DoFnSignature.OnTimerMethod (core 2.44.0 API)

java.lang.Object
- org.apache.beam.sdk.transforms.reflect.DoFnSignature.OnTimerMethod

All Implemented Interfaces:

DoFnSignature.DoFnMethod, DoFnSignature.MethodWithExtraParameters

Enclosing class:

DoFnSignature
```
public abstract static class DoFnSignature.OnTimerMethod
extends java.lang.Object
implements DoFnSignature.MethodWithExtraParameters
```
Describes a DoFn.OnTimer method.

Constructor Summary

Constructors
Constructor Description

OnTimerMethod()

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`abstract java.util.List<DoFnSignature.Parameter>`	`extraParameters()`	Types of optional parameters of the annotated method, in the order they appear.
`abstract java.lang.String`	`id()`	The id on the method's `DoFn.TimerId` annotation.
`abstract boolean`	`requiresStableInput()`	Whether this method requires stable input, expressed via `DoFn.RequiresStableInput`.
`abstract java.lang.reflect.Method`	`targetMethod()`	The annotated method itself.
`abstract @Nullable TypeDescriptor<? extends BoundedWindow>`	`windowT()`	The window type used by this method, if any.

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

Methods inherited from interface org.apache.beam.sdk.transforms.reflect.DoFnSignature.MethodWithExtraParameters
observesWindow

- Constructor Detail
  - OnTimerMethod
```
public OnTimerMethod()
```
- Method Detail
  - id
```
public abstract java.lang.String id()
```
    The id on the method's DoFn.TimerId annotation.
  - targetMethod
```
public abstract java.lang.reflect.Method targetMethod()
```
    The annotated method itself.
    
    Specified by:
    
    targetMethod in interface DoFnSignature.DoFnMethod
  - requiresStableInput
```
public abstract boolean requiresStableInput()
```
    Whether this method requires stable input, expressed via DoFn.RequiresStableInput. For timers, this means that any state must be stably persisted prior to calling it.
  - windowT
```
public abstract @Nullable TypeDescriptor<? extends BoundedWindow> windowT()
```
    The window type used by this method, if any.
    
    Specified by:
    
    windowT in interface DoFnSignature.MethodWithExtraParameters
  - extraParameters
```
public abstract java.util.List<DoFnSignature.Parameter> extraParameters()
```
    Types of optional parameters of the annotated method, in the order they appear.
    
    Specified by:
    
    extraParameters in interface DoFnSignature.MethodWithExtraParameters