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JPMML class model

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/*
 * Copyright (c) 2013 KNIME.com AG, Zurich, Switzerland
 */
package org.dmg.pmml;

/**
 * 
 * A marker interface for PMML elements that specify the id attribute.
 * 
 *
 * 
 * In a collection of {@link HasId} elements, all non-null identifier values must be unique.
 * However, there may be multiple {@link HasId} elements with null identifier values.
 * 
 *
 * @see Indexable
 */
public interface HasId, V> {

	default
	boolean hasId(){
		V id = getId();

		return (id != null);
	}

	/**
	 * @return The value of the id attribute. Could be null.
	 */
	V getId();

	E setId(V id);
}