001/* -*- mode: Java; c-basic-offset: 2; indent-tabs-mode: nil; coding: utf-8-unix -*-
002 *
003 * Copyright © 2020 microBean™.
004 *
005 * Licensed under the Apache License, Version 2.0 (the "License");
006 * you may not use this file except in compliance with the License.
007 * You may obtain a copy of the License at
008 *
009 *     http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
014 * implied.  See the License for the specific language governing
015 * permissions and limitations under the License.
016 */
017package org.microbean.settings.converter;
018
019import java.util.LinkedHashSet;
020import java.util.Collections;
021import java.util.Set;
022
023import javax.enterprise.inject.Vetoed;
024
025import org.microbean.settings.Converter;
026
027@Vetoed
028public class SetConverter<T> extends CollectionConverter<Set<T>, T> {
029
030  private static final long serialVersionUID = 1L;
031
032  public SetConverter(final Converter<? extends T> scalarConverter) {
033    super(size -> size <= 0 ? Collections.emptySet() : new LinkedHashSet<>(),
034          Collections::unmodifiableSet,
035          scalarConverter);
036  }
037
038}