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1
5 package org.h2.schema;
6
7 import java.sql.SQLException  ;
8
9 import org.h2.engine.DbObject;
10 import org.h2.engine.Session;
11 import org.h2.expression.ValueExpression;
12 import org.h2.message.Message;
13 import org.h2.message.Trace;
14 import org.h2.table.Table;
15 import org.h2.value.Value;
16
17 public class Constant extends SchemaObject {
18
19 private Value value;
20 private ValueExpression expression;
21
22 public Constant(Schema schema, int id, String name) {
23 super(schema, id, name, Trace.SCHEMA);
24 }
25
26 public String getCreateSQLForCopy(Table table, String quotedName) {
27 throw Message.getInternalError();
28 }
29
30 public String getCreateSQL() {
31 StringBuffer buff = new StringBuffer ();
32 buff.append("CREATE CONSTANT ");
33 buff.append(getSQL());
34 buff.append(" VALUE ");
35 buff.append(value.getSQL());
36 return buff.toString();
37 }
38
39 public int getType() {
40 return DbObject.CONSTANT;
41 }
42
43 public void removeChildrenAndResources(Session session) throws SQLException {
44 invalidate();
45 }
46
47 public void checkRename() throws SQLException {
48 }
49
50 public void setValue(Value value) {
51 this.value = value;
52 expression = ValueExpression.get(value);
53 }
54
55 public ValueExpression getValue() {
56 return expression;
57 }
58
59 }
60 |
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