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A Gson based library for parsing and serializing CityJSON

There is a newer version: 1.2.0

/*
 * citygson - A Gson based library for parsing and serializing CityJSON
 * https://github.com/citygml4j/citygson
 *
 * citygson is part of the citygml4j project
 *
 * Copyright 2018-2019 Claus Nagel 
 *
 * 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 org.citygml4j.cityjson.geometry;

import java.util.ArrayList;
import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.Stream;

public class SolidCollectionSemanticsObject extends AbstractSemanticsObject {
	private List>> values;

	public boolean isSetValues() {
		return values != null;
	}

	public void addValues(List> value) {
		if (values == null)
			values = new ArrayList<>();

		values.add(value);
	}

	@Override
	public void addNullValue() {
		addValues(null);
	}

	public List>> getValues() {
		return values;
	}

	public void setValues(List>> values) {
		this.values = values;
	}

	@Override
	public void unsetValues() {
		values = null;
	}

	@Override
	public int getNumValues() {
		return values != null ? values.size() : 0;
	}

	@Override
	public List flatValues() {
		return values != null ? values.stream()
				.flatMap(a -> a != null ? a.stream() : Stream.of((List)null))
				.flatMap(b -> b != null ? b.stream() : Stream.of((Integer)null)).collect(Collectors.toList()) : null;
	}

}