/** * <code>.io.pravega.controller.stream.api.grpc.v1.TxnId txnId = 1;</code> */ private com.google.protobuf.SingleFieldBuilderV3< io.pravega.controller.stream.api.grpc.v1.Controller.TxnId, io.pravega.controller.stream.api.grpc.v1.Controller.TxnId.Builder, io.pravega.controller.stream.api.grpc.v1.Controller.TxnIdOrBuilder> getTxnIdFieldBuilder() { if (txnIdBuilder_ == null) { txnIdBuilder_ = new com.google.protobuf.SingleFieldBuilderV3< io.pravega.controller.stream.api.grpc.v1.Controller.TxnId, io.pravega.controller.stream.api.grpc.v1.Controller.TxnId.Builder, io.pravega.controller.stream.api.grpc.v1.Controller.TxnIdOrBuilder>( getTxnId(), getParentForChildren(), isClean()); txnId_ = null; } return txnIdBuilder_; }