org.apache.flink.streaming.runtime.streamrecord

Class StreamRecord<T>

java.lang.Object

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

All Implemented Interfaces:

Serializable

public class StreamRecord<T>
extends Object
implements Serializable

Object for wrapping a tuple or other object with ID used for sending records between streaming task in Apache Flink stream processing.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
boolean	isTuple

Constructor Summary

Constructors

Constructor and Description
StreamRecord() Creates an empty StreamRecord

Method Summary

Modifier and Type	Method and Description
Object	getField(int pos) Gets the field of the contained object at the given position.
<R> R	getKey(org.apache.flink.api.java.functions.KeySelector<T,R> keySelector) Extracts key for the stored object using the keySelector provided.
T	getObject() Gets the wrapped object from the StreamRecord
StreamRecord<T>	setObject(T object) Sets the object stored
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

isTuple

public boolean isTuple

Constructor Detail

StreamRecord

public StreamRecord()

Creates an empty StreamRecord

Method Detail

getObject

public T getObject()

Gets the wrapped object from the StreamRecord

Returns:

The object wrapped

getField

public Object getField(int pos)

Gets the field of the contained object at the given position. If a tuple is wrapped then the getField method is invoked. If the StreamRecord contains and object of Basic types only position 0 could be returned.

Parameters:

pos - Position of the field to get.

Returns:

Returns the object contained in the position.

getKey

public <R> R getKey(org.apache.flink.api.java.functions.KeySelector<T,R> keySelector)

Extracts key for the stored object using the keySelector provided.

Parameters:

keySelector - KeySelector for extracting the key

Returns:

The extracted key

setObject

public StreamRecord<T> setObject(T object)

Sets the object stored

Parameters:

object - Object to set

Returns:

Returns the StreamRecord object

toString

public String toString()

Overrides:

toString in class Object