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package cdc.mf.model;

import java.util.Comparator;
import java.util.Objects;
import java.util.function.Predicate;

import cdc.util.strings.StringUtils;

/**
 * Interface of elements that have an optional name.
 * 
 * All elements, except {@link MfDocumentation} can have a name.
 *
 * @author Damien Carbonne
 */
public interface MfNameItem extends MfElement {
    public static final Comparator NAME_COMPARATOR =
            Comparator.comparing(x -> x.getName() == null ? "" : x.getName());

    public static Predicate named(String name) {
        return x -> Objects.equals(name, x.getName());
    }

    /**
     * @return The name or {@code null}.
     */
    public String getName();

    public default boolean hasName() {
        return !StringUtils.isNullOrEmpty(getName());
    }
}