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1
5 package org.h2.table;
6
7 import java.sql.SQLException  ;
8
9 import org.h2.engine.Session;
10 import org.h2.index.Index;
11 import org.h2.index.IndexType;
12 import org.h2.index.RangeIndex;
13 import org.h2.message.Message;
14 import org.h2.result.Row;
15 import org.h2.schema.Schema;
16 import org.h2.util.ObjectArray;
17 import org.h2.value.Value;
18
19 public class RangeTable extends Table {
20
21 public static final String NAME = "SYSTEM_RANGE";
22 private long min, max;
23
24 public RangeTable(Schema schema, long min, long max) throws SQLException {
25 super(schema, 0, NAME, true);
26 Column[] cols = new Column[]{
27 new Column("X", Value.LONG, 0, 0)
28 };
29 this.min = min;
30 this.max = max;
31 setColumns(cols);
32 }
33
34 public String getCreateSQL() {
35 return null;
36 }
37
38 public String getSQL() {
39 return NAME + "(" + min + ", " + max + ")";
40 }
41
42 public void lock(Session session, boolean exclusive) throws SQLException {
43 }
44
45 public void close(Session session) throws SQLException {
46 }
47
48 public void unlock(Session s) {
49 }
50
51 public boolean isLockedExclusively() {
52 return false;
53 }
54
55 public Index addIndex(Session session, String indexName, int indexId, Column[] cols, IndexType indexType, int headPos, String comment) throws SQLException {
56 throw Message.getUnsupportedException();
57 }
58
59 public void removeRow(Session session, Row row) throws SQLException {
60 throw Message.getUnsupportedException();
61 }
62
63 public void addRow(Session session, Row row) throws SQLException {
64 throw Message.getUnsupportedException();
65 }
66
67 public void checkSupportAlter() throws SQLException {
68 throw Message.getUnsupportedException();
69 }
70
71 public void checkRename() throws SQLException {
72 throw Message.getUnsupportedException();
73 }
74
75 public boolean canGetRowCount() {
76 return true;
77 }
78
79 public boolean canDrop() {
80 return false;
81 }
82
83 public int getRowCount() throws SQLException {
84 return (int)(max - min);
86 }
87
88 public String getTableType() {
89 throw Message.getInternalError();
90 }
91
92 public Index getScanIndex(Session session) throws SQLException {
93 return new RangeIndex(this, columns, min, max);
94 }
95
96 public ObjectArray getIndexes() {
97 return null;
98 }
99
100 public void truncate(Session session) throws SQLException {
101 throw Message.getUnsupportedException();
102 }
103
104 public long getMaxDataModificationId() {
105 return 0;
106 }
107
108 public Index getUniqueIndex() {
109 return null;
110 }
111
112 }
113 |
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