```
@Immutable
@CheckReturnValue
public final class CallOptions
extends Object
```
The collection of runtime options for a new RPC call.
A field that is not set is null.

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static class CallOptions.Key<T>
Key for a key-value pair.

Field Summary

Fields
Modifier and Type Field Description

static CallOptions DEFAULT
A blank CallOptions that all fields are not set.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`CallOptions`	`clearOnReadyThreshold()`	Resets to the default number of bytes that must be queued before the call will leave the 'wait for ready' state.
`String`	`getAuthority()`	Override the HTTP/2 authority the channel claims to be connecting to.
`String`	`getCompressor()`	Returns the compressor's name.
`CallCredentials`	`getCredentials()`	Returns the call credentials.
`Deadline`	`getDeadline()`	Returns the deadline or `null` if the deadline is not set.
`Executor`	`getExecutor()`	Returns the executor override to use for this specific call, or `null` if there is no override.
`Integer`	`getMaxInboundMessageSize()`	Gets the maximum allowed message size acceptable from the remote peer.
`Integer`	`getMaxOutboundMessageSize()`	Gets the maximum allowed message size acceptable to send the remote peer.
`Integer`	`getOnReadyThreshold()`	Returns to the default number of bytes that must be queued before the call will leave the 'wait for ready' state.
`<T> T`	`getOption(CallOptions.Key<T> key)`	Get the value for a custom option or its inherent default.
`List<ClientStreamTracer.Factory>`	`getStreamTracerFactories()`	Returns an immutable list of `ClientStreamTracerFactory`s.
`boolean`	`isWaitForReady()`	Returns whether 'wait for ready' option is enabled for the call.
`String`	`toString()`
`CallOptions`	`withAuthority(String authority)`	Override the HTTP/2 authority the channel claims to be connecting to.
`CallOptions`	`withCallCredentials(CallCredentials credentials)`	Returns a new `CallOptions` with the given call credentials.
`CallOptions`	`withCompression(String compressorName)`	Sets the compression to use for the call.
`CallOptions`	`withDeadline(Deadline deadline)`	Returns a new `CallOptions` with the given absolute deadline.
`CallOptions`	`withDeadlineAfter(long duration, TimeUnit unit)`	Returns a new `CallOptions` with a deadline that is after the given `duration` from now.
`CallOptions`	`withExecutor(Executor executor)`	Returns a new `CallOptions` with `executor` to be used instead of the default executor specified with `ManagedChannelBuilder.executor(java.util.concurrent.Executor)`.
`CallOptions`	`withMaxInboundMessageSize(int maxSize)`	Sets the maximum allowed message size acceptable from the remote peer.
`CallOptions`	`withMaxOutboundMessageSize(int maxSize)`	Sets the maximum allowed message size acceptable sent to the remote peer.
`CallOptions`	`withOnReadyThreshold(int numBytes)`	Specifies how many bytes must be queued before the call is considered not ready to send more messages.
`<T> CallOptions`	`withOption(CallOptions.Key<T> key, T value)`	Sets a custom option.
`CallOptions`	`withoutWaitForReady()`	Disables 'wait for ready' feature for the call.
`CallOptions`	`withStreamTracerFactory(ClientStreamTracer.Factory factory)`	Returns a new `CallOptions` with a `ClientStreamTracerFactory` in addition to the existing factories.
`CallOptions`	`withWaitForReady()`	Enables 'wait for ready' for the call.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Field Detail
  - DEFAULT
```
public static final CallOptions DEFAULT
```
    A blank CallOptions that all fields are not set.
- Method Detail
  - withAuthority
```
@ExperimentalApi("https://github.com/grpc/grpc-java/issues/1767")
public CallOptions withAuthority(@Nullable
                                 String authority)
```
    Override the HTTP/2 authority the channel claims to be connecting to. This is not generally safe. Overriding allows advanced users to re-use a single Channel for multiple services, even if those services are hosted on different domain names. That assumes the server is virtually hosting multiple domains and is guaranteed to continue doing so. It is rare for a service provider to make such a guarantee. At this time, there is no security verification of the overridden value, such as making sure the authority matches the server's TLS certificate.
  - withCallCredentials
```
public CallOptions withCallCredentials(@Nullable
                                       CallCredentials credentials)
```
    Returns a new CallOptions with the given call credentials.
  - withCompression
```
public CallOptions withCompression(@Nullable
                                   String compressorName)
```
    Sets the compression to use for the call. The compressor must be a valid name known in the CompressorRegistry. By default, the "gzip" compressor will be available.
    It is only safe to call this if the server supports the compression format chosen. There is no negotiation performed; if the server does not support the compression chosen, the call will fail.
  - withDeadline
```
public CallOptions withDeadline(@Nullable
                                Deadline deadline)
```
    Returns a new CallOptions with the given absolute deadline.
    This is mostly used for propagating an existing deadline. withDeadlineAfter(long, java.util.concurrent.TimeUnit) is the recommended way of setting a new deadline,
    
    Parameters:
    
    deadline - the deadline or null for unsetting the deadline.
  - withDeadlineAfter
```
public CallOptions withDeadlineAfter(long duration,
                                     TimeUnit unit)
```
    Returns a new CallOptions with a deadline that is after the given duration from now.
  - getDeadline
```
@Nullable
public Deadline getDeadline()
```
    Returns the deadline or null if the deadline is not set.
  - withWaitForReady
```
public CallOptions withWaitForReady()
```
    Enables 'wait for ready' for the call. Wait-for-ready queues the RPC until a connection is available. This may dramatically increase the latency of the RPC, but avoids failing "unnecessarily." The default queues the RPC until an attempt to connect has completed, but fails RPCs without sending them if unable to connect.
  - withoutWaitForReady
```
public CallOptions withoutWaitForReady()
```
    Disables 'wait for ready' feature for the call. This method should be rarely used because the default is without 'wait for ready'.
  - withOnReadyThreshold
```
@ExperimentalApi("https://github.com/grpc/grpc-java/issues/11021")
public CallOptions withOnReadyThreshold(int numBytes)
```
    Specifies how many bytes must be queued before the call is considered not ready to send more messages.
    
    Parameters:
    
    numBytes - The number of bytes that must be queued. Must be a positive integer.
  - clearOnReadyThreshold
```
@ExperimentalApi("https://github.com/grpc/grpc-java/issues/11021")
public CallOptions clearOnReadyThreshold()
```
    Resets to the default number of bytes that must be queued before the call will leave the 'wait for ready' state.
  - getOnReadyThreshold
```
@Nullable
@ExperimentalApi("https://github.com/grpc/grpc-java/issues/11021")
public Integer getOnReadyThreshold()
```
    Returns to the default number of bytes that must be queued before the call will leave the 'wait for ready' state.
    
    Returns:
    
    null if the default threshold is used.
  - getCompressor
```
@Nullable
public String getCompressor()
```
    Returns the compressor's name.
  - getAuthority
```
@Nullable
@ExperimentalApi("https://github.com/grpc/grpc-java/issues/1767")
public String getAuthority()
```
    Override the HTTP/2 authority the channel claims to be connecting to. This is not generally safe. Overriding allows advanced users to re-use a single Channel for multiple services, even if those services are hosted on different domain names. That assumes the server is virtually hosting multiple domains and is guaranteed to continue doing so. It is rare for a service provider to make such a guarantee. At this time, there is no security verification of the overridden value, such as making sure the authority matches the server's TLS certificate.
  - getCredentials
```
@Nullable
public CallCredentials getCredentials()
```
    Returns the call credentials.
  - withExecutor
```
public CallOptions withExecutor(@Nullable
                                Executor executor)
```
    Returns a new CallOptions with executor to be used instead of the default executor specified with ManagedChannelBuilder.executor(java.util.concurrent.Executor).
  - withStreamTracerFactory
```
@ExperimentalApi("https://github.com/grpc/grpc-java/issues/2861")
public CallOptions withStreamTracerFactory(ClientStreamTracer.Factory factory)
```
    Returns a new CallOptions with a ClientStreamTracerFactory in addition to the existing factories.
    This method doesn't replace existing factories, or try to de-duplicate factories.
  - getStreamTracerFactories
```
@ExperimentalApi("https://github.com/grpc/grpc-java/issues/2861")
public List<ClientStreamTracer.Factory> getStreamTracerFactories()
```
    Returns an immutable list of ClientStreamTracerFactorys.
  - withOption
```
public <T> CallOptions withOption(CallOptions.Key<T> key,
                                  T value)
```
    Sets a custom option. Any existing value for the key is overwritten.
    
    Parameters:
    
    key - The option key
    
    value - The option value.
    
    Since:
    
    1.13.0
  - getOption
```
@ExperimentalApi("https://github.com/grpc/grpc-java/issues/1869")
public <T> T getOption(CallOptions.Key<T> key)
```
    Get the value for a custom option or its inherent default.
    
    Parameters:
    
    key - Key identifying option
  - getExecutor
```
@Nullable
public Executor getExecutor()
```
    Returns the executor override to use for this specific call, or null if there is no override. The executor is only for servicing this one call, so is not safe to use after ClientCall.Listener.onClose(io.grpc.Status, io.grpc.Metadata).
  - isWaitForReady
```
public boolean isWaitForReady()
```
    Returns whether 'wait for ready' option is enabled for the call. 'Fail fast' is the default option for gRPC calls and 'wait for ready' is the opposite to it.
  - withMaxInboundMessageSize
```
@ExperimentalApi("https://github.com/grpc/grpc-java/issues/2563")
public CallOptions withMaxInboundMessageSize(int maxSize)
```
    Sets the maximum allowed message size acceptable from the remote peer. If unset, this will default to the value set on the ManagedChannelBuilder.maxInboundMessageSize(int).
  - withMaxOutboundMessageSize
```
@ExperimentalApi("https://github.com/grpc/grpc-java/issues/2563")
public CallOptions withMaxOutboundMessageSize(int maxSize)
```
    Sets the maximum allowed message size acceptable sent to the remote peer.
  - getMaxInboundMessageSize
```
@Nullable
@ExperimentalApi("https://github.com/grpc/grpc-java/issues/2563")
public Integer getMaxInboundMessageSize()
```
    Gets the maximum allowed message size acceptable from the remote peer.
  - getMaxOutboundMessageSize
```
@Nullable
@ExperimentalApi("https://github.com/grpc/grpc-java/issues/2563")
public Integer getMaxOutboundMessageSize()
```
    Gets the maximum allowed message size acceptable to send the remote peer.
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object

Class CallOptions

Nested Class Summary

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

DEFAULT

Method Detail

withAuthority

withCallCredentials

withCompression

withDeadline

withDeadlineAfter

getDeadline

withWaitForReady

withoutWaitForReady

withOnReadyThreshold

clearOnReadyThreshold

getOnReadyThreshold

getCompressor

getAuthority

getCredentials

withExecutor

withStreamTracerFactory

getStreamTracerFactories

withOption

getOption

getExecutor

isWaitForReady

withMaxInboundMessageSize

withMaxOutboundMessageSize

getMaxInboundMessageSize

getMaxOutboundMessageSize

toString