|
1
21 package com.db4o;
22
23 import com.db4o.foundation.*;
24 import com.db4o.reflect.ReflectClass;
25
26
27
30 public class YInt extends YapJavaClass {
31
32 private static final Integer  i_primitive = new Integer (0);
33
34 public YInt(YapStream stream) {
35 super(stream);
36 }
37
38 public Object coerce(ReflectClass claxx, Object obj) {
39 return Coercion4.toInt(obj);
40 }
41
42 public Object defaultValue(){
43 return i_primitive;
44 }
45
46 public int getID() {
47 return 1;
48 }
49
50 protected Class primitiveJavaClass() {
51 return int.class;
52 }
53
54 public int linkLength() {
55 return YapConst.INT_LENGTH;
56 }
57
58 public static int max(int x, int y){
59 return (x < y) ? y : x;
60 }
61
62 Object primitiveNull() {
63 return i_primitive;
64 }
65
66 Object read1(YapReader a_bytes) {
67 return new Integer (a_bytes.readInt());
68 }
69
70 static final int readInt(YapReader a_bytes) {
71 if (Deploy.debug) {
72 int ret = 0;
73 a_bytes.readBegin(YapConst.YAPINTEGER);
74 if (Deploy.debugLong) {
75 ret =
76 Integer.valueOf(new YapStringIO().read(a_bytes, YapConst.INTEGER_BYTES).trim())
77 .intValue();
78 } else {
79 for (int i = 0; i < YapConst.INTEGER_BYTES; i++) {
80 ret = (ret << 8) + (a_bytes._buffer[a_bytes._offset++] & 0xff);
81 }
82 }
83 a_bytes.readEnd();
84 return ret;
85 }
86 return a_bytes.readInt();
87 }
88
89 public void write(Object obj, YapReader writer) {
90 write(((Integer ) obj).intValue(), writer);
91 }
92
93 public void write(int intValue, YapReader writer) {
94 writeInt(intValue, writer);
95 }
96
97 static final void writeInt(int a_int, YapReader a_bytes) {
98 if (Deploy.debug) {
99 a_bytes.writeBegin(YapConst.YAPINTEGER);
100 if (Deploy.debugLong) {
101 String l_s = " " + new Integer (a_int).toString();
102 new YapStringIO().write(
103 a_bytes,
104 l_s.substring(l_s.length() - YapConst.INTEGER_BYTES));
105 } else {
106 for (int i = YapConst.WRITE_LOOP; i >= 0; i -= 8) {
107 a_bytes._buffer[a_bytes._offset++] = (byte) (a_int >> i);
108 }
109 }
110 a_bytes.writeEnd();
111 } else {
112 a_bytes.writeInt(a_int);
113 }
114 }
115
116
118 private int i_compareTo;
119
120 protected final int val(Object obj) {
121 return ((Integer ) obj).intValue();
122 }
123
124 public int compareTo(int other){
125 return other - i_compareTo;
126 }
127
128 public void prepareComparison(int i) {
129 i_compareTo = i;
130 }
131
132 void prepareComparison1(Object obj) {
133 prepareComparison(val(obj));
134 }
135
136 public Object current1(){
137 return new Integer (currentInt());
138 }
139
140 public int currentInt(){
141 return i_compareTo;
142 }
143
144 boolean isEqual1(Object obj) {
145 return obj instanceof Integer && val(obj) == i_compareTo;
146 }
147
148 boolean isGreater1(Object obj) {
149 return obj instanceof Integer && val(obj) > i_compareTo;
150 }
151
152 boolean isSmaller1(Object obj) {
153 return obj instanceof Integer && val(obj) < i_compareTo;
154 }
155
156 public void defragIndexEntry(ReaderPair readers) {
157 readers.incrementIntSize();
158 }
159 } |
Popular Tags |
Java API By Example, From Geeks To Geeks.