org.danilopianini.lang

Class StreamUtils

java.lang.Object

org.danilopianini.lang.StreamUtils

public final class StreamUtils
extends Object

Complementary utilities for the Java 8 Stream library.

Constructor Summary

Constructors

Modifier	Constructor and Description
private	StreamUtils()

Method Summary

Modifier and Type	Method and Description
static <E> Stream<E>	flatten(E target, Function<? super E,? extends Stream<? extends E>> extractor) Flattens a recursive, non circular data structure into a Stream.

Methods inherited from class java.lang.Object

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

Constructor Detail

StreamUtils

private StreamUtils()

Method Detail

flatten

public static <E> Stream<E> flatten(E target,
                                    Function<? super E,? extends Stream<? extends E>> extractor)

Flattens a recursive, non circular data structure into a Stream.

Type Parameters:

E - the type of object

Parameters:

target - the root element of the structure

extractor - the function that maps a node of the structure to a stream of its children

Returns:

a Stream walking through the data structure