/// <summary>
/// Constructor with complete control that does not perform any validation.
/// </summary>
internal ResultStream(
SpannerClient client,
ReadOrQueryRequest request,
Session session,
CallSettings callSettings,
int maxBufferSize,
RetrySettings retrySettings)
{
_buffer = new LinkedList <PartialResultSet>();
_client = GaxPreconditions.CheckNotNull(client, nameof(client));
_request = GaxPreconditions.CheckNotNull(request, nameof(request));
_session = GaxPreconditions.CheckNotNull(session, nameof(session));
_callSettings = callSettings;
_maxBufferSize = GaxPreconditions.CheckArgumentRange(maxBufferSize, nameof(maxBufferSize), 1, 10_000);
_retrySettings = GaxPreconditions.CheckNotNull(retrySettings, nameof(retrySettings));
}
/// <summary>
/// Creates a <see cref="ReliableStreamReader"/> for the given request
/// </summary>
/// <param name="request">The read request. Must not be null. The request will be modified with session and transaction details
/// from this object. If this object's <see cref="TransactionId"/> is null, the request's transaction is not modified.</param>
/// <param name="callSettings">If not null, applies overrides to this RPC call.</param>
/// <returns>A <see cref="ReliableStreamReader"/> for the streaming read request.</returns>
internal ReliableStreamReader ExecuteReadOrQueryStreamReader(ReadOrQueryRequest request, CallSettings callSettings)
{
CheckNotDisposed();
GaxPreconditions.CheckNotNull(request, nameof(request));
if (TransactionId != null)
{
request.Transaction = new TransactionSelector {
Id = TransactionId
};
}
request.SessionAsSessionName = SessionName;
SpannerClientImpl.ApplyResourcePrefixHeaderFromSession(ref callSettings, request.Session);
ResultStream stream = new ResultStream(Client, request, _session, callSettings);
return(new ReliableStreamReader(stream, Client.Settings.Logger));
}
/// <summary>
/// Constructor for normal usage, with default buffer size, backoff settings and jitter.
/// </summary>
internal ResultStream(SpannerClient client, ReadOrQueryRequest request, Session session, CallSettings callSettings)
: this(client, request, session, callSettings, DefaultMaxBufferSize, s_defaultRetrySettings)
{
}
/// <summary> /// Creates a <see cref="ReliableStreamReader"/> for the given request. /// </summary> /// <param name="request">The query request. Must not be null. The request will be modified with session and transaction details /// from this object. If this object's <see cref="TransactionId"/> is null, the request's transaction is not modified.</param> /// <param name="callSettings">If not null, applies overrides to this RPC call.</param> /// <returns>A <see cref="ReliableStreamReader"/> for the streaming SQL request.</returns> public ReliableStreamReader ExecuteSqlStreamReader(ExecuteSqlRequest request, CallSettings callSettings) => ExecuteReadOrQueryStreamReader(ReadOrQueryRequest.FromRequest(request), callSettings);
