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annotate src/org/tmatesoft/hg/internal/LifecycleProxy.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 1ee452f31187
children
rev   line source
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1 /*
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2 * Copyright (c) 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.internal;
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19 import org.tmatesoft.hg.util.Adaptable;
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21 /**
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22 * Save callback and delegate to another lifecycle instance, if any
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23 *
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24 * @author Artem Tikhomirov
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25 * @author TMate Software Ltd.
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26 */
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27 public class LifecycleProxy implements Lifecycle {
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29 private Callback lifecycleCallback;
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30 private Lifecycle target;
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32 public LifecycleProxy() {
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33 }
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35 public LifecycleProxy(Object delegate) {
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36 init(delegate);
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37 }
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40 public void start(int count, Callback callback, Object token) {
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41 lifecycleCallback = callback;
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42 if (target != null) {
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43 target.start(count, callback, token);
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44 }
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45 }
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47 public void finish(Object token) {
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48 if (target != null) {
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49 target.finish(token);
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50 }
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51 lifecycleCallback = null;
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52 }
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54 public void init(Object delegate) {
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55 target = Adaptable.Factory.getAdapter(delegate, Lifecycle.class, null);
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56 }
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58 public void stop() {
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59 assert lifecycleCallback != null;
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60 if (lifecycleCallback != null) {
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61 lifecycleCallback.stop();
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62 }
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63 }
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64 }