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 *    ___) | |_) | |  | | | | | (_| || || |_| | |  | |_) | (_) |
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package spring.turbo.bean;

import org.springframework.lang.Nullable;
import spring.turbo.lang.Immutable;
import spring.turbo.util.StringPool;
import spring.turbo.util.StringUtils;

import java.io.Serializable;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;

/**
 * @author 应卓
 * @see spring.turbo.format.NumberPairFormatter
 * @see spring.turbo.bean.jsr380.DecentNumberZones
 * @since 1.1.4
 */
@Immutable
public class NumberZones implements Iterable, Serializable {

    private final List list;

    /**
     * 构造方法
     */
    public NumberZones() {
        this(null);
    }

    /**
     * 构造方法
     *
     * @param list NumberPair
     */
    public NumberZones(@Nullable List list) {
        this.list = list != null ? Collections.unmodifiableList(list) : Collections.emptyList();
    }

    public boolean isEmpty() {
        return this.list.isEmpty();
    }

    public int size() {
        return this.list.size();
    }

    @Override
    public String toString() {
        return StringUtils.nullSafeJoin(this, StringPool.SEMICOLON);
    }

    @Override
    public Iterator iterator() {
        return list.iterator();
    }

}