chainhelen / bptree

Implementing bplustree base on disk(kv store).

bplustree

Implementing bplustree base on disk(kv store).The type of key is uint64 and value is string.
And all actions are not Concurrent security.

InitTree

if tree, err = NewTree("./data.db"); err != nil {
	panic(err)
}
defer tree.Close()

NewTree will create new file named ./data.db if not existed, or will read data by bplustree format.

Insert

if err = tree.Insert(20, "2001"); err != nil {
    panic(err)
}

Find

if val, err = tree.Find(20); err != nil {
    panic(err)
} 

Delete

if err = tree.Delete(20); err != nil {
	panic(err)
}

Update

if err = tree.Update(20, "2002"); err != nil {
    panic(err)
}

all error

var HasExistedKeyError = errors.New("hasExistedKey")
var NotFoundKey = errors.New("notFoundKey")
var InvalidDBFormat = errors.New("invalid db format")

test

go test -v

LICENSE

MIT