Mercurial > hg > Members > tatsuki > bench > jungle-core
view src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/store/impl/DefaultAttributes.java @ 23:3ef2a66a8c5d
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author | Shoshi TAMAKI |
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date | Thu, 10 Jan 2013 23:22:42 +0900 |
parents | df42dca47c3e |
children | ec033569ab8f |
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package jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.impl; import java.nio.ByteBuffer; import fj.Ord; import fj.data.Option; import fj.data.TreeMap; import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.core.Attributes; import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.trasnformer.EditableAttributes; import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.trasnformer.EditableNode; public class DefaultAttributes implements Attributes { private final TreeMap<String,ByteBuffer> attrs; private static final TreeMap<String,ByteBuffer> EMPTY = TreeMap.empty(Ord.stringOrd); public DefaultAttributes() { this(EMPTY); } private DefaultAttributes(TreeMap<String,ByteBuffer> _attrs) { attrs = _attrs; } public DefaultAttributes remove(String _key) { return new DefaultAttributes(attrs.delete(_key)); } public DefaultAttributes put(String _key,ByteBuffer _value) { return new DefaultAttributes(attrs.set(_key,_value)); } @Override public ByteBuffer get(String _key) { Option<ByteBuffer> result = attrs.get(_key); return result.isSome() ? result.some() : null; } }