litesoft
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
|
package org.litesoft.sequences;
public interface SequenceSource
{
public void clearAllGroups();
public void clear( String pGroup );
public void preallocateNextSequenceNumbers( String pGroup, int pBlockSize, Long pRestartAt );
public long getNextSequenceNumber( String pGroup, Long pRestartAt );
public long getNextSequenceNumber( String pGroup );
public long getNextSequenceNumber( Class pGroup );
public static class Restart
{
public static boolean at( long pRetVal, Long pRestartAt )
{
return (pRestartAt != null) && LLat( pRetVal, pRestartAt );
}
private static boolean LLat( long pRetVal, long pRestartAt )
{
return (pRestartAt > 1) && (pRestartAt <= pRetVal);
}
}
public static final SequenceSource NULL = new SequenceSource()
{
private long mLastNumber = 0;
public void clearAllGroups()
{
}
public void clear( String pGroup )
{
}
public void preallocateNextSequenceNumbers( String pGroup, int pBlockSize, Long pRestartAt )
{
}
public synchronized long getNextSequenceNumber( String pGroup, Long pRestartAt )
{
long rv = ++mLastNumber;
if ( Restart.at( rv, pRestartAt ) )
{
rv = mLastNumber = 1;
}
return rv;
}
public long getNextSequenceNumber( String pGroup )
{
return getNextSequenceNumber( pGroup, null );
}
public long getNextSequenceNumber( Class pGroup )
{
return getNextSequenceNumber( pGroup.getName() );
}
};
}
|
Revision |
Author |
Commited |
Message |
2
|
GeorgeS
|
Sun 07 Feb, 2010 12:50:58 +0000 |
|