*
 * @author higa
 * @param <T> the element type
 */
public class IteratorEnumeration<T> implements Enumeration<T> {

    /** 反復子 */
    protected final Iterator<T> iterator;

    /**
     * Creates an {@link IteratorEnumeration}.
     *
     * @param iterator the iterator (must not be {@literal null})
     */
    public IteratorEnumeration(final Iterator<T> iterator) {
        assertArgumentNotNull("iterator", iterator);

package org.codelibs.core.collection;

import java.util.Enumeration;

/**
 * An empty {@link Enumeration}.
 *
 * @author higa
 * @param <T> the type of elements
 */
public class EmptyEnumeration<T> extends IteratorEnumeration<T> {

    /**
     * Creates an {@link EmptyEnumeration}.
     */
    public EmptyEnumeration() {
        super(new EmptyIterator<T>());
    }