-
Notifications
You must be signed in to change notification settings - Fork 71
/
Copy pathProgram.cs
111 lines (99 loc) · 3.31 KB
/
Program.cs
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
/*
* Copyright (C) 2005-2017 Christoph Rupp (chris@crupp.de).
*
* 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.
*
* See the file COPYING for License information.
*/
using System;
using System.Collections.Generic;
using System.Text;
using Upscaledb;
namespace SampleDb1
{
class Program
{
const int LOOP = 10;
static void Main(string[] args) {
byte[] key = new byte[5];
byte[] record = new byte[5];
Upscaledb.Environment env = new Upscaledb.Environment();
Database db = new Database();
/*
* first, create a new Database
*/
env.Create("test.db");
db = env.CreateDatabase(1);
/*
* now we can insert, delete or lookup values in the Database
*
* for our test program, we just insert a few values, then look them
* up, then delete them and try to look them up again (which will fail).
*/
for (int i = 0; i < LOOP; i++) {
key[0] = (byte)i;
record[0] = (byte)i;
db.Insert(key, record);
}
/*
* now look up all values
*/
for (int i = 0; i < LOOP; i++) {
key[0] = (byte)i;
byte[] r = db.Find(key);
/*
* check if the value is ok
*/
if (r[0] != (byte)i) {
Console.Out.WriteLine("db.Find() returned bad value");
return;
}
}
/*
* close the Database handle, then re-open it (just to demonstrate how
* to open a Database file)
*/
db.Close();
env.Close();
env.Open("test.db");
db = env.OpenDatabase(1);
/*
* now erase all values
*/
for (int i = 0; i < LOOP; i++) {
key[0] = (byte)i;
db.Erase(key);
}
/*
* once more we try to find all values... every db.Find() call must
* now fail with UPS_KEY_NOT_FOUND
*/
for (int i = 0; i < LOOP; i++) {
key[0] = (byte)i;
try {
byte[] r = db.Find(key);
}
catch (DatabaseException e) {
if (e.ErrorCode != UpsConst.UPS_KEY_NOT_FOUND) {
Console.Out.WriteLine("db.Find() returned error " + e);
return;
}
}
}
/*
* We're done! No need to close the Database handle - it's closed automatically
*/
Console.Out.WriteLine("Success!");
}
}
}