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/*******************************************************************************
 * Copyright (c) 2010-2020 Haifeng Li. All rights reserved.
 *
 * Smile is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 3 of
 * the License, or (at your option) any later version.
 *
 * Smile is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with Smile.  If not, see .
 ******************************************************************************/

package smile.nlp.dictionary;

import java.util.Iterator;

/**
 * A dictionary is a set of words in some natural language.
 *
 * @author Haifeng Li. All rights reserved.
 */
public interface Dictionary {

    /**
     * Returns true if this dictionary contains the specified word.
     */
    boolean contains(String word);

    /**
     * Returns the number of elements in this dictionary.
     */
    int size();

    /**
     * Returns an iterator over the elements in this dictionary.
     */
    Iterator iterator();
}