Methods removeFirstIf in Collection and skipFirst in Stream

[Alberto Otero Rodríguez]

Sorry for the links, the methods would be:

1) In Collection:
           default boolean removeFirstIf​(Predicate<? super E<https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/Collection.html>> filter)

2) In Stream:
           Stream<T> skipFirst(Predicate<? super T<https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/stream/Stream.html>> predicate)
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De: Alberto Otero Rodríguez
Enviado: viernes, 2 de julio de 2021 16:22
Para: core-libs-dev at openjdk.java.net <core-libs-dev at openjdk.java.net>
Asunto: Methods removeFirstIf in Collection and skipFirst in Stream

Hi,

I think it would be interesting adding the following methods:

1) In Collection:
           default boolean removeFirstIf​(Predicate<https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/function/Predicate.html><? super E<https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/Collection.html>> filter)

2) In Stream:
           Stream<https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/stream/Stream.html><T<https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/stream/Stream.html>> skipFirst(Predicate<https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/function/Predicate.html><? super T<https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/stream/Stream.html>> predicate)

The purpose of both methods would be the same. Deleting the first element in the collection that fulfills the predicate.

This could be useful in collections/streams with no duplicate elements where performance would be better than using removeIf from Collection of filter from Stream.

Regards,

Alberto.