mirror of
https://github.com/go-gitea/gitea.git
synced 2025-10-31 19:45:25 +01:00
d77176912b
* Migrate to go modules * make vendor * Update mvdan.cc/xurls * make vendor * Update code.gitea.io/git * make fmt-check * Update github.com/go-sql-driver/mysql * make vendor
85 lines
2.2 KiB
Markdown
85 lines
2.2 KiB
Markdown
# NoDB
|
|
|
|
[中文](https://github.com/lunny/nodb/blob/master/README_CN.md)
|
|
|
|
Nodb is a fork of [ledisdb](https://github.com/siddontang/ledisdb) and shrink version. It's get rid of all C or other language codes and only keep Go's. It aims to provide a nosql database library rather than a redis like server. So if you want a redis like server, ledisdb is the best choose.
|
|
|
|
Nodb is a pure Go and high performance NoSQL database library. It supports some data structure like kv, list, hash, zset, bitmap, set.
|
|
|
|
Nodb now use [goleveldb](https://github.com/syndtr/goleveldb) as backend to store data.
|
|
|
|
## Features
|
|
|
|
+ Rich data structure: KV, List, Hash, ZSet, Bitmap, Set.
|
|
+ Stores lots of data, over the memory limit.
|
|
+ Supports expiration and ttl.
|
|
+ Easy to embed in your own Go application.
|
|
|
|
## Install
|
|
|
|
go get github.com/lunny/nodb
|
|
|
|
## Package Example
|
|
|
|
### Open And Select database
|
|
```go
|
|
import(
|
|
"github.com/lunny/nodb"
|
|
"github.com/lunny/nodb/config"
|
|
)
|
|
|
|
cfg := new(config.Config)
|
|
cfg.DataDir = "./"
|
|
dbs, err := nodb.Open(cfg)
|
|
if err != nil {
|
|
fmt.Printf("nodb: error opening db: %v", err)
|
|
}
|
|
|
|
db, _ := dbs.Select(0)
|
|
```
|
|
### KV
|
|
|
|
KV is the most basic nodb type like any other key-value database.
|
|
```go
|
|
err := db.Set(key, value)
|
|
value, err := db.Get(key)
|
|
```
|
|
### List
|
|
|
|
List is simply lists of values, sorted by insertion order.
|
|
You can push or pop value on the list head (left) or tail (right).
|
|
```go
|
|
err := db.LPush(key, value1)
|
|
err := db.RPush(key, value2)
|
|
value1, err := db.LPop(key)
|
|
value2, err := db.RPop(key)
|
|
```
|
|
### Hash
|
|
|
|
Hash is a map between fields and values.
|
|
```go
|
|
n, err := db.HSet(key, field1, value1)
|
|
n, err := db.HSet(key, field2, value2)
|
|
value1, err := db.HGet(key, field1)
|
|
value2, err := db.HGet(key, field2)
|
|
```
|
|
### ZSet
|
|
|
|
ZSet is a sorted collections of values.
|
|
Every member of zset is associated with score, a int64 value which used to sort, from smallest to greatest score.
|
|
Members are unique, but score may be same.
|
|
```go
|
|
n, err := db.ZAdd(key, ScorePair{score1, member1}, ScorePair{score2, member2})
|
|
ay, err := db.ZRangeByScore(key, minScore, maxScore, 0, -1)
|
|
```
|
|
## Links
|
|
|
|
+ [Ledisdb Official Website](http://ledisdb.com)
|
|
+ [GoDoc](https://godoc.org/github.com/lunny/nodb)
|
|
+ [GoWalker](https://gowalker.org/github.com/lunny/nodb)
|
|
|
|
|
|
## Thanks
|
|
|
|
Gmail: siddontang@gmail.com
|