|
1
5 package org.h2.value;
6
7 import java.sql.PreparedStatement  ;
8 import java.sql.SQLException ;
9
10
13 public class ValueBoolean extends Value {
14 public static final int PRECISION = 1;
15
16 private Boolean value;
17
18 private static final ValueBoolean TRUE = new ValueBoolean(true);
19 private static final ValueBoolean FALSE = new ValueBoolean(false);
20
21 private ValueBoolean(boolean value) {
22 this.value = Boolean.valueOf(""+value);
23 }
24
25 public int getType() {
26 return Value.BOOLEAN;
27 }
28
29 public String getSQL() {
30 return getString();
31 }
32
33 public String getString() {
34 return value.booleanValue() ? "TRUE" : "FALSE";
35 }
36
37 public Value negate() throws SQLException {
38 return value.booleanValue() ? FALSE : TRUE;
39 }
40
41 public Boolean getBoolean() {
42 return value;
43 }
44
45 protected int compareSecure(Value o, CompareMode mode) {
46 boolean v2 = ((ValueBoolean) o).value.booleanValue();
47 boolean v = value.booleanValue();
48 return (v == v2) ? 0 : (v ? 1 : -1);
49 }
50
51 public long getPrecision() {
52 return PRECISION;
53 }
54
55 public int hashCode() {
56 return value.booleanValue() ? 1 : 0;
57 }
58
59 public Object getObject() {
60 return value;
61 }
62
63 public void set(PreparedStatement prep, int parameterIndex) throws SQLException {
64 prep.setBoolean(parameterIndex, value.booleanValue());
65 }
66
67 public static ValueBoolean get(boolean b) {
68 return b ? TRUE : FALSE;
69 }
70
71
75 public int getDisplaySize() {
76 return "FALSE".length();
77 }
78
79 protected boolean isEqual(Value v) {
80 return v instanceof ValueBoolean && value.booleanValue() == ((ValueBoolean)v).value.booleanValue();
81 }
82
83 }
84 |
Popular Tags |
Java API By Example, From Geeks To Geeks.