Package com.hazelcast.jet.datamodel

Class KeyedWindowResult<K,R>

java.lang.Object

com.hazelcast.jet.datamodel.WindowResult<R>

com.hazelcast.jet.datamodel.KeyedWindowResult<K,R>

Type Parameters:

K - type of the grouping key

R - type of the aggregated result

All Implemented Interfaces:

Map.Entry<K,R>

public final class KeyedWindowResult<K,R>
extends WindowResult<R>
implements Map.Entry<K,R>

Holds the result of a group-and-aggregate operation performed over a time window.

Since:

Jet 3.0

Constructor Summary

Constructors

Constructor	Description
KeyedWindowResult(long start, long end, K key, R result)	Constructs a keyed window result that is not early.
KeyedWindowResult(long start, long end, K key, R result, boolean isEarly)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object obj)
K	getKey()	Alias for key, implements Map.Entry.
R	getValue()	Alias for WindowResult.result(), implements Map.Entry.
int	hashCode()
K	key()	Returns the grouping key.
R	setValue(R value)	Implements Map.Entry, throws UnsupportedOperationException.
String	toString()

Methods inherited from class com.hazelcast.jet.datamodel.WindowResult

end, isEarly, result, start

Methods inherited from class java.lang.Object

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

Constructor Details

KeyedWindowResult

public KeyedWindowResult(long start,
 long end,
 @Nonnull
 K key,
 @Nonnull
 R result,
 boolean isEarly)

Parameters:

start - start time of the window

end - end time of the window

key - grouping key

result - result of aggregation

isEarly - whether this is an early result, to be followed by the final one

KeyedWindowResult

public KeyedWindowResult(long start,
 long end,
 @Nonnull
 K key,
 @Nonnull
 R result)

Constructs a keyed window result that is not early.

Parameters:

start - start time of the window

end - end time of the window

key - grouping key

result - result of aggregation

Method Details

key

@Nonnull
public K key()

Returns the grouping key.

getKey

@Nonnull
public K getKey()

Alias for key, implements Map.Entry.

Specified by:

getKey in interface Map.Entry<K,R>

getValue

@Nonnull
public R getValue()

Alias for WindowResult.result(), implements Map.Entry.

Specified by:

getValue in interface Map.Entry<K,R>

setValue

public R setValue(R value)

Implements Map.Entry, throws UnsupportedOperationException.

Specified by:

setValue in interface Map.Entry<K,R>

equals

public boolean equals(Object obj)

Specified by:

equals in interface Map.Entry<K,R>

Overrides:

equals in class WindowResult<R>

hashCode

public int hashCode()

Specified by:

hashCode in interface Map.Entry<K,R>

Overrides:

hashCode in class WindowResult<R>

toString

public String toString()

Overrides:

toString in class WindowResult<R>