io.virtdata.basicsmappers.stateful

Class Swap

java.lang.Object

io.virtdata.basicsmappers.stateful.Swap

All Implemented Interfaces:

Function<Object,Object>

public class Swap
extends Object
implements Function<Object,Object>

Load a named value from the per-thread state map. The previous input value will be stored in the named value, and the previously stored value will be returned. A default value to return may be provided in case there was no previously stored value under the given name.

Constructor Summary

Constructors

Constructor and Description
Swap(Function<Object,Object> nameFunc)
Swap(Function<Object,Object> nameFunc, Object defaultValue)
Swap(String name)
Swap(String name, Object defaultValue)

Method Summary

Modifier and Type	Method and Description
Object	apply(Object o)

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.function.Function

andThen, compose, identity

Constructor Detail

Swap

public Swap(String name)

Swap

public Swap(String name,
            Object defaultValue)

Swap

public Swap(Function<Object,Object> nameFunc)

Swap

public Swap(Function<Object,Object> nameFunc,
            Object defaultValue)

Method Detail

apply

public Object apply(Object o)

Specified by:

apply in interface Function<Object,Object>