org.apache.kafka.streams.state

Class ValueAndTimestamp<V>

java.lang.Object

org.apache.kafka.streams.state.ValueAndTimestamp<V>

Type Parameters:

V -

public final class ValueAndTimestamp<V>
extends Object

Combines a value from a KeyValue with a timestamp.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o)
static <V> V	getValueOrNull(ValueAndTimestamp<V> valueAndTimestamp) Return the wrapped value of the given valueAndTimestamp parameter if the parameter is not null.
int	hashCode()
static <V> ValueAndTimestamp<V>	make(V value, long timestamp) Create a new ValueAndTimestamp instance if the provided value is not null.
static <V> ValueAndTimestamp<V>	makeAllowNullable(V value, long timestamp) Create a new ValueAndTimestamp instance.
long	timestamp()
String	toString()
V	value()

Methods inherited from class java.lang.Object

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

Method Detail

make

public static <V> ValueAndTimestamp<V> make(V value,
                                            long timestamp)

Create a new ValueAndTimestamp instance if the provided value is not null.

Type Parameters:

V - the type of the value

Parameters:

value - the value

timestamp - the timestamp

Returns:

a new ValueAndTimestamp instance if the provided value is not null; otherwise null is returned

makeAllowNullable

public static <V> ValueAndTimestamp<V> makeAllowNullable(V value,
                                                         long timestamp)

Create a new ValueAndTimestamp instance. The provided value may be null.

Type Parameters:

V - the type of the value

Parameters:

value - the value

timestamp - the timestamp

Returns:

a new ValueAndTimestamp instance

getValueOrNull

public static <V> V getValueOrNull(ValueAndTimestamp<V> valueAndTimestamp)

Return the wrapped value of the given valueAndTimestamp parameter if the parameter is not null.

Type Parameters:

V - the type of the value

Parameters:

valueAndTimestamp - a ValueAndTimestamp instance; can be null

Returns:

the wrapped value of valueAndTimestamp if not null; otherwise null

value

public V value()

timestamp

public long timestamp()

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object