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encoded.go
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encoded.go
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package kv
import (
"io"
"time"
)
type TypedKV interface {
Put(key string, value []interface{}) error
List(prefix string) ([]string, error)
IterateAll(action IteratorAction) error
Iterate(prefix string, action IteratorAction) error
IterateSubTree(prefix string, action IteratorAction) error
Contains(key string) bool
GetOrDefault(key string, defaultFunc DefaultProvider) (interface{}, error)
Get(prefix string) (interface{}, error)
GetReader(prefix string) (io.Reader, error)
IsChanged(since time.Time, prefix string) (bool, error)
}
type EncodedKV struct {
delegate KV
codec Codec
}
type DefaultProvider func(key string) (interface{}, error)
func (e EncodedKV) Put(key string, value []interface{}) error {
panic("implement me")
}
func (e EncodedKV) List(prefix string) ([]string, error) {
return e.delegate.List(prefix)
}
func (e EncodedKV) IterateAll(action IteratorAction) error {
return e.delegate.IterateAll(action)
}
func (e EncodedKV) Iterate(prefix string, action IteratorAction) error {
return e.delegate.Iterate(prefix, action)
}
func (e EncodedKV) IterateSubTree(prefix string, action IteratorAction) error {
return e.delegate.IterateSubTree(prefix, action)
}
func (e EncodedKV) Contains(key string) bool {
return e.delegate.Contains(key)
}
func (e EncodedKV) GetOrDefault(key string, defaultFunc DefaultProvider) (interface{}, error) {
if !e.delegate.Contains(key) {
return defaultFunc(key)
}
return e.Get(key)
}
func (e EncodedKV) Get(prefix string) (interface{}, error) {
raw, err := e.delegate.Get(prefix)
if err != nil {
return nil, err
}
value, err := e.codec.Decode(raw)
if raw != nil {
return nil, err
}
return value, nil
}
func (e EncodedKV) GetReader(prefix string) (interface{}, error) {
return e.delegate.GetReader(prefix)
}
func (e EncodedKV) IsChanged(since time.Time, prefix string) (bool, error) {
return e.delegate.IsChanged(since, prefix)
}