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annotate src/org/tmatesoft/hg/internal/Lifecycle.java @ 709:497e697636fc

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Report merged lines as changed block if possible, not as a sequence of added/deleted blocks. To facilitate access to merge parent lines AddBlock got mergeLineAt() method that reports index of the line in the second parent (if any), while insertedAt() has been changed to report index in the first parent always
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Wed, 21 Aug 2013 16:23:27 +0200
parents d3ab16739736
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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.internal;
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18
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19 /**
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20 * EXPERIMENTAL.
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21 * Mix-in for RevlogStream.Inspector to get informed about start and end of the iteration
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22 *
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23 * @author Artem Tikhomirov
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24 * @author TMate Software Ltd.
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25 */
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26 @Experimental(reason="Experimenting whether such approach pays off")
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27 public interface Lifecycle {
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28
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29 /**
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30 * @param count approximate number of iterations.
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31 * @param callback callback to communicate with RevlogStream (now to stop iteration only)
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32 * @param token identifier of the process
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33 */
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34 public void start(int count, Callback callback, Object token);
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35
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36 /**
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37 * @param token identifier of the process, identical to the one passed in {@link #start(int, Callback, Object)} of this iteration
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38 */
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39 public void finish(Object token);
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40
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41 /**
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42 * Access to RevlogStream facilities.
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43 */
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44 interface Callback {
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45 void stop();
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46 }
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47
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48 class BasicCallback implements Callback {
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49 private boolean done = false;
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51 public void stop() {
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52 done = true;
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53 }
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54 public boolean isStopped() {
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55 return done;
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56 }
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57 }
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58 }