Class BigQueryWriteClientImpl (2.5.0) 

public sealed class BigQueryWriteClientImpl : BigQueryWriteClient

BigQueryWrite client wrapper implementation, for convenient use.

Inheritance

Object > BigQueryWriteClient > BigQueryWriteClientImpl

Namespace

Google.Cloud.BigQuery.Storage.V1

Assembly

Google.Cloud.BigQuery.Storage.V1.dll

Remarks

BigQuery Write API.

The Write API can be used to write data to BigQuery.

For supplementary information about the Write API, see: https://cloud.google.com/bigquery/docs/write-api

Constructors

BigQueryWriteClientImpl(BigQueryWrite.BigQueryWriteClient, BigQueryWriteSettings)

public BigQueryWriteClientImpl(BigQueryWrite.BigQueryWriteClient grpcClient, BigQueryWriteSettings settings)

Constructs a client wrapper for the BigQueryWrite service, with the specified gRPC client and settings.

Parameters
Name Description
grpcClient BigQueryWrite.BigQueryWriteClient

The underlying gRPC client.
settings BigQueryWriteSettings

The base BigQueryWriteSettings used within this client.

Properties

GrpcClient

public override BigQueryWrite.BigQueryWriteClient GrpcClient { get; }

The underlying gRPC BigQueryWrite client

Property Value
Type Description
BigQueryWrite.BigQueryWriteClient
Overrides

Methods

AppendRows(CallSettings, BidirectionalStreamingSettings)

public override BigQueryWriteClient.AppendRowsStream AppendRows(CallSettings callSettings = null, BidirectionalStreamingSettings streamingSettings = null)

Appends data to the given stream.

If offset is specified, the offset is checked against the end of stream. The server returns OUT_OF_RANGE in AppendRowsResponse if an attempt is made to append to an offset beyond the current end of the stream or ALREADY_EXISTS if user provides an offset that has already been written to. User can retry with adjusted offset within the same RPC connection. If offset is not specified, append happens at the end of the stream.

The response contains an optional offset at which the append happened. No offset information will be returned for appends to a default stream.

Responses are received in the same order in which requests are sent. There will be one response for each successful inserted request. Responses may optionally embed error information if the originating AppendRequest was not successfully processed.

The specifics of when successfully appended data is made visible to the table are governed by the type of stream:

  • For COMMITTED streams (which includes the default stream), data is visible immediately upon successful append.

  • For BUFFERED streams, data is made visible via a subsequent FlushRows rpc which advances a cursor to a newer offset in the stream.

  • For PENDING streams, data is not made visible until the stream itself is finalized (via the FinalizeWriteStream rpc), and the stream is explicitly committed via the BatchCommitWriteStreams rpc.

Parameters
Name Description
callSettings CallSettings

If not null, applies overrides to this RPC call.
streamingSettings BidirectionalStreamingSettings

If not null, applies streaming overrides to this RPC call.
Returns
Type Description
BigQueryWriteClient.AppendRowsStream

The client-server stream.
Overrides

BatchCommitWriteStreams(BatchCommitWriteStreamsRequest, CallSettings)

public override BatchCommitWriteStreamsResponse BatchCommitWriteStreams(BatchCommitWriteStreamsRequest request, CallSettings callSettings = null)

Atomically commits a group of PENDING streams that belong to the same parent table.

Streams must be finalized before commit and cannot be committed multiple times. Once a stream is committed, data in the stream becomes available for read operations.

Parameters
Name Description
request BatchCommitWriteStreamsRequest

The request object containing all of the parameters for the API call.
callSettings CallSettings

If not null, applies overrides to this RPC call.
Returns
Type Description
BatchCommitWriteStreamsResponse

The RPC response.
Overrides

BatchCommitWriteStreamsAsync(BatchCommitWriteStreamsRequest, CallSettings)

public override Task<BatchCommitWriteStreamsResponse> BatchCommitWriteStreamsAsync(BatchCommitWriteStreamsRequest request, CallSettings callSettings = null)

Atomically commits a group of PENDING streams that belong to the same parent table.

Streams must be finalized before commit and cannot be committed multiple times. Once a stream is committed, data in the stream becomes available for read operations.

Parameters
Name Description
request BatchCommitWriteStreamsRequest

The request object containing all of the parameters for the API call.
callSettings CallSettings

If not null, applies overrides to this RPC call.
Returns
Type Description
Task<BatchCommitWriteStreamsResponse>

A Task containing the RPC response.
Overrides

CreateWriteStream(CreateWriteStreamRequest, CallSettings)

public override WriteStream CreateWriteStream(CreateWriteStreamRequest request, CallSettings callSettings = null)

Creates a write stream to the given table. Additionally, every table has a special stream named '_default' to which data can be written. This stream doesn't need to be created using CreateWriteStream. It is a stream that can be used simultaneously by any number of clients. Data written to this stream is considered committed as soon as an acknowledgement is received.

Parameters
Name Description
request CreateWriteStreamRequest

The request object containing all of the parameters for the API call.
callSettings CallSettings

If not null, applies overrides to this RPC call.
Returns
Type Description
WriteStream

The RPC response.
Overrides

CreateWriteStreamAsync(CreateWriteStreamRequest, CallSettings)

public override Task<WriteStream> CreateWriteStreamAsync(CreateWriteStreamRequest request, CallSettings callSettings = null)

Creates a write stream to the given table. Additionally, every table has a special stream named '_default' to which data can be written. This stream doesn't need to be created using CreateWriteStream. It is a stream that can be used simultaneously by any number of clients. Data written to this stream is considered committed as soon as an acknowledgement is received.

Parameters
Name Description
request CreateWriteStreamRequest

The request object containing all of the parameters for the API call.
callSettings CallSettings

If not null, applies overrides to this RPC call.
Returns
Type Description
Task<WriteStream>

A Task containing the RPC response.
Overrides

FinalizeWriteStream(FinalizeWriteStreamRequest, CallSettings)

public override FinalizeWriteStreamResponse FinalizeWriteStream(FinalizeWriteStreamRequest request, CallSettings callSettings = null)

Finalize a write stream so that no new data can be appended to the stream. Finalize is not supported on the '_default' stream.

Parameters
Name Description
request FinalizeWriteStreamRequest

The request object containing all of the parameters for the API call.
callSettings CallSettings

If not null, applies overrides to this RPC call.
Returns
Type Description
FinalizeWriteStreamResponse

The RPC response.
Overrides

FinalizeWriteStreamAsync(FinalizeWriteStreamRequest, CallSettings)

public override Task<FinalizeWriteStreamResponse> FinalizeWriteStreamAsync(FinalizeWriteStreamRequest request, CallSettings callSettings = null)

Finalize a write stream so that no new data can be appended to the stream. Finalize is not supported on the '_default' stream.

Parameters
Name Description
request FinalizeWriteStreamRequest

The request object containing all of the parameters for the API call.
callSettings CallSettings

If not null, applies overrides to this RPC call.
Returns
Type Description
Task<FinalizeWriteStreamResponse>

A Task containing the RPC response.
Overrides

FlushRows(FlushRowsRequest, CallSettings)

public override FlushRowsResponse FlushRows(FlushRowsRequest request, CallSettings callSettings = null)

Flushes rows to a BUFFERED stream.

If users are appending rows to BUFFERED stream, flush operation is required in order for the rows to become available for reading. A Flush operation flushes up to any previously flushed offset in a BUFFERED stream, to the offset specified in the request.

Flush is not supported on the _default stream, since it is not BUFFERED.

Parameters
Name Description
request FlushRowsRequest

The request object containing all of the parameters for the API call.
callSettings CallSettings

If not null, applies overrides to this RPC call.
Returns
Type Description
FlushRowsResponse

The RPC response.
Overrides

FlushRowsAsync(FlushRowsRequest, CallSettings)

public override Task<FlushRowsResponse> FlushRowsAsync(FlushRowsRequest request, CallSettings callSettings = null)

Flushes rows to a BUFFERED stream.

If users are appending rows to BUFFERED stream, flush operation is required in order for the rows to become available for reading. A Flush operation flushes up to any previously flushed offset in a BUFFERED stream, to the offset specified in the request.

Flush is not supported on the _default stream, since it is not BUFFERED.

Parameters
Name Description
request FlushRowsRequest

The request object containing all of the parameters for the API call.
callSettings CallSettings

If not null, applies overrides to this RPC call.
Returns
Type Description
Task<FlushRowsResponse>

A Task containing the RPC response.
Overrides

GetWriteStream(GetWriteStreamRequest, CallSettings)

public override WriteStream GetWriteStream(GetWriteStreamRequest request, CallSettings callSettings = null)

Gets information about a write stream.

Parameters
Name Description
request GetWriteStreamRequest

The request object containing all of the parameters for the API call.
callSettings CallSettings

If not null, applies overrides to this RPC call.
Returns
Type Description
WriteStream

The RPC response.
Overrides

GetWriteStreamAsync(GetWriteStreamRequest, CallSettings)

public override Task<WriteStream> GetWriteStreamAsync(GetWriteStreamRequest request, CallSettings callSettings = null)

Gets information about a write stream.

Parameters
Name Description
request GetWriteStreamRequest

The request object containing all of the parameters for the API call.
callSettings CallSettings

If not null, applies overrides to this RPC call.
Returns
Type Description
Task<WriteStream>

A Task containing the RPC response.
Overrides