org.apache.flink.util

Class Reference<T>

java.lang.Object

org.apache.flink.util.Reference<T>

Type Parameters:

T - type of the value

public final class Reference<T>
extends Object

Wrapper class that allows to express whether the value is borrowed or owned.

Method Summary

Modifier and Type	Method and Description
static <V> Reference<V>	borrowed(V value)
T	deref()
boolean	isOwned()
Optional<T>	owned() Returns the value if it is owned.
static <V> Reference<V>	owned(V value)
String	toString()

Methods inherited from class java.lang.Object

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

Method Detail

deref

public T deref()

owned

public Optional<T> owned()

Returns the value if it is owned.

isOwned

public boolean isOwned()

toString

public String toString()

Overrides:

toString in class Object

owned

public static <V> Reference<V> owned(V value)

borrowed

public static <V> Reference<V> borrowed(V value)