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public
abstract
class
UnaryCallable<RequestT
,
ResponseT
>
A UnaryCallable is an immutable object which is capable of making RPC calls to non-streaming API methods.
In typical usage, the request to send to the remote service will not be bound to the UnaryCallable, but instead is provided at call time, which allows for a UnaryCallable to be saved and used indefinitely.
There are two styles of calls that can be made through a UnaryCallable: synchronous and asynchronous.
Synchronous example:
RequestType
request
=
RequestType
.
newBuilder
().
build
();
UnaryCallable
Asynchronous example:
RequestType
request
=
RequestType
.
newBuilder
().
build
();
UnaryCallable
It is considered advanced usage for a user to create a UnaryCallable themselves. This class is intended to be created by a generated client class, and configured by instances of UnaryCallSettings.Builder which are exposed through the client settings class.
Type Parameters
| Name | Description |
|---|---|
| RequestT | |
| ResponseT |
Constructors
UnaryCallable()
protected
UnaryCallable
()
Methods
call(RequestT request)
public
ResponseT
call
(
RequestT
request
)
Same as #call(Object, ApiCallContext) , with a null context.
| Name | Description |
| request | RequestT
The request to send to the service. |
| Type | Description |
|---|---|
| ResponseT | the call result |
call(RequestT request, ApiCallContext context)
public
ResponseT
call
(
RequestT
request
,
ApiCallContext
context
)
Perform a call synchronously.
| Name | Description |
| request | RequestT
The request to send to the service. |
| context | ApiCallContext
ApiCallContext to make the call with |
| Type | Description |
|---|---|
| ResponseT | the call result |
futureCall(RequestT request)
public
ApiFuture<ResponseT>
futureCall
(
RequestT
request
)
Same as #futureCall(Object, ApiCallContext) , with a null context.
| Name | Description |
|---|---|
| request | RequestT
request |
| Type | Description |
| com.google.api.core.ApiFuture < ResponseT > | ApiFuture for the call result |
futureCall(RequestT request, ApiCallContext context)
public
abstract
ApiFuture<ResponseT>
futureCall
(
RequestT
request
,
ApiCallContext
context
)
Perform a call asynchronously.
| Name | Description |
| request | RequestT
|
| context | ApiCallContext
ApiCallContext to make the call with |
| Type | Description |
| com.google.api.core.ApiFuture < ResponseT > | ApiFuture for the call result |
withDefaultCallContext(ApiCallContext defaultCallContext)
public
UnaryCallable<RequestT
,
ResponseT
>
withDefaultCallContext
(
ApiCallContext
defaultCallContext
)
Returns a new UnaryCallable
with an ApiCallContext
that is used as a default
when none is supplied in individual calls.
| Name | Description |
| defaultCallContext | ApiCallContext
the default ApiCallContext . |
| Type | Description |
|---|---|
| UnaryCallable < RequestT , ResponseT > |
