/**
*
* 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.internal.action;
import com.speedment.common.mutablestream.HasNext;
import com.speedment.common.mutablestream.action.Action;
import com.speedment.common.mutablestream.action.FlatMapLongAction;
import java.util.function.LongFunction;
import java.util.stream.BaseStream;
import java.util.stream.LongStream;
import static java.util.Objects.requireNonNull;
/**
*
* @author Emil Forslund
* @since 1.0.0
*/
public final class FlatMapLongActionImpl
extends AbstractAction<Long, LongStream, Long, LongStream>
implements FlatMapLongAction {
private final LongFunction<LongStream> mapper;
public FlatMapLongActionImpl(HasNext<Long, LongStream> previous, LongFunction<LongStream> mapper) {
super(previous);
this.mapper = requireNonNull(mapper);
}
@Override
public LongFunction<LongStream> getMapper() {
return mapper;
}
@Override
public <Q, QS extends BaseStream<Q, QS>> HasNext<Q, QS> append(Action<Long, LongStream, Q, QS> next) {
return next;
}
@Override
public LongStream build(boolean parallel) {
return previous().build(parallel).flatMap(mapper);
}
}