switchable

Documentation

Index

• type Snapshot
  • func Wrap(snap kvdb.Snapshot) *Snapshot
  • func (s *Snapshot) Get(key []byte) ([]byte, error)
  • func (s *Snapshot) Has(key []byte) (bool, error)
  • func (s *Snapshot) NewIterator(prefix []byte, start []byte) kvdb.Iterator
  • func (s *Snapshot) Release()
  • func (s *Snapshot) SwitchTo(snap kvdb.Snapshot) kvdb.Snapshot

Types

type Snapshot

type Snapshot struct {
	kvdb.Snapshot
	// contains filtered or unexported fields
}

func Wrap

func Wrap(snap kvdb.Snapshot) *Snapshot

func (*Snapshot) Get

func (s *Snapshot) Get(key []byte) ([]byte, error)

Get returns key-value pair by key.

func (*Snapshot) Has

func (s *Snapshot) Has(key []byte) (bool, error)

Has checks if key is in the exists.

func (*Snapshot) NewIterator

func (s *Snapshot) NewIterator(prefix []byte, start []byte) kvdb.Iterator

NewIterator creates a binary-alphabetical iterator over a subset of database content with a particular key prefix, starting at a particular initial key (or after, if it does not exist).

func (*Snapshot) Release

func (s *Snapshot) Release()

func (*Snapshot) SwitchTo

func (s *Snapshot) SwitchTo(snap kvdb.Snapshot) kvdb.Snapshot