package txindex import ( "context" "errors" abci "github.com/tendermint/tendermint/abci/types" "github.com/tendermint/tendermint/libs/pubsub/query" ) // XXX/TODO: These types should be moved to the indexer package. // TxIndexer interface defines methods to index and search transactions. type TxIndexer interface { // AddBatch analyzes, indexes and stores a batch of transactions. AddBatch(b *Batch) error // Index analyzes, indexes and stores a single transaction. Index(result *abci.TxResult) error // Get returns the transaction specified by hash or nil if the transaction is not indexed // or stored. Get(hash []byte) (*abci.TxResult, error) // Search allows you to query for transactions. Search(ctx context.Context, q *query.Query) ([]*abci.TxResult, error) } // Batch groups together multiple Index operations to be performed at the same time. // NOTE: Batch is NOT thread-safe and must not be modified after starting its execution. type Batch struct { Ops []*abci.TxResult } // NewBatch creates a new Batch. func NewBatch(n int64) *Batch { return &Batch{ Ops: make([]*abci.TxResult, n), } } // Add or update an entry for the given result.Index. func (b *Batch) Add(result *abci.TxResult) error { b.Ops[result.Index] = result return nil } // Size returns the total number of operations inside the batch. func (b *Batch) Size() int { return len(b.Ops) } // ErrorEmptyHash indicates empty hash var ErrorEmptyHash = errors.New("transaction hash cannot be empty")