定义 Committer 接口。Committer 角色必须实现这一接口。
type Committer interface {
// CommitWithPvtData block and private data into the ledger
CommitWithPvtData(blockAndPvtData *ledger.BlockAndPvtData) error
// GetPvtDataAndBlockByNum retrieves block with private data with given
// sequence number
GetPvtDataAndBlockByNum(seqNum uint64) (*ledger.BlockAndPvtData, error)
// GetPvtDataByNum returns a slice of the private data from the ledger
// for given block and based on the filter which indicates a map of
// collections and namespaces of private data to retrieve
GetPvtDataByNum(blockNum uint64, filter ledger.PvtNsCollFilter) ([]*ledger.TxPvtData, error)
// Get recent block sequence number
LedgerHeight() (uint64, error)
// Gets blocks with sequence numbers provided in the slice
GetBlocks(blockSeqs []uint64) []*common.Block
// Closes committing service
Close()
}