75d24c15
 yangbin
123
|
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
|
/*************************************************************************
*
* Copyright 2016 Realm Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
**************************************************************************/
#ifndef REALM_COLUMN_BINARY_HPP
#define REALM_COLUMN_BINARY_HPP
#include <realm/bplustree.hpp>
#include <realm/array_binary.hpp>
#include <realm/array_blobs_small.hpp>
#include <realm/array_blobs_big.hpp>
namespace realm {
class BinaryColumn : public BPlusTree<BinaryData> {
public:
using BPlusTree::BPlusTree;
BinaryData get_at(size_t ndx, size_t& pos) const noexcept;
};
class BinaryIterator {
public:
BinaryIterator()
{
}
// TODO: When WriteLogCollector is removed, there is no need for this
BinaryIterator(BinaryData binary)
: m_binary(binary)
{
}
BinaryIterator(const BinaryColumn* col, size_t ndx)
: m_binary_col(col)
, m_ndx(ndx)
{
}
BinaryData get_next() noexcept
{
if (!end_of_data) {
if (m_binary_col) {
BinaryData ret = m_binary_col->get_at(m_ndx, m_pos);
end_of_data = (m_pos == 0);
return ret;
}
else if (!m_binary.is_null()) {
end_of_data = true;
return m_binary;
}
}
return {};
}
private:
bool end_of_data = false;
const BinaryColumn* m_binary_col = nullptr;
size_t m_ndx = 0;
size_t m_pos = 0;
BinaryData m_binary;
};
} // namespace realm
#endif // REALM_COLUMN_BINARY_HPP
|
