org.aksw.commons.collections.utils

Class StreamUtils

java.lang.Object

org.aksw.commons.collections.utils.StreamUtils

public class StreamUtils
extends Object

Constructor Summary

Constructors

Constructor and Description
StreamUtils()

Method Summary

Modifier and Type	Method and Description
static <T> java.util.stream.Stream<T>	appendAction(java.util.stream.Stream<? extends T> stream, Runnable runnable) Creates a new stream which upon reaching its end performs and action.
static <T> java.util.stream.Stream<List<T>>	mapToBatch(java.util.stream.Stream<T> stream, int batchSize) Note we could implement another version where each batch's List is lazy loaded from the stream - but this would probably require complete consumption of each batch in order
static <S,X> java.util.stream.Stream<X>	stream(java.util.function.BiConsumer<S,java.util.function.Consumer<X>> fn, S baseSolution)

Methods inherited from class java.lang.Object

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

Constructor Detail

StreamUtils

public StreamUtils()

Method Detail

mapToBatch

public static <T> java.util.stream.Stream<List<T>> mapToBatch(java.util.stream.Stream<T> stream,
                                                              int batchSize)

Note we could implement another version where each batch's List is lazy loaded from the stream - but this would probably require complete consumption of each batch in order

Parameters:

stream -

batchSize -

Returns:

appendAction

public static <T> java.util.stream.Stream<T> appendAction(java.util.stream.Stream<? extends T> stream,
                                                          Runnable runnable)

Creates a new stream which upon reaching its end performs and action. It concatenates the original stream with one having a single item that is filtered out again. The action is run as- part of the filter.

Parameters:

stream -

runnable -

Returns:

stream

public static <S,X> java.util.stream.Stream<X> stream(java.util.function.BiConsumer<S,java.util.function.Consumer<X>> fn,
                                                      S baseSolution)