package com.yahoo.shopping;import java.math.BigInteger;import java.util.List;public interface ProductSearchResults {    /**     * The number of products available.     *     * @return The number of products found by the search.     */    BigInteger getTotalResultsAvailable();    /**     * The number of products returned. This may be lower than the number of     * products requested if there were fewer products available.     *     * @return The number of products returned.     */    BigInteger getTotalResultsReturned();    /**     * The position of the first product.     *     * @return The position of the first product.     */    BigInteger getFirstResultPosition();    /**     * Gets any spelling suggestions for the query given.     *     * @return Spelling suggestions for the query given or null if     *         none were given.     */    String getSpellSuggestions();    /**     * The list of products from the request. The list returned may contain     * a mixture of com.yahoo.shopping.Catalog and com.yahoo.shopping.Offer     * objects.     *     * @return The list of products from the request.     */    List listResults();}