Mercurial > hg > Members > kazuma > jungle-ormapper

comparison src/main/java/jp/ac/u_ryukyu/ie/cr/jungle/transaction/DefaultTreeNode.java @ 0:44465893e8b8

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
first Commit
author Kazuma
date Wed, 30 Nov 2016 01:47:55 +0900
parents
children
comparison
equal deleted inserted replaced
-1:000000000000 0:44465893e8b8
1 package jp.ac.u_ryukyu.ie.cr.jungle.transaction;
2
3
4 import jp.ac.u_ryukyu.ie.cr.jungle.data.list.List;
5 import jp.ac.u_ryukyu.ie.cr.jungle.store.impl.TreeNode;
6 import jp.ac.u_ryukyu.ie.cr.jungle.store.impl.TreeNodeChildren;
7 import jp.ac.u_ryukyu.ie.cr.jungle.util.Either;
8 import jp.ac.u_ryukyu.ie.cr.jungle.util.Error;
9 import jp.ac.u_ryukyu.ie.cr.jungle.data.treemap.TreeMap;
10
11 import java.nio.ByteBuffer;
12 import java.rmi.dgc.VMID;
13
14 public class DefaultTreeNode implements TreeNode {
15 private List<TreeNode> children;
16 private TreeMap<String, ByteBuffer> attrs;
17 final String nodeId = new VMID().toString();
18
19 private static final List<TreeNode> NIL_LIST = new List<>();
20
21 public DefaultTreeNode() {
22 this(NIL_LIST, new TreeMap<>());
23 }
24
25 public DefaultTreeNode(List<TreeNode> _children, TreeMap<String, ByteBuffer> _attrs) {
26 attrs = _attrs;
27 children = _children;
28 }
29
30 @Override
31 public DefaultTreeNodeChildren getChildren() {
32 return new DefaultTreeNodeChildren(children, attrs);
33 }
34
35 @Override
36 public DefaultTreeNodeAttribute getAttributes() {
37 return new DefaultTreeNodeAttribute(children, attrs);
38 }
39
40 @Override
41 public DefaultTreeNode createNewNode() {
42 return new DefaultTreeNode();
43 }
44
45 public DefaultTreeNode clone() {
46 return new DefaultTreeNode(children, attrs);
47 }
48
49 @Override
50 public Either<Error, TreeNode> appendRootNode() {
51 TreeNodeChildren newRootChildren = new DefaultTreeNodeChildren(NIL_LIST, new TreeMap<>());
52 Either<jp.ac.u_ryukyu.ie.cr.jungle.util.Error, TreeNode> either = newRootChildren.addNewChildAt(0,this);
53 return either;
54 }
55
56 @Override
57 public int compareTo(TreeNode o) {
58 return this.hashCode() - o.hashCode();
59 }
60 }