|
68
|
1 /*
|
|
|
2 Copyright (c) 2008 Franklin Schmidt <fschmidt@gmail.com>
|
|
|
3
|
|
|
4 Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
|
5 of this software and associated documentation files (the "Software"), to deal
|
|
|
6 in the Software without restriction, including without limitation the rights
|
|
|
7 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
|
8 copies of the Software, and to permit persons to whom the Software is
|
|
|
9 furnished to do so, subject to the following conditions:
|
|
|
10
|
|
|
11 The above copyright notice and this permission notice shall be included in
|
|
|
12 all copies or substantial portions of the Software.
|
|
|
13
|
|
|
14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
|
15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
|
16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
|
17 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
|
18 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
|
19 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
|
20 THE SOFTWARE.
|
|
|
21 */
|
|
|
22
|
|
|
23 package fschmidt.db.extras;
|
|
|
24
|
|
|
25 import java.sql.ResultSet;
|
|
|
26 import java.sql.SQLException;
|
|
|
27 import java.util.Iterator;
|
|
|
28 import java.util.NoSuchElementException;
|
|
|
29 import fschmidt.db.DbTable;
|
|
|
30 import fschmidt.db.SQLRuntimeException;
|
|
|
31
|
|
|
32
|
|
|
33 public final class DbIterator implements Iterator {
|
|
|
34 private final DbTable table;
|
|
|
35 private final ResultSet rs;
|
|
|
36 private Object obj = null;
|
|
|
37
|
|
|
38 public DbIterator(DbTable table,ResultSet rs) {
|
|
|
39 this.table = table;
|
|
|
40 this.rs = rs;
|
|
|
41 }
|
|
|
42
|
|
|
43 public boolean hasNext() {
|
|
|
44 if( obj != null )
|
|
|
45 return true;
|
|
|
46 try {
|
|
|
47 if( !rs.next() )
|
|
|
48 return false;
|
|
|
49 obj = table.getDbObject(rs);
|
|
|
50 return true;
|
|
|
51 } catch(SQLException e) {
|
|
|
52 throw new SQLRuntimeException(e);
|
|
|
53 }
|
|
|
54 }
|
|
|
55
|
|
|
56 public Object next() {
|
|
|
57 if( !hasNext() )
|
|
|
58 throw new NoSuchElementException();
|
|
|
59 return obj;
|
|
|
60 }
|
|
|
61
|
|
|
62 public void remove() {
|
|
|
63 throw new UnsupportedOperationException();
|
|
|
64 }
|
|
|
65 }
|
