DoFnInvokers (core 2.44.0 API)

java.lang.Object
- org.apache.beam.sdk.transforms.reflect.DoFnInvokers

@Internal
public class DoFnInvokers
extends java.lang.Object

Static utilities for working with DoFnInvoker.

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static <InputT,OutputT> DoFnInvoker<InputT,OutputT>`	`invokerFor(DoFn<InputT,OutputT> fn)`	Returns an `DoFnInvoker` for the given `DoFn`, using a default choice of `DoFnInvokerFactory`.
`static <InputT,OutputT> DoFnInvoker<InputT,OutputT>`	`tryInvokeSetupFor(DoFn<InputT,OutputT> fn, PipelineOptions options)`	Tries to invoke setup on the given `DoFn`.

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

- Method Detail
  - invokerFor
```
public static <InputT,OutputT> DoFnInvoker<InputT,OutputT> invokerFor(DoFn<InputT,OutputT> fn)
```
    Returns an DoFnInvoker for the given DoFn, using a default choice of DoFnInvokerFactory.
    The default is permitted to change at any time. Users of this method may not depend on any details DoFnInvokerFactory-specific details of the invoker. Today it is ByteBuddyDoFnInvokerFactory.
  - tryInvokeSetupFor
```
public static <InputT,OutputT> DoFnInvoker<InputT,OutputT> tryInvokeSetupFor(DoFn<InputT,OutputT> fn,
                                                                                         PipelineOptions options)
```
    Tries to invoke setup on the given DoFn. If setup throws any exception, the given DoFn will be torn down immediately and the exception rethrown.
    On success returns an DoFnInvoker for the given DoFn.