Mercurial > hg > Members > tatsuki > bench > jungle-core

annotate src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/store/trasnformer/PutAttribute.java @ 92:14ce7a0dedca

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Logging Node and Editor
author one
date Sat, 06 Sep 2014 05:03:10 +0900
parents fb1dc448ac8c
children ef68358ed0e8
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1 package jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.trasnformer;
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3 import java.nio.ByteBuffer;
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5 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.impl.TreeNode;
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6 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.impl.TreeNodeAttributes;
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7 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.impl.logger.DefaultOperationLog;
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8 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.impl.logger.OperationLog;
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9 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.operations.DeleteChildAtOperation;
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10 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.operations.NodeOperation;
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11 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.operations.PutAttributeOperation;
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12 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.util.DefaultEither;
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13 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.util.Either;
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14 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.util.Error;
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16 public class PutAttribute implements NodeEditor
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17 {
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18 private final String key;
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19 private final ByteBuffer value;
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20 private OperationLog log;
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22 public PutAttribute(String _key,ByteBuffer _value)
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23 {
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24 key = _key;
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25 value = _value;
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26 log = new DefaultOperationLog();
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27 }
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29 @Override
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30 public Either<Error,TreeNode> edit(TreeNode _e)
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31 {
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32 NodeOperation putAttributeOperation = new PutAttributeOperation(key,value);
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33 Either<Error,TreeNode> either = putAttributeOperation.invoke(_e);
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34 if(either.isA()){
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35 // error
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36 return either;
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37 }
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38 log = log.add(putAttributeOperation);
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39 return DefaultEither.newB(either.b());
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40 }
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42 @Override
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43 public OperationLog getLog() {
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44 return log;
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45 }
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46 }