--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/main/java/jp/ac/u_ryukyu/ie/cr/tatsuki/jungle/store/index/LoggingIndexAttributes.java	Fri Sep 12 14:37:09 2014 +0900
@@ -0,0 +1,79 @@
+package jp.ac.u_ryukyu.ie.cr.tatsuki.jungle.store.index;
+
+import java.nio.ByteBuffer;
+
+import fj.data.List;
+import fj.data.TreeMap;
+import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.impl.TreeNode;
+import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.impl.logger.LoggingAttributes;
+import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.impl.logger.LoggingNode;
+import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.impl.logger.OperationLog;
+import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.operations.DeleteAttributeOperation;
+import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.operations.NodeOperation;
+import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.operations.PutAttributeOperation;
+import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.util.DefaultEither;
+import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.util.Either;
+import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.util.Error;
+import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.util.Pair;
+
+public class LoggingIndexAttributes extends LoggingAttributes {
+
+	private final TreeNode wrap;
+	private final OperationLog log;
+	private TreeMap<String,List<TreeNode>> index;
+	
+	public LoggingIndexAttributes(TreeNode _wrap, OperationLog _log, TreeMap<String,List<TreeNode>> index) {
+		super(_wrap, _log);
+		this.wrap = _wrap;
+		this.log = _log;
+		this.index = index;
+	}
+
+	private Either<Error,Logging> edit(NodeOperation _op)
+	{
+		Either<Error,TreeNode> either = _op.invoke(wrap);
+		if(either.isA()){
+			return DefaultEither.newA(either.a());
+		}
+		
+		TreeNode newNode = either.b();
+		OperationLog newLog = log.add(_op);
+		Logging newLogNode = new LoggingNode(newNode,newLog);
+		
+		return DefaultEither.newB(newLogNode);
+	}
+
+	public Either<Error,Logging> delete(final String key)
+	{
+		DeleteAttributeOperation deleteAttribute = new DeleteAttributeOperation(key);
+		Either<Error, Logging> either = edit(deleteAttribute);
+		
+		if(either.isA())
+			return either;
+		
+		Logging logNode = either.b();
+		TreeNode node = logNode.getWrap();
+		OperationLog log = logNode.getOperationLog();
+		index = index.delete(key);
+		Logging logIndexNode = new LoggingIndexNode(node, log, index);
+		return DefaultEither.newB(logIndexNode);
+	}
+
+	public Either<Error,Logging> put(final String key,final ByteBuffer value)
+	{
+		PutAttributeOperation putAttribute = new PutAttributeOperation(key,value);
+		Either<Error, Logging> either = edit(putAttribute);
+		if(either.isA())
+			return either;
+		
+		Logging logNode = either.b();
+		TreeNode newNode = logNode.getWrap();
+		OperationLog newLog = logNode.getOperationLog();
+		String indexKey = new String(value.array());
+		List<TreeNode> list = index.get(indexKey).some();
+		list = list.cons(newNode);
+		index.set(indexKey, list);
+		Logging logIndexNode = new LoggingIndexNode(newNode, newLog, index);
+		return DefaultEither.newB(logIndexNode);
+	}
+}