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1
5 package org.h2.value;
6
7 import java.sql.PreparedStatement  ;
8 import java.sql.SQLException ;
9
10 import org.h2.message.Message;
11
12 public class ValueArray extends Value {
13 private Value[] values;
14 private int hash;
15
16 public static ValueArray get(Value[] list) {
17 return new ValueArray(list);
18 }
19
20 private ValueArray(Value[] list) {
21 this.values = list;
22 }
23
24 public int hashCode() {
25 if (hash != 0) {
26 return hash;
27 }
28 int h = 1;
29 for (int i = 0; i < values.length;) {
30 h = h * 31 + values[i++].hashCode();
31 }
32 return hash = h;
33 }
34
35 public Value[] getList() {
36 return values;
37 }
38
39 public int compareTo(ValueArray other, CompareMode mode) throws SQLException {
40 for (int i = 0; i < values.length; i++) {
41 Value v1 = values[i];
42 Value v2 = other.values[i];
43 int comp = v1.compareTo(v2, mode);
44 if (comp != 0) {
45 return comp;
46 }
47 }
48 return 0;
49 }
50
51 public int getType() {
52 return Value.ARRAY;
53 }
54
55 public long getPrecision() {
56 return 0;
57 }
58
59 public String getString() throws SQLException {
60 StringBuffer buff = new StringBuffer ();
61 buff.append('(');
62 for (int i = 0; i < values.length; i++) {
63 if (i > 0) {
64 buff.append(", ");
65 }
66 buff.append(values[i].getString());
67 }
68 buff.append(')');
69 return buff.toString();
70 }
71
72
85 protected int compareSecure(Value o, CompareMode mode) throws SQLException {
86 ValueArray v = (ValueArray) o;
87 if (values == v.values) {
88 return 0;
89 }
90 if (values.length != v.values.length) {
91 return values.length > v.values.length ? 1 : -1;
92 }
93 for (int i = 0; i < values.length; i++) {
94 Value v1 = values[i];
95 Value v2 = v.values[i];
96 int c;
97 if (v1 == ValueNull.INSTANCE) {
98 c = v2 == ValueNull.INSTANCE ? 0 : -1;
99 } else if (v2 == ValueNull.INSTANCE) {
100 c = 1;
101 } else {
102 c = v1.compareSecure(v2, mode);
103 }
104 if (c != 0) {
105 return c;
106 }
107 }
108 return 0;
109 }
110
111 public Object getObject() throws SQLException {
112 Object [] list = new Object [values.length];
113 for (int i = 0; i < values.length; i++) {
114 list[i] = values[i].getObject();
115 }
116 return list;
117 }
118
119 public void set(PreparedStatement prep, int parameterIndex) throws SQLException {
120 throw Message.getUnsupportedException();
121 }
122
123 public String getSQL() {
124 StringBuffer buff = new StringBuffer ();
125 buff.append('(');
126 for (int i = 0; i < values.length; i++) {
127 if (i > 0) {
128 buff.append(", ");
129 }
130 buff.append(values[i].getSQL());
131 }
132 buff.append(')');
133 return buff.toString();
134 }
135
136 public int getDisplaySize() {
137 int size = 0;
138 for(int i=0; i<values.length; i++) {
139 size += values[i].getDisplaySize();
140 }
141 return size;
142 }
143
144 protected boolean isEqual(Value o) {
145 if(!(o instanceof ValueArray)) {
146 return false;
147 }
148 ValueArray v = (ValueArray) o;
149 if (values == v.values) {
150 return true;
151 }
152 if (values.length != v.values.length) {
153 return false;
154 }
155 for (int i = 0; i < values.length; i++) {
156 if(!values[i].isEqual(v.values[i])) {
157 return false;
158 }
159 }
160 return true;
161 }
162
163 }
164 |
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