com.codingopus.guava.custom.collectors.ImmutableMultisetCollector.java Source code

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Here is the source code for com.codingopus.guava.custom.collectors.ImmutableMultisetCollector.java

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/*
 * Copyright 2016 Bharat Savani
 *
 *  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.codingopus.guava.custom.collectors;

import java.util.stream.Collector;

import com.google.common.collect.ImmutableMultiset;

public final class ImmutableMultisetCollector<T> {

    public static <T> Collector<T, ImmutableMultiset.Builder<T>, ImmutableMultiset<T>> toImmutableMultisetCollector() {

        return Collector.of(ImmutableMultiset.Builder<T>::new, ImmutableMultiset.Builder<T>::add,
                (l, r) -> l.addAll(r.build()), ImmutableMultiset.Builder<T>::build);
    }

}