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Class ServerStreamingCallable<RequestT,ResponseT> (2.7.1)

public abstract class ServerStreamingCallable<RequestT,ResponseT>

A ServerStreamingCallable is an immutable object which is capable of making RPC calls to server streaming API methods. Not all transports support streaming.

It is considered advanced usage for a user to create a ServerStreamingCallable themselves. This class is intended to be created by a generated client class, and configured by instances of StreamingCallSettings.Builder which are exposed through the client settings class.

Inheritance

java.lang.Object > ServerStreamingCallable<RequestT,ResponseT>

Inherited Members

Object.clone()

Object.equals(Object)

Object.finalize()

Object.getClass()

Object.hashCode()

Object.notify()

Object.notifyAll()

Object.toString()

Object.wait()

Object.wait(long)

Object.wait(long,int)

Type Parameters

Name	Description
RequestT
ResponseT

Constructors

ServerStreamingCallable()

protected ServerStreamingCallable()

Methods

all()

public UnaryCallable<RequestT,List<ResponseT>> all()

Construct a UnaryCallable that will buffer the entire stream into memory before completing. If the stream is empty, then the list will be empty.

Example usage:


 StreamingCallable

Returns

Type	Description
UnaryCallable<RequestT,List<ResponseT>>	The UnaryCallable.

blockingServerStreamingCall(RequestT request) (deprecated)

public Iterator<ResponseT> blockingServerStreamingCall(RequestT request)

(deprecated) Please use call() instead.

Conduct a iteration server streaming call

Parameter

Name	Description
request	`RequestT` request

Returns

Type	Description
Iterator<ResponseT>	Iterator which is used for iterating the responses.

blockingServerStreamingCall(RequestT request, ApiCallContext context) (deprecated)

public Iterator<ResponseT> blockingServerStreamingCall(RequestT request, ApiCallContext context)

(deprecated) Please use call() instead.

Conduct an iteration server streaming call

Parameters

Name	Description
request	`RequestT` request
context	`ApiCallContext` context

Returns

Type	Description
Iterator<ResponseT>	Iterator which is used for iterating the responses.

call(RequestT request)

public ServerStream<ResponseT> call(RequestT request)

Conduct a iteration server streaming call.

This returns a live stream that must either be fully consumed or cancelled. Example usage:


 StreamingCallable

Parameter

Name	Description
request	`RequestT` request

Returns

Type	Description
ServerStream<ResponseT>	ServerStream which is used for iterating the responses.

call(RequestT request, ApiCallContext context)

public ServerStream<ResponseT> call(RequestT request, ApiCallContext context)

Conduct a server streaming call with the given ApiCallContext.

This returns a live stream that must either be fully consumed or cancelled.

Parameters

Name	Description
request	`RequestT` request
context	`ApiCallContext` the context

Returns

Type	Description
ServerStream<ResponseT>	ServerStream which is used for iterating the responses.

call(RequestT request, ResponseObserver<ResponseT> responseObserver)

public void call(RequestT request, ResponseObserver<ResponseT> responseObserver)

Conduct a server streaming call

Parameters

Name	Description
request	`RequestT` request
responseObserver	`ResponseObserver<ResponseT>` ResponseObserver to observe the streaming responses

call(RequestT request, ResponseObserver<ResponseT> responseObserver, ApiCallContext context)

public abstract void call(RequestT request, ResponseObserver<ResponseT> responseObserver, ApiCallContext context)

Conduct a server streaming call with the given ApiCallContext.

Parameters

Name	Description
request	`RequestT` request
responseObserver	`ResponseObserver<ResponseT>` ResponseObserver to observe the streaming responses
context	`ApiCallContext` ApiCallContext to provide context information for the RPC call.

first()

public UnaryCallable<RequestT,ResponseT> first()

Construct a UnaryCallable that will yield the first item in the stream and cancel it. If the stream is empty, the item will be null.

Example usage:


 StreamingCallable

Returns

Type	Description
UnaryCallable<RequestT,ResponseT>	The UnaryCallable.

serverStreamingCall(RequestT request, ApiStreamObserver<ResponseT> responseObserver) (deprecated)

public void serverStreamingCall(RequestT request, ApiStreamObserver<ResponseT> responseObserver)

(deprecated) Please use the ResponseObserver variant instead.

Conduct a server streaming call

Parameters

Name	Description
request	`RequestT` request
responseObserver	`ApiStreamObserver<ResponseT>` ApiStreamObserver to observe the streaming responses

serverStreamingCall(RequestT request, ApiStreamObserver<ResponseT> responseObserver, ApiCallContext context) (deprecated)

public void serverStreamingCall(RequestT request, ApiStreamObserver<ResponseT> responseObserver, ApiCallContext context)

(deprecated) Please use the ResponseObserver variant instead.

Conduct a server streaming call with the given ApiCallContext.

Parameters

Name	Description
request	`RequestT` request
responseObserver	`ApiStreamObserver<ResponseT>` ApiStreamObserver to observe the streaming responses
context	`ApiCallContext` ApiCallContext to provide context information for the RPC call.

withDefaultCallContext(ApiCallContext defaultCallContext)

public ServerStreamingCallable<RequestT,ResponseT> withDefaultCallContext(ApiCallContext defaultCallContext)

Returns a new ServerStreamingCallable with an ApiCallContext that is used as a default when none is supplied in individual calls.

Parameter

Name	Description
defaultCallContext	`ApiCallContext` the default ApiCallContext.

Returns

Type	Description
ServerStreamingCallable<RequestT,ResponseT>