database

type Batch interface {
	Writer

	// Commit writes all changes buffered in the batch to the underlying database.
	Commit() error

	// Close closes the batch without committing it.
	Close() error
}

type Batcher interface {
	NewBatch() Batch
}

type Database interface {
	Reader
	Writer
	Batcher
	Iterable
	io.Closer
}

type Iterable interface {
	NewIterator(prefix []byte, start []byte) (Iterator, error)
}

type Iterator interface {
	Next() bool
	Key() []byte
	Value() []byte
	Error() error
	Close() error
}

type Reader interface {
	Has(key []byte) (bool, error)
	Get(key []byte) ([]byte, bool, error)
}

type Writer interface {
	Put(key, value []byte) error
	Delete(key []byte) error
}