Mercurial > hg > Database > jungle-sharp

annotate Main/jungle-main/store/impl/logger/LoggingChildren.cs @ 35:f2ea780b3e80

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fix
author Kazuma Takeda
date Wed, 22 Feb 2017 16:30:19 +0900
parents 9588ad364fdd
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
20
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1 using System.Collections;
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2
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3 namespace JungleDB {
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4 public class LoggingChildren {
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5 private TreeNode wrap;
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6 private OperationLog log;
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7
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8 public LoggingChildren(TreeNode _wrap,OperationLog _log)
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9 {
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10 wrap = _wrap;
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11 log = _log;
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12 }
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13
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14 public int size()
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15 {
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16 Children children = wrap.getChildren();
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17 return children.size();
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18 }
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19
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20 public Either<Error,LoggingNode> edit(NodeOperation _op)
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21 {
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22 Either<Error,TreeNode> either = _op.invoke(wrap);
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23 if(either.isA()){
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24 return DefaultEither<Error,LoggingNode>.newA(either.a());
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25 }
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26
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27 TreeNode newWrap = either.b();
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28 OperationLog newLog = log.add(_op);
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29 LoggingNode newLoggingNode = new LoggingNode(newWrap,newLog);
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30 return DefaultEither<Error,LoggingNode>.newB(newLoggingNode);
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31 }
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32
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33 public Either<Error,LoggingNode> addNewChildAt(int _pos)
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34 {
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35 NodeOperation addNewChildAt = new AppendChildAtOperation(_pos);
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36 return edit(addNewChildAt);
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37 }
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38
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39 public Either<Error,LoggingNode> deleteChildAt(int _pos)
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40 {
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41 NodeOperation deleteChildAt = new DeleteChildAtOperation(_pos);
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42 return edit(deleteChildAt);
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43 }
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44
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45 public Either<Error,LoggingNode> at(int _pos)
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46 {
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47 Children children = wrap.getChildren();
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48 Either<Error,TreeNode> either = children.at(_pos);
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49 if(either.isA()){
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50 return DefaultEither<Error,LoggingNode>.newA(either.a());
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51 }
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52
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53 TreeNode node = either.b();
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54 LoggingNode logNode = new LoggingNode(node);
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55 return DefaultEither<Error,LoggingNode>.newB(logNode);
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56 }
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57
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58 }
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59 }