# HG changeset patch
# User Shoshi TAMAKI
# Date 1358351045 -32400
# Node ID dd7776c8b6d5540f1e448219d7c2a4a2679d813c
# Parent  418088ca2b30ab4037cbfbc7681239de1038d7a5
commit

diff -r 418088ca2b30 -r dd7776c8b6d5 src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/persistent/DefaultChangeListReader.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/persistent/DefaultChangeListReader.java	Thu Jan 17 00:44:05 2013 +0900
@@ -0,0 +1,32 @@
+package jp.ac.u_ryukyu.ie.cr.shoshi.jungle.persistent;
+
+import java.nio.ByteBuffer;
+import java.nio.MappedByteBuffer;
+import java.nio.channels.FileChannel;
+
+// not thread safe
+public class DefaultChangeListReader implements ChangeListReader
+{
+	private long pos;
+	private ByteBuffer buf;
+	private FileChannel ch;
+	
+	DefaultChangeListReader(FileChannel _ch,ByteBuffer _buf,long _pos)
+	{
+		pos = _pos;
+		buf = _buf;
+		ch = _ch;
+	}
+
+	@Override
+	public ChangeListReader newReader()
+	{
+		return new DefaultChangeListReader(ch,buf.asReadOnlyBuffer(),pos);
+	}
+
+	@Override
+	public ChangeList read()
+	{
+		return null;
+	}
+}
diff -r 418088ca2b30 -r dd7776c8b6d5 src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/persistent/DefaultChangeListWriter.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/persistent/DefaultChangeListWriter.java	Thu Jan 17 00:44:05 2013 +0900
@@ -0,0 +1,5 @@
+package jp.ac.u_ryukyu.ie.cr.shoshi.jungle.persistent;
+
+public class DefaultChangeListWriter {
+
+}
diff -r 418088ca2b30 -r dd7776c8b6d5 src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/persistent/DefaultJournal.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/persistent/DefaultJournal.java	Thu Jan 17 00:44:05 2013 +0900
@@ -0,0 +1,170 @@
+package jp.ac.u_ryukyu.ie.cr.shoshi.jungle.persistent;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.RandomAccessFile;
+import java.nio.ByteBuffer;
+import java.nio.MappedByteBuffer;
+import java.nio.channels.FileChannel;
+import java.nio.channels.FileChannel.MapMode;
+import java.nio.channels.WritableByteChannel;
+
+import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.operations.Operation;
+import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.util.Either;
+import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.util.Error;
+
+/*
+ * text based journal.
+ * 
+ * non terminal symbols
+ * 
+ * JOURNAL => CHANGELISTS
+ * CHANGE_LISTS => CHANGE_LIST | CHANGE_LISTS
+ * CHANGE_LISTS => *EMPTY*
+ * 
+ * CHANGE_LIST => OPERATIONS
+ * OPERATIONS => OPERATION CR | OPERATIONS
+ * OPERATIONS => *EMPTY*
+
+ * OPERATION => APPEND_CHILD | DELETE_CHILD | PUT_ATTRIBUTE | DELETE_ATTRIBUTE | COMMIT
+ * APPEND_CHILD => APPEND_CHILD_ID NODE_PATH INSERT_POSITION
+ * DELETE_CHILD => DELETE_CHILD_ID NODE_PATH DELETE_POSITION
+ * PUT_ATTRIBUTE => PUT_ATTRIBUTE_ID NODE_PATH KEY VALUE
+ * DELETE_ATTRIBUTE => DELTE_ATTRIBUTE_ID NODE_PATH KEY
+ * COMMIT => COMMIT_ID
+ * 
+ * NODE_PATH => POSITION "." NODE_PATH | POSITION
+ * 
+ * terminal symbols
+ * 
+ * APPEND_CHILD_ID = "APPEND_CHILD"
+ * DELETE_CHILD_ID = "DELETE_CHILD"
+ * PUT_ATTRIBUTE_ID = "PUT_ATTRIBUTE"
+ * SET_ATTRIBUTE_ID = "SET_ATTRIBUTE"
+ * COMMIT_ID => "COMMIT"
+ * CR => \n
+ * INSERT_POSITION => INTEGER
+ * DELETE_POSITION => INTEGER
+ * KEY => "*"
+ * VALUE => "*"
+ * 
+ */
+
+public class DefaultJournal implements Journal
+{
+	private final ChangeListWriter writer;
+	
+	public static void main(String _args[]) throws Exception
+	{
+		RandomAccessFile f = new RandomAccessFile("./miscs/1.dat","rw");
+		f.setLength(20);
+		MappedByteBuffer a = f.getChannel().map(MapMode.READ_WRITE,0,10);
+		MappedByteBuffer b = f.getChannel().map(MapMode.READ_WRITE,10,10);
+		f.setLength(30);
+		MappedByteBuffer c = f.getChannel().map(MapMode.READ_WRITE,20,10);
+		
+		a.putInt(1);
+		b.putInt(1);
+		c.putInt(2);
+		a.force();
+		b.force();
+		c.force();
+	
+		System.out.println(b.capacity());
+		MappedByteBuffer d = f.getChannel().map(MapMode.READ_WRITE,50,10);
+		d.putInt(2);
+		d.force();
+		System.out.println(d.getInt());
+	}
+	
+	public static final int READ_BUFFER_SIZE = 1000000;  // 1MB
+	public static final int WRITE_BUFFER_SIZE = 1000000; // 1MB
+	
+	
+	private DefaultJournal()
+	{
+		
+	}
+	
+	public static Either<Error,DefaultJournal> newInstance(String _fileName)
+	{
+		RandomAccessFile journal = null;
+		try{
+			journal = new RandomAccessFile(_fileName,"rw");
+			FileChannel ch = journal.getChannel();
+			long length = journal.length();
+			ByteBuffer readBuf = ch.map(MapMode.READ_ONLY,0,READ_BUFFER_SIZE);
+			ByteBuffer writeBuf = ch.map(MapMode.READ_WRITE,length,WRITE_BUFFER_SIZE);
+			
+			ChangeListReader reader = new DefaultChangeListReader(ch);
+			ChangeListWriter writer = new DefaultChangeListWriter(ch);
+			
+		}catch(FileNotFoundException _e){
+			_e.printStackTrace();
+			return null; // should return Error here.
+		}catch(IOException _e){
+			_e.printStackTrace();
+		}
+		return null;
+	}
+	
+	private static class Writer implements ChangeListWriter
+	{
+		
+	}
+
+	@Override
+	public ChangeListReader getReader()
+	{
+		return null;
+	}
+
+	@Override
+	public ChangeListWriter getWriter()
+	{
+		return writer;
+	}
+	
+	public interface OperationParser<T extends Operation>
+	{
+		T parse(String _line);
+	}
+
+	public static enum TagID
+	{
+		APPEND_CHILD(from16(0x05)),
+		DELETE_CHILD(from16(0x04)),
+		PUT_ATTRIBUTE(from16(0x03)),
+		DELETE_ATTRIBUTE(from16(0x02)),
+		COMMIT(from16(0x01));
+		
+		public static ByteBuffer from16(int... _is)
+		{
+			ByteBuffer buf = ByteBuffer.allocate(_is.length);
+			for(int i : _is){
+				buf.put((byte)i);
+			}
+			
+			buf.rewind();
+			return buf;
+		}
+		
+		private final ByteBuffer id;
+		
+		public TagID(ByteBuffer _id)
+		{
+			id = _id;
+		}
+		
+		public ByteBuffer getID()
+		{
+			return id;
+		}
+	};
+	
+	private static interface Parser 
+	{
+		public Either<Erorr,Object> parse(ByteBuffer _buf);
+	}
+}
diff -r 418088ca2b30 -r dd7776c8b6d5 src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/persistent/Journal.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/persistent/Journal.java	Thu Jan 17 00:44:05 2013 +0900
@@ -0,0 +1,7 @@
+package jp.ac.u_ryukyu.ie.cr.shoshi.jungle.persistent;
+
+public interface Journal
+{
+	public ChangeListReader getReader();
+	public ChangeListWriter getWriter();
+}
diff -r 418088ca2b30 -r dd7776c8b6d5 src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/persistent/PersistentProvider.java
--- a/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/persistent/PersistentProvider.java	Wed Jan 16 03:23:57 2013 +0900
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,7 +0,0 @@
-package jp.ac.u_ryukyu.ie.cr.shoshi.jungle.persistent;
-
-public interface PersistentProvider
-{
-	public ChangeListReader getReader();
-	public ChangeListWriter getWriter();
-}
diff -r 418088ca2b30 -r dd7776c8b6d5 src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/store/impl/DefaultChangeSet.java
--- a/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/store/impl/DefaultChangeSet.java	Wed Jan 16 03:23:57 2013 +0900
+++ b/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/store/impl/DefaultChangeSet.java	Thu Jan 17 00:44:05 2013 +0900
@@ -1,6 +1,5 @@
 package jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.impl;
 
-import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.core.Tree;
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.persistent.ChangeList;
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.ChangeSet;
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.operations.Operation;
@@ -12,11 +11,11 @@
 	private final long revision;
 	
 	private final ChangeList changeList;
-	private final DefaultTree tree;
+	private final DefaultNode root;
 	
-	public DefaultChangeSet(DefaultTree _tree,ChangeList _changeList,String _uuid,long _revision,ChangeSet _prev)
+	public DefaultChangeSet(DefaultNode _root,ChangeList _changeList,String _uuid,long _revision,ChangeSet _prev)
 	{
-		tree = _tree;
+		root = _root;
 		uuid = _uuid;
 		revision = _revision;
 		prev = _prev;
@@ -48,9 +47,9 @@
 	}
 
 	@Override
-	public DefaultTree getTree()
+	public DefaultNode getRoot()
 	{
-		return tree;
+		return root;
 	}
 
 	@Override
diff -r 418088ca2b30 -r dd7776c8b6d5 src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/store/impl/DefaultChildren.java
--- a/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/store/impl/DefaultChildren.java	Wed Jan 16 03:23:57 2013 +0900
+++ b/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/store/impl/DefaultChildren.java	Thu Jan 17 00:44:05 2013 +0900
@@ -13,7 +13,7 @@
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.util.Error;
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.util.IterableWrapper;
 
-public class DefaultChildren implements EditableChildren
+public class DefaultChildren implements EditableChildren<DefaultNode>
 {
 	private final List<DefaultNode> children;
 	private final TreeMap<String,ByteBuffer> attrs;
@@ -46,7 +46,7 @@
 	}
 	
 	@Override
-	public Either<Error,EditableNode> addNewChildAt(int _pos)
+	public Either<Error,DefaultNode> addNewChildAt(int _pos)
 	{
 		if(!check(_pos)){
 			return DefaultEither.newA(OUT_OF_RANGE);
@@ -54,13 +54,13 @@
 		
 		P2<List<DefaultNode>,List<DefaultNode>> split = children.splitAt(_pos);
 		List<DefaultNode> newChildren = split._1().snoc(new DefaultNode()).append(split._2());
-		EditableNode newNode = new DefaultNode(newChildren,attrs);
+		DefaultNode newNode = new DefaultNode(newChildren,attrs);
 		
 		return DefaultEither.newB(newNode);
 	}
 	
 	@Override
-	public Either<Error,EditableNode> deleteChildAt(int _pos)
+	public Either<Error,DefaultNode> deleteChildAt(int _pos)
 	{
 		if(!check(_pos)){
 			return DefaultEither.newA(OUT_OF_RANGE);
@@ -69,7 +69,7 @@
 		P2<List<DefaultNode>,List<DefaultNode>> split = children.splitAt(_pos);
 		List<DefaultNode> newChildren = split._1().init().append(split._2());
 		
-		EditableNode newNode = new DefaultNode(newChildren,attrs);
+		DefaultNode newNode = new DefaultNode(newChildren,attrs);
 		
 		return DefaultEither.newB(newNode);
 	}
diff -r 418088ca2b30 -r dd7776c8b6d5 src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/store/impl/DefaultTree.java
--- a/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/store/impl/DefaultTree.java	Wed Jan 16 03:23:57 2013 +0900
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,21 +0,0 @@
-package jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.impl;
-
-import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.core.Tree;
-
-public class DefaultTree implements Tree
-{
-	private final DefaultNode root;
-	
-	public static final DefaultTree EMPTY = new DefaultTree();
-	
-	public DefaultTree()
-	{
-		root = new DefaultNode();
-	}
-	
-	@Override
-	public DefaultNode getRoot()
-	{
-		return root;
-	}
-}
diff -r 418088ca2b30 -r dd7776c8b6d5 src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/store/impl/DefaultTreeEditor.java
--- a/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/store/impl/DefaultTreeEditor.java	Wed Jan 16 03:23:57 2013 +0900
+++ b/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/store/impl/DefaultTreeEditor.java	Thu Jan 17 00:44:05 2013 +0900
@@ -2,11 +2,10 @@
 
 import java.nio.ByteBuffer;
 import java.util.Iterator;
-
 import fj.data.List;
+import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.core.Node;
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.persistent.ChangeListWriter;
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.NodePath;
-import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.TraversableTree;
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.TreeEditor;
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.TreeEditorError;
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.impl.logger.Logger;
@@ -37,7 +36,7 @@
 	}
 
 	@Override
-	public TraversableTree getTree()
+	public Node getRoot()
 	{
 		return null;
 	}
diff -r 418088ca2b30 -r dd7776c8b6d5 src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/store/trasnformer/NodeEditor.java
--- a/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/store/trasnformer/NodeEditor.java	Wed Jan 16 03:23:57 2013 +0900
+++ b/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/store/trasnformer/NodeEditor.java	Thu Jan 17 00:44:05 2013 +0900
@@ -6,4 +6,4 @@
 public interface NodeEditor
 {
 	public <T extends EditableNode<T>> Either<Error,T> edit(T _e);
-}
+}
\ No newline at end of file
diff -r 418088ca2b30 -r dd7776c8b6d5 src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/traverser/DefaultEvaluation.java
--- a/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/traverser/DefaultEvaluation.java	Wed Jan 16 03:23:57 2013 +0900
+++ b/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/traverser/DefaultEvaluation.java	Thu Jan 17 00:44:05 2013 +0900
@@ -1,11 +1,11 @@
 package jp.ac.u_ryukyu.ie.cr.shoshi.jungle.traverser;
 
-public class DefaultEvaluation<T extends TraversableNode<T>> implements Evaluation<T>
+public class DefaultEvaluation implements Evaluation
 {
 	private final Result result;
-	private final Evaluator<T> evaluator;
+	private final Evaluator evaluator;
 	
-	public DefaultEvaluation(Result _result,Evaluator<T> _evaluator)
+	public DefaultEvaluation(Result _result,Evaluator _evaluator)
 	{
 		result = _result;
 		evaluator = _evaluator;
@@ -18,7 +18,7 @@
 	}
 
 	@Override
-	public Evaluator<T> evaluator()
+	public Evaluator evaluator()
 	{
 		return evaluator;
 	}
diff -r 418088ca2b30 -r dd7776c8b6d5 src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/traverser/DefaultEvaluator.java
--- a/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/traverser/DefaultEvaluator.java	Wed Jan 16 03:23:57 2013 +0900
+++ b/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/traverser/DefaultEvaluator.java	Thu Jan 17 00:44:05 2013 +0900
@@ -3,7 +3,7 @@
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.NodePath;
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.util.Pair;
 
-public class DefaultEvaluator<T extends TraversableNode<T>> implements Evaluator<T>
+public class DefaultEvaluator implements Evaluator
 {
 	private final NodePath path;
 	
@@ -13,14 +13,14 @@
 	}
 	
 	@Override
-	public Evaluation<T> evaluate(T _current,int _pos)
+	public <T extends TraversableNode<T>> Evaluation evaluate(T _current,int _pos)
 	{
 		Pair<Integer,NodePath> pop = path.pop();
 		if(pop == null){
-			return new DefaultEvaluation<T>(Result.BREAK,null);
+			return new DefaultEvaluation(Result.BREAK,null);
 		}
 		
-		DefaultEvaluator<T> nextEvaluator = new DefaultEvaluator<T>(pop.right());
+		DefaultEvaluator nextEvaluator = new DefaultEvaluator(pop.right());
 		int head = pop.left();
 		
 		Result result = Result.CONTINUE;
@@ -28,6 +28,6 @@
 			result = Result.ACCEPT;
 		}
 		
-		return new DefaultEvaluation<T>(result,nextEvaluator);
+		return new DefaultEvaluation(result,nextEvaluator);
 	}
 }
diff -r 418088ca2b30 -r dd7776c8b6d5 src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/traverser/DefaultTraverser.java
--- a/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/traverser/DefaultTraverser.java	Wed Jan 16 03:23:57 2013 +0900
+++ b/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/traverser/DefaultTraverser.java	Thu Jan 17 00:44:05 2013 +0900
@@ -7,10 +7,10 @@
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.util.Error;
 import fj.data.List;
 
-public class DefaultTraverser<T extends TraversableNode<T>> implements Traverser<T>
+public class DefaultTraverser implements Traverser
 {
 	@Override
-	public Either<Error,Traversal<T>> traverse(final T _root,Evaluator<T> _evaluator)
+	public <T extends TraversableNode<T>> Either<Error,Traversal<T>> traverse(final T _root,Evaluator _evaluator)
 	{
 		TraversableChildren<T> wrapper = new TraversableChildren<T>(){
 			@Override
@@ -47,11 +47,11 @@
 		return DefaultEither.newB(traversal);
 	}
 	
-	private Either<Error,List<Direction<T>>> _traverse(TraversableChildren<T> _chs,Evaluator<T> _evaluator)
+	private <T extends TraversableNode<T>> Either<Error,List<Direction<T>>> _traverse(TraversableChildren<T> _chs,Evaluator _evaluator)
 	{
 		int pos = 0;
 		for(T ch : _chs){
-			Evaluation<T> e = _evaluator.evaluate(ch,pos);
+			Evaluation e = _evaluator.evaluate(ch,pos);
 			Result r = e.result();
 			if(r == Result.ACCEPT){
 				return _accept(ch,pos,e.evaluator());
@@ -73,7 +73,7 @@
 		return DefaultEither.newA(TraverserError.PATH_NOT_FOUND);
 	}
 	
-	private Either<Error,List<Direction<T>>> _accept(final T _current,final int _pos,Evaluator<T> _evaluator)
+	private <T extends TraversableNode<T>> Either<Error,List<Direction<T>>> _accept(final T _current,final int _pos,Evaluator _evaluator)
 	{
 		TraversableChildren<T> chs = _current.children();
 		Either<Error,List<Direction<T>>> either = _traverse(chs,_evaluator);
diff -r 418088ca2b30 -r dd7776c8b6d5 src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/traverser/Evaluation.java
--- a/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/traverser/Evaluation.java	Wed Jan 16 03:23:57 2013 +0900
+++ b/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/traverser/Evaluation.java	Thu Jan 17 00:44:05 2013 +0900
@@ -1,7 +1,7 @@
 package jp.ac.u_ryukyu.ie.cr.shoshi.jungle.traverser;
 
-public interface Evaluation<T extends TraversableNode<T>>
+public interface Evaluation
 {
 	public Result result();
-	public Evaluator<T> evaluator();
+	public Evaluator evaluator();
 }
diff -r 418088ca2b30 -r dd7776c8b6d5 src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/traverser/Evaluator.java
--- a/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/traverser/Evaluator.java	Wed Jan 16 03:23:57 2013 +0900
+++ b/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/traverser/Evaluator.java	Thu Jan 17 00:44:05 2013 +0900
@@ -1,6 +1,6 @@
 package jp.ac.u_ryukyu.ie.cr.shoshi.jungle.traverser;
 
-public interface Evaluator<T extends TraversableNode<T>>
+public interface Evaluator
 {
-	public Evaluation<T> evaluate(T _current,int _pos);
+	public <T extends TraversableNode<T>> Evaluation evaluate(T _current,int _pos);
 }
diff -r 418088ca2b30 -r dd7776c8b6d5 src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/traverser/Traversable.java
--- a/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/traverser/Traversable.java	Wed Jan 16 03:23:57 2013 +0900
+++ b/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/traverser/Traversable.java	Thu Jan 17 00:44:05 2013 +0900
@@ -5,5 +5,5 @@
 
 public interface Traversable<T extends TraversableNode<T>>
 {
-	public Either<Error,Traversal<T>> traverse(Evaluator<T> _e);
+	public Either<Error,Traversal<T>> traverse(Evaluator _e);
 }
diff -r 418088ca2b30 -r dd7776c8b6d5 src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/traverser/Traverser.java
--- a/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/traverser/Traverser.java	Wed Jan 16 03:23:57 2013 +0900
+++ b/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/traverser/Traverser.java	Thu Jan 17 00:44:05 2013 +0900
@@ -3,7 +3,7 @@
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.util.Either;
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.util.Error;
 
-public interface Traverser<T extends TraversableNode<T>>
+public interface Traverser
 {
-	public Either<Error,Traversal<T>> traverse(T _root,Evaluator<T> _evaluator);
+	public <T extends TraversableNode<T>> Either<Error,Traversal<T>> traverse(T _root,Evaluator _evaluator);
 }