collection<HgChangeset> children();
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67
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68 /**
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69 * Lightweight alternative to {@link #children()}.
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70 * @return never <code>null</code>
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71 */
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72 public Collection<Nodeid> childRevisions();
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73 }
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74 }