1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
|
/* -*- Mode: Vala; indent-tabs-mode: t; c-basic-offset: 4; tab-width: 4 -*- */
/*
* libgdadata
* Copyright (C) Daniel Espinosa Ortiz 2011 <esodan@gmail.com>
*
* libgda is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* libgda is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
using Gee;
using Gda;
namespace GdaData {
public class RecordCollectionIterator : Object, Traversable<DbRecord>, Iterator<DbRecord>
{
private DataModelIter _iter;
private DbTable _table;
public RecordCollectionIterator (DataModelIter iter, DbTable table)
{
_iter = iter;
_table = table;
}
public new bool @foreach (Gee.ForallFunc<DbRecord> f)
{
var r = this.get ();
bool ret = f(r);
if (ret && this.next ())
return true;
else
return false;
}
// Iterator Interface
public new DbRecord @get ()
{
var r = new Record ();
r.connection = _table.connection;
r.table = _table;
try {
for (int c = 0; c < _iter.data_model.get_n_columns (); c++) {
r.set_field_value (_iter.data_model.get_column_name (c), _iter.get_value_at (c));
}
}
catch (Error e) { GLib.message (e.message); }
return r;
}
public bool has_next ()
{
return _iter.current_row + 1 <= _iter.data_model.get_n_rows () ? true : false;
}
public bool next ()
{
if (this.has_next ())
return _iter.move_next ();
else
return false;
}
public void remove ()
{
try { _iter.data_model.remove_row (_iter.current_row); }
catch (Error e) { GLib.message (e.message); }
}
public bool read_only
{
get {
if (_iter.data_model is DataProxy)
return ((DataProxy)_iter.data_model).is_read_only ();
else
return false;
}
}
public bool valid {
get {
return _iter.is_valid ();
}
}
}
}
|
