-
Notifications
You must be signed in to change notification settings - Fork 145
/
subrealm.go
55 lines (44 loc) · 1.31 KB
/
subrealm.go
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
package subrealm
import (
"github.com/iotaledger/wasp/packages/kv"
)
type subrealm struct {
kv kv.KVStore
prefix kv.Key
}
func New(kvStore kv.KVStore, prefix kv.Key) kv.KVStore {
return &subrealm{kvStore, prefix}
}
func (s *subrealm) Set(key kv.Key, value []byte) {
s.kv.Set(s.prefix+key, value)
}
func (s *subrealm) Del(key kv.Key) {
s.kv.Del(s.prefix + key)
}
// Get returns the value, or nil if not found
func (s *subrealm) Get(key kv.Key) []byte {
return s.kv.Get(s.prefix + key)
}
func (s *subrealm) Has(key kv.Key) bool {
return s.kv.Has(s.prefix + key)
}
func (s *subrealm) Iterate(prefix kv.Key, f func(key kv.Key, value []byte) bool) {
s.kv.Iterate(s.prefix+prefix, func(key kv.Key, value []byte) bool {
return f(key[len(s.prefix):], value)
})
}
func (s *subrealm) IterateKeys(prefix kv.Key, f func(key kv.Key) bool) {
s.kv.IterateKeys(s.prefix+prefix, func(key kv.Key) bool {
return f(key[len(s.prefix):])
})
}
func (s *subrealm) IterateSorted(prefix kv.Key, f func(key kv.Key, value []byte) bool) {
s.kv.IterateSorted(s.prefix+prefix, func(key kv.Key, value []byte) bool {
return f(key[len(s.prefix):], value)
})
}
func (s *subrealm) IterateKeysSorted(prefix kv.Key, f func(key kv.Key) bool) {
s.kv.IterateKeysSorted(s.prefix+prefix, func(key kv.Key) bool {
return f(key[len(s.prefix):])
})
}