database

package

v0.6.1 Latest Latest Go to latest Published: Dec 21, 2022 License: MIT Imports: 6 Imported by: 0

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

DB encapsulates a leveldb.DB storage.

func New(path string) (*DB, error)

New creates an instance of DB.

func (db *DB) Clear() error

Clear all information from the database.

func (db *DB) Close() error

Close the storage.

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

Delete an entry identified by the specified key.

func (db *DB) FetchTxRecords() ([]txrecords.TxRecord, error)

FetchTxRecords transaction records.

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

Get a value using a key.

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

Put inserts a key and a value in the storage.

func (db *DB) PutTxRecord(tx transactions.ContractCall, height uint64, direction txrecords.Direction) error

PutTxRecord saves the transaction record on the DB.