com.github.andrewoma.dexx.collection

Class IdentityKeyFunction<E>

java.lang.Object

com.github.andrewoma.dexx.collection.IdentityKeyFunction<E>

All Implemented Interfaces:

KeyFunction<E,E>

public class IdentityKeyFunction<E>
extends java.lang.Object
implements KeyFunction<E,E>

IdentityKeyFunction is a KeyFunction where the value can be used as a key.

This is useful in DerivedKeyHashMap instances where the value defines equals() and hashCode() methods that only use the key.

Constructor Summary

Constructors

Constructor and Description
IdentityKeyFunction()

Method Summary

Modifier and Type	Method and Description
E	key(E value)

Methods inherited from class java.lang.Object

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

Constructor Detail

IdentityKeyFunction

public IdentityKeyFunction()

Method Detail

key

@NotNull
public E key(@NotNull
                      E value)

Specified by:

key in interface KeyFunction<E,E>