BitSharp.Esent.EsentChainStateCursor.ReadUnspentTransactionsInner C# (CSharp) Method

        private IEnumerable<UnspentTx> ReadUnspentTransactionsInner()
        {
            using (SetSessionContext())
            {
                Api.JetSetCurrentIndex(this.jetSession, this.unspentTxTableId, "IX_TxHash");

                if (Api.TryMoveFirst(this.jetSession, this.unspentTxTableId))
                {
                    do
                    {
                        var txHashColumn = new BytesColumnValue { Columnid = this.txHashColumnId };
                        var blockIndexColumn = new Int32ColumnValue { Columnid = this.blockIndexColumnId };
                        var txIndexColumn = new Int32ColumnValue { Columnid = this.txIndexColumnId };
                        var txVersionColumn = new UInt32ColumnValue { Columnid = this.txVersionColumnId };
                        var isCoinbaseColumn = new BoolColumnValue { Columnid = this.isCoinbaseColumnId };
                        var outputStatesColumn = new BytesColumnValue { Columnid = this.outputStatesColumnId };
                        var txOutputBytesColumn = new BytesColumnValue { Columnid = this.txOutputBytesColumnId };
                        Api.RetrieveColumns(this.jetSession, this.unspentTxTableId, txHashColumn, blockIndexColumn, txIndexColumn, txVersionColumn, isCoinbaseColumn, outputStatesColumn, txOutputBytesColumn);

                        var txHash = DbEncoder.DecodeUInt256(txHashColumn.Value);
                        var blockIndex = blockIndexColumn.Value.Value;
                        var txIndex = txIndexColumn.Value.Value;
                        var txVersion = txVersionColumn.Value.Value;
                        var isCoinbase = isCoinbaseColumn.Value.Value;
                        var outputStates = DataDecoder.DecodeOutputStates(outputStatesColumn.Value);

                        yield return new UnspentTx(txHash, blockIndex, txIndex, txVersion, isCoinbase, outputStates);
                    }
                    while (Api.TryMoveNext(this.jetSession, this.unspentTxTableId));
                }
            }
        }