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
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef _MDB_
#include "mdb.h"
#endif
#ifndef _MORK_
#include "mork.h"
#endif
#ifndef _MORKNODE_
#include "morkNode.h"
#endif
#ifndef _MORKENV_
#include "morkEnv.h"
#endif
#ifndef _MORKCURSOR_
#include "morkCursor.h"
#endif
#ifndef _MORKROWCELLCURSOR_
#include "morkRowCellCursor.h"
#endif
#ifndef _MORKSTORE_
#include "morkStore.h"
#endif
#ifndef _MORKROWOBJECT_
#include "morkRowObject.h"
#endif
#ifndef _MORKROW_
#include "morkRow.h"
#endif
//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
// ````` ````` ````` ````` `````
// { ===== begin morkNode interface =====
/*public virtual*/ void
morkRowCellCursor::CloseMorkNode(morkEnv* ev) // CloseRowCellCursor() only if open
{
if ( this->IsOpenNode() )
{
this->MarkClosing();
this->CloseRowCellCursor(ev);
this->MarkShut();
}
}
/*public virtual*/
morkRowCellCursor::~morkRowCellCursor() // CloseRowCellCursor() executed earlier
{
CloseMorkNode(mMorkEnv);
MORK_ASSERT(this->IsShutNode());
}
/*public non-poly*/
morkRowCellCursor::morkRowCellCursor(morkEnv* ev,
const morkUsage& inUsage,
nsIMdbHeap* ioHeap, morkRowObject* ioRowObject)
: morkCursor(ev, inUsage, ioHeap)
, mRowCellCursor_RowObject( 0 )
, mRowCellCursor_Col( 0 )
{
if ( ev->Good() )
{
if ( ioRowObject )
{
morkRow* row = ioRowObject->mRowObject_Row;
if ( row )
{
if ( row->IsRow() )
{
mCursor_Pos = -1;
mCursor_Seed = row->mRow_Seed;
morkRowObject::SlotStrongRowObject(ioRowObject, ev,
&mRowCellCursor_RowObject);
if ( ev->Good() )
mNode_Derived = morkDerived_kRowCellCursor;
}
else
row->NonRowTypeError(ev);
}
else
ioRowObject->NilRowError(ev);
}
else
ev->NilPointerError();
}
}
NS_IMPL_ISUPPORTS_INHERITED(morkRowCellCursor, morkCursor, nsIMdbRowCellCursor)
/*public non-poly*/ void
morkRowCellCursor::CloseRowCellCursor(morkEnv* ev)
{
if ( this->IsNode() )
{
mCursor_Pos = -1;
mCursor_Seed = 0;
morkRowObject::SlotStrongRowObject((morkRowObject*) 0, ev,
&mRowCellCursor_RowObject);
this->CloseCursor(ev);
this->MarkShut();
}
else
this->NonNodeError(ev);
}
// } ===== end morkNode methods =====
// ````` ````` ````` ````` `````
/*static*/ void
morkRowCellCursor::NilRowObjectError(morkEnv* ev)
{
ev->NewError("nil mRowCellCursor_RowObject");
}
/*static*/ void
morkRowCellCursor::NonRowCellCursorTypeError(morkEnv* ev)
{
ev->NewError("non morkRowCellCursor");
}
//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
// { ----- begin attribute methods -----
NS_IMETHODIMP
morkRowCellCursor::SetRow(nsIMdbEnv* mev, nsIMdbRow* ioRow)
{
nsresult outErr = NS_OK;
morkRow* row = 0;
morkEnv* ev = morkEnv::FromMdbEnv(mev);
if ( ev )
{
row = (morkRow *) ioRow;
morkStore* store = row->GetRowSpaceStore(ev);
if ( store )
{
morkRowObject* rowObj = row->AcquireRowObject(ev, store);
if ( rowObj )
{
morkRowObject::SlotStrongRowObject((morkRowObject*) 0, ev,
&mRowCellCursor_RowObject);
mRowCellCursor_RowObject = rowObj; // take this strong ref
mCursor_Seed = row->mRow_Seed;
row->GetCell(ev, mRowCellCursor_Col, &mCursor_Pos);
}
}
outErr = ev->AsErr();
}
return outErr;
}
NS_IMETHODIMP
morkRowCellCursor::GetRow(nsIMdbEnv* mev, nsIMdbRow** acqRow)
{
nsresult outErr = NS_OK;
nsIMdbRow* outRow = 0;
morkEnv* ev = morkEnv::FromMdbEnv(mev);
if ( ev )
{
morkRowObject* rowObj = mRowCellCursor_RowObject;
if ( rowObj )
outRow = rowObj->AcquireRowHandle(ev);
outErr = ev->AsErr();
}
if ( acqRow )
*acqRow = outRow;
return outErr;
}
// } ----- end attribute methods -----
// { ----- begin cell seeking methods -----
NS_IMETHODIMP
morkRowCellCursor::SeekCell(
nsIMdbEnv* mev, // context
mdb_pos inPos, // position of cell in row sequence
mdb_column* outColumn, // column for this particular cell
nsIMdbCell** acqCell)
{
NS_ASSERTION(false, "not implemented");
return NS_ERROR_NOT_IMPLEMENTED;
}
// } ----- end cell seeking methods -----
// { ----- begin cell iteration methods -----
NS_IMETHODIMP
morkRowCellCursor::NextCell( // get next cell in the row
nsIMdbEnv* mev, // context
nsIMdbCell** acqCell, // changes to the next cell in the iteration
mdb_column* outColumn, // column for this particular cell
mdb_pos* outPos)
{
morkEnv* ev = morkEnv::FromMdbEnv(mev);
mdb_column col = 0;
mdb_pos pos = mRowCellCursor_Col;
if ( pos < 0 )
pos = 0;
else
++pos;
morkCell* cell = mRowCellCursor_RowObject->mRowObject_Row->CellAt(ev, pos);
if ( cell )
{
col = cell->GetColumn();
*acqCell = mRowCellCursor_RowObject->mRowObject_Row->AcquireCellHandle(ev, cell, col, pos);
}
else
{
*acqCell = nullptr;
pos = -1;
}
if ( outPos )
*outPos = pos;
if ( outColumn )
*outColumn = col;
mRowCellCursor_Col = pos;
return NS_OK;
}
NS_IMETHODIMP
morkRowCellCursor::PickNextCell( // get next cell in row within filter set
nsIMdbEnv* mev, // context
nsIMdbCell* ioCell, // changes to the next cell in the iteration
const mdbColumnSet* inFilterSet, // col set of actual caller interest
mdb_column* outColumn, // column for this particular cell
mdb_pos* outPos)
// Note that inFilterSet should not have too many (many more than 10?)
// cols, since this might imply a potential excessive consumption of time
// over many cursor calls when looking for column and filter intersection.
{
NS_ASSERTION(false, "not implemented");
return NS_ERROR_NOT_IMPLEMENTED;
}
// } ----- end cell iteration methods -----
// } ===== end nsIMdbRowCellCursor methods =====
|
