public abstract static class DoFnSignature.OnWindowExpirationMethod extends java.lang.Object implements DoFnSignature.MethodWithExtraParameters
DoFn.OnWindowExpiration
method.Constructor and Description |
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OnWindowExpirationMethod() |
Modifier and Type | Method and Description |
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abstract java.util.List<DoFnSignature.Parameter> |
extraParameters()
Types of optional parameters of the annotated method, in the order they appear.
|
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.
|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
observesWindow
public abstract java.lang.reflect.Method targetMethod()
targetMethod
in interface DoFnSignature.DoFnMethod
public abstract boolean requiresStableInput()
DoFn.RequiresStableInput
. For DoFn.OnWindowExpiration
, this means that any state must be
stably persisted prior to calling it.public abstract @Nullable TypeDescriptor<? extends BoundedWindow> windowT()
windowT
in interface DoFnSignature.MethodWithExtraParameters
public abstract java.util.List<DoFnSignature.Parameter> extraParameters()
extraParameters
in interface DoFnSignature.MethodWithExtraParameters