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API for the Tiles Request framework.

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/*
 * $Id: EnumeratedValuesExtractor.java 1064782 2011-01-28 17:08:52Z apetrelli $
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 * 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.apache.tiles.request.attribute;

import java.util.Enumeration;

/**
 * Allows to get values from multi-valued attributes.
 *
 * @version $Rev: 1064782 $ $Date: 2011-01-29 04:08:52 +1100 (Sat, 29 Jan 2011) $
 */
public interface EnumeratedValuesExtractor extends HasAddableKeys {

    /**
     * Returns the values stored at the given key.
     *
     * @param key The key of the attribute.
     * @return The values of the attribute.
     */
    Enumeration getValues(String key);
}