org.apache.flink.streaming.runtime.streamrecord

Class StreamRecord<T>

java.lang.Object

org.apache.flink.streaming.runtime.streamrecord.StreamElement

org.apache.flink.streaming.runtime.streamrecord.StreamRecord<T>

Type Parameters:

T - The type encapsulated with the stream record.

public class StreamRecord<T>
extends StreamElement

One value in a data stream. This stores the value and the associated timestamp.

Constructor Summary

Constructors

Constructor and Description
StreamRecord(T value) Creates a new StreamRecord wrapping the given value.
StreamRecord(T value, long timestamp) Creates a new StreamRecord wrapping the given value.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	equals(Object o)
long	getTimestamp() Returns the timestamp associated with this stream value in milliseconds.
T	getValue() Returns the value wrapped in this stream value.
int	hashCode()
<X> StreamRecord<X>	replace(X element) Replace the currently stored value by the given new value.
<X> StreamRecord<X>	replace(X value, long timestamp) Replace the currently stored value by the given new value and the currently stored timestamp with the new timestamp.
String	toString()

Methods inherited from class org.apache.flink.streaming.runtime.streamrecord.StreamElement

asRecord, asWatermark, isRecord, isWatermark

Methods inherited from class java.lang.Object

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

Constructor Detail

StreamRecord

public StreamRecord(T value)

Creates a new StreamRecord wrapping the given value. The timestamp is set to the result of new Instant(0).

StreamRecord

public StreamRecord(T value,
            long timestamp)

Creates a new StreamRecord wrapping the given value. The timestamp is set to the given timestamp.

Parameters:

value - The value to wrap in this StreamRecord

timestamp - The timestamp in milliseconds

Method Detail

getValue

public T getValue()

Returns the value wrapped in this stream value.

getTimestamp

public long getTimestamp()

Returns the timestamp associated with this stream value in milliseconds.

replace

public <X> StreamRecord<X> replace(X element)

Replace the currently stored value by the given new value. This returns a StreamElement with the generic type parameter that matches the new value while keeping the old timestamp.

Parameters:

element - Element to set in this stream value

Returns:

Returns the StreamElement with replaced value

replace

public <X> StreamRecord<X> replace(X value,
                          long timestamp)

Replace the currently stored value by the given new value and the currently stored timestamp with the new timestamp. This returns a StreamElement with the generic type parameter that matches the new value.

Parameters:

value - The new value to wrap in this StreamRecord

timestamp - The new timestamp in milliseconds

Returns:

Returns the StreamElement with replaced value

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object