/**
*
* Copyright (c) 2006-2017, Speedment, Inc. All Rights Reserved.
*
* Licensed 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 com.speedment.common.mutablestream.terminate;
import com.speedment.common.mutablestream.HasNext;
import com.speedment.common.mutablestream.internal.terminate.CollectTerminatorImpl;
import java.util.function.BiConsumer;
import java.util.function.Supplier;
import java.util.stream.Collector;
import java.util.stream.Stream;
/**
*
* @param <T> the terminated stream type
* @param <A> the intermediary collector type
* @param <R> the resulting type
*
* @author Emil Forslund
* @since 1.0.0
*/
public interface CollectTerminator<T, A, R> extends Terminator<T, Stream<T>, R> {
Collector<T, A, R> getCollector();
static <T, R> CollectTerminator<T, R, R> create(
HasNext<T, Stream<T>> previous,
boolean parallel,
Supplier<R> supplier,
BiConsumer<R, ? super T> accumulator,
BiConsumer<R, R> combiner) {
@SuppressWarnings("unchecked")
final Collector<T, R, R> collector = (Collector<T, R, R>)
Collector.of(supplier, accumulator, (a, b) -> {
combiner.accept(a, b);
return a;
});
return create(previous, parallel, collector);
}
static <T, A, R> CollectTerminator<T, A, R> create(
HasNext<T, Stream<T>> previous,
boolean parallel,
Collector<T, A, R> collector) {
return new CollectTerminatorImpl<>(previous, parallel, collector);
}
}