MergedEnumeration.java

/*
 * Copyright 2015 Red Hat, Inc. and/or its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * 
 *      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.eclipse.webdav.internal.kernel.utils;

import java.util.Enumeration;

public class MergedEnumeration extends EnumerationFilter {

    protected Enumeration first;
    protected Enumeration second;

    /**
     * MergedEnumeration constructor comment.
     */
    public MergedEnumeration(Enumeration first, Enumeration second) {
        super();
        this.first = first;
        this.second = second;
    }

    public boolean hasMoreElements() {
        return (first.hasMoreElements() || second.hasMoreElements());
    }

    public Object nextElement() {
        if (first.hasMoreElements())
            return first.nextElement();
        return second.nextElement();
    }
}