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1
21 package com.db4o;
22
23 import com.db4o.foundation.Tree;
24
25
28 public class TreeIntObject extends TreeInt {
29
30 public Object  _object;
31
32 public TreeIntObject(int a_key) {
33 super(a_key);
34 }
35
36 public TreeIntObject(int a_key, Object a_object) {
37 super(a_key);
38 _object = a_object;
39 }
40
41 public Object shallowClone() {
42 return shallowCloneInternal(new TreeIntObject(_key));
43 }
44
45 protected Tree shallowCloneInternal(Tree tree) {
46 TreeIntObject tio = (TreeIntObject) super.shallowCloneInternal(tree);
47 tio._object = _object;
48 return tio;
49 }
50
51 public Object getObject() {
52 return _object;
53 }
54
55 public void setObject(Object obj) {
56 _object = obj;
57 }
58
59 public Object read(YapReader a_bytes) {
60 int key = a_bytes.readInt();
61 Object obj = null;
62 if (_object instanceof TreeInt) {
63 obj = new TreeReader(a_bytes, (Readable ) _object).read();
64 } else {
65 obj = ((Readable ) _object).read(a_bytes);
66 }
67 return new TreeIntObject(key, obj);
68 }
69
70 public void write(YapReader a_writer) {
71 a_writer.writeInt(_key);
72 if (_object == null) {
73 a_writer.writeInt(0);
74 } else {
75 if (_object instanceof TreeInt) {
76 TreeInt.write(a_writer, (TreeInt) _object);
77 } else {
78 ((ReadWriteable) _object).write(a_writer);
79 }
80 }
81 }
82
83 public int ownLength() {
84 if (_object == null) {
85 return YapConst.INT_LENGTH * 2;
86 }
87 return YapConst.INT_LENGTH + ((Readable ) _object).byteCount();
88 }
89
90 boolean variableLength() {
91 return true;
92 }
93
94 }
95
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