leveldb

Documentation

Index

• func NewLevelDB(path string) (database.Database, error)
• type Batch
  • func (b *Batch) Commit() error
  • func (b *Batch) Delete(key []byte)
  • func (b *Batch) Put(key []byte, value []byte)
  • func (b *Batch) Rollback()
• type LevelDB
  • func (db *LevelDB) Close()
  • func (db *LevelDB) Delete(key []byte) error
  • func (db *LevelDB) DeleteSring(key string) error
  • func (db *LevelDB) Get(key []byte) ([]byte, error)
  • func (db *LevelDB) GetString(key string) (string, error)
  • func (db *LevelDB) Has(key []byte) (ret bool, err error)
  • func (db *LevelDB) HasString(key string) (ret bool, err error)
  • func (db *LevelDB) NewBatch() database.Batch
  • func (db *LevelDB) Put(key []byte, value []byte) error
  • func (db *LevelDB) PutString(key string, value string) error

Functions

func NewLevelDB

func NewLevelDB(path string) (database.Database, error)

NewLevelDB new database interface of level db

Types

type Batch

type Batch struct {
	// contains filtered or unexported fields
}

Batch batch implementation for leveldb

func (*Batch) Commit

func (b *Batch) Commit() error

Commit commit batch operator.

func (*Batch) Delete

func (b *Batch) Delete(key []byte)

Delete deletes the value for the given key.

func (*Batch) Put

func (b *Batch) Put(key []byte, value []byte)

Put sets the value for the given key

func (*Batch) Rollback

func (b *Batch) Rollback()

Rollback rollback batch operator.

type LevelDB

type LevelDB struct {
	// contains filtered or unexported fields
}

LevelDB level db struct

func (*LevelDB) Close

func (db *LevelDB) Close()

Close don't forget close db when not use

func (*LevelDB) Delete

func (db *LevelDB) Delete(key []byte) error

Delete deletes the value for the given key.

func (*LevelDB) DeleteSring

func (db *LevelDB) DeleteSring(key string) error

DeleteSring deletes the value for the given key.

func (*LevelDB) Get

func (db *LevelDB) Get(key []byte) ([]byte, error)

Get gets the value for the given key

func (*LevelDB) GetString

func (db *LevelDB) GetString(key string) (string, error)

GetString gets the value for the given key

func (*LevelDB) Has

func (db *LevelDB) Has(key []byte) (ret bool, err error)

Has returns true if the DB does contains the given key.

func (*LevelDB) HasString

func (db *LevelDB) HasString(key string) (ret bool, err error)

HasString returns true if the DB does contains the given key.

func (*LevelDB) NewBatch

func (db *LevelDB) NewBatch() database.Batch

NewBatch new a batch operator

func (*LevelDB) Put

func (db *LevelDB) Put(key []byte, value []byte) error

Put sets the value for the given key

func (*LevelDB) PutString

func (db *LevelDB) PutString(key string, value string) error

PutString sets the value for the given key