| /* |
| // Licensed to Julian Hyde under one or more contributor license |
| // agreements. See the NOTICE file distributed with this work for |
| // additional information regarding copyright ownership. |
| // |
| // Julian Hyde licenses this file to you under the Apache License, |
| // Version 2.0 (the "License"); you may not use this file except in |
| // compliance with the License. You may obtain a copy of the License at: |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| */ |
| package net.hydromatic.lambda.streams; |
| |
| import net.hydromatic.lambda.functions.*; |
| |
| /** |
| * Operations on streams. |
| * |
| * <p>Based on {@code java.util.streams.SequentialStreamOps}.</p> |
| */ |
| public interface SequentialStreamOps<T> { |
| Stream<T> filter(Predicate<? super T> predicate); |
| |
| <R> Stream<R> map(Mapper<? super T, ? extends R> mapper); |
| |
| <R> Stream<R> flatMap(FlatMapper<? super T, R> mapper); |
| |
| T reduce(T base, BinaryOperator<T> op); |
| |
| <U> U fold(Factory<U> seedFactory, Combiner<U, T, U> reducer, |
| BinaryOperator<U> combiner); |
| |
| boolean anyMatch(Predicate<? super T> predicate); |
| |
| boolean allMatch(Predicate<? super T> predicate); |
| |
| boolean noneMatch(Predicate<? super T> predicate); |
| } |
| |
| // End SequentialStreamOps.java |