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Add list method #3

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Add list method #3

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a6407f2
add list entries method
jorgesece Nov 5, 2018
10a4ae0
fix dependence
jorgesece Nov 5, 2018
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18 changes: 18 additions & 0 deletions skv.go
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Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,7 @@ import (
"bytes"
"encoding/gob"
"errors"
"reflect"
"time"

"github.com/boltdb/bolt"
Expand Down Expand Up @@ -141,6 +142,23 @@ func (kvs *KVStore) Delete(key string) error {
})
}

// List all entry values from the store. In case of there are not entries, it will return nil.
func (kvs *KVStore) List(ty reflect.Type) (map[string]interface{}, error) {
output := make(map[string]interface{})
err := kvs.db.View(func(tx *bolt.Tx) error {
c := tx.Bucket(bucketName).Cursor()
for k, v := c.First(); k != nil; k, v = c.Next() {
value := reflect.New(ty)
vl := value.Interface()
d := gob.NewDecoder(bytes.NewReader(v))
d.Decode(vl)
output[string(k)] = vl
}
return nil
})
return output, err
}

// Close closes the key-value store file.
func (kvs *KVStore) Close() error {
return kvs.db.Close()
Expand Down