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
|
package driver
type BatchPuter interface {
BatchPut([]Write) error
}
type Write struct {
Key []byte
Value []byte
}
type WriteBatch struct {
batch BatchPuter
wb []Write
}
func (w *WriteBatch) Put(key, value []byte) {
if value == nil {
value = []byte{}
}
w.wb = append(w.wb, Write{key, value})
}
func (w *WriteBatch) Delete(key []byte) {
w.wb = append(w.wb, Write{key, nil})
}
func (w *WriteBatch) Commit() error {
return w.batch.BatchPut(w.wb)
}
func (w *WriteBatch) Rollback() error {
w.wb = w.wb[0:0]
return nil
}
func NewWriteBatch(puter BatchPuter) IWriteBatch {
return &WriteBatch{puter, []Write{}}
}
|
