Package ch.tocco.nice2.optional.qualification.impl.util.entities

Class TreeHelper

java.lang.Object

ch.tocco.nice2.optional.qualification.impl.util.entities.TreeHelper

public class TreeHelper
extends Object

Method Summary

Modifier and Type	Method	Description
static <I, R> Optional<R>	findInRoot(I input, Function<I,R> dataFunction, Function<I,I> parentFunction)	tries to load data for some input, and falls back up the tree if nothing could be found

Methods inherited from class java.lang.Object

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

Method Details

findInRoot

public static <I,
R> Optional<R> findInRoot(I input,
 Function<I,R> dataFunction,
 Function<I,I> parentFunction)

tries to load data for some input, and falls back up the tree if nothing could be found

Type Parameters:

I - the class of the nodes

R - the class of the data

Parameters:

input - the starting node

dataFunction - a function that loads some data

parentFunction - a function the loads the parent of a node

Returns:

an Optional containing the first non-null value in the tree