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A general and simple library for Android

There is a newer version: 1.10.1

/*
 * Copyright (C) 2015 HaiYang Li
 *
 * Licensed 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 com.landawn.abacus;

import com.landawn.abacus.util.u.Optional;
import com.landawn.abacus.util.stream.Stream;

/**
 * 
 * @since 0.8
 * 
 * @author Haiyang Li
 */
public interface PaginatedDataSet extends Iterable {
    /**
     * Method currentPage.
     * 
     * @return DataSet
     */
    DataSet currentPage();

    /**
     * Method previousPage.
     * 
     * @return DataSet
     */
    DataSet previousPage();

    /**
     * 
     * @return
     */
    boolean hasNext();

    /**
     * Method nextPage.
     * 
     * @return DataSet
     */
    DataSet nextPage();

    /**
     * Returns the first page.
     * 
     * @return DataSet
     */
    Optional firstPage();

    /**
     * Returns the last page.
     * 
     * @return DataSet
     */
    Optional lastPage();

    /**
     * Method getPage.
     * 
     * @param pageNum
     * @throws IllegalArgumentException
     */
    DataSet getPage(int pageNum);

    /**
     * Method absolute.
     * 
     * @param pageNum
     */
    PaginatedDataSet absolute(int pageNum);

    /**
     * Method currentPageNum.
     * 
     * @return int
     */
    int currentPageNum();

    /**
     * Method pageLength.
     * 
     * @return int
     */
    int pageSize();

    /**
     * Method pageCount.
     * 
     * @return int
     */
    int pageCount();

    Stream stream();
}