org.dbrain.data

Class Lookups

java.lang.Object

org.dbrain.data.Lookups

public class Lookups
extends Object

Created by epoitras on 03/06/14.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Lookups.LookupBuilder<FROM,TO> Builder for Lookup.

Constructor Summary

Constructors

Constructor and Description
Lookups()

Method Summary

Modifier and Type	Method and Description
static <FROM,TO> Lookup<TO,FROM>	inverse(Lookup<FROM,TO> lookup) Inverse an existing lookup table.
static <FROM,TO> Lookups.LookupBuilder<FROM,TO>	map(FROM fromValue, TO toValue) Build a lookup table, providing initial values.

Methods inherited from class java.lang.Object

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

Constructor Detail

Lookups

public Lookups()

Method Detail

map

public static <FROM,TO> Lookups.LookupBuilder<FROM,TO> map(FROM fromValue,
                                                           TO toValue)

Build a lookup table, providing initial values.

Parameters:

fromValue - initial from value.

toValue - initial to value.

Returns:

A Builder to continue building a lookup.

inverse

public static <FROM,TO> Lookup<TO,FROM> inverse(Lookup<FROM,TO> lookup)

Inverse an existing lookup table. Please note that fails if multiple from values map to the same to value.

Parameters:

lookup - The lookup to inverse.

Returns:

An inverse lookup.