com.google.cloud.dataflow.sdk.util

Class TimerOrElement<ElemT>

java.lang.Object

com.google.cloud.dataflow.sdk.util.TimerOrElement<ElemT>

Type Parameters:

ElemT - the element type

public class TimerOrElement<ElemT>
extends Object

Class representing either a timer, or arbitrary element. Used as the input type of StreamingGroupAlsoByWindowsDoFn.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	TimerOrElement.TimerOrElementCoder<T> Coder that forwards ByteSizeObserver calls to an underlying element coder.

Method Summary

Modifier and Type	Method and Description
ElemT	element() If this is an element, returns it, otherwise throws an exception.
static <ElemT> TimerOrElement<ElemT>	element(ElemT element) Creates a new TimerOrElement<ElemT> representing an element.
boolean	equals(Object other)
TimerInternals.TimerData	getTimer() If this is a timer, returns the associated TimerInternals.TimerData.
int	hashCode()
boolean	isTimer() Returns whether this is a timer or an element.
Object	key() If this is a timer, returns its key, otherwise throws an exception.
static <ElemT> TimerOrElement<ElemT>	timer(Object key, TimerInternals.TimerData timerData) Creates a new TimerOrElement<ElemT> representing a timer.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Method Detail

timer

public static <ElemT> TimerOrElement<ElemT> timer(Object key,
                                                  TimerInternals.TimerData timerData)

Creates a new TimerOrElement<ElemT> representing a timer.

Type Parameters:

ElemT - the element type

element

public static <ElemT> TimerOrElement<ElemT> element(ElemT element)

Creates a new TimerOrElement<ElemT> representing an element.

Type Parameters:

ElemT - the element type

isTimer

public boolean isTimer()

Returns whether this is a timer or an element.

getTimer

public TimerInternals.TimerData getTimer()

If this is a timer, returns the associated TimerInternals.TimerData. Otherwise, throws an exception.

key

public Object key()

If this is a timer, returns its key, otherwise throws an exception.

element

public ElemT element()

If this is an element, returns it, otherwise throws an exception.

equals

public boolean equals(Object other)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object