com.syaku.commons.PageNavigator.java Source code

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Here is the source code for com.syaku.commons.PageNavigator.java

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/*
 * PageNavigator.java 2010.08.16
 *
 * Copyright (c) 2010, MEI By Seok Kyun. Choi. ()
 * http://syaku.tistory.com
 * 
 * GNU Lesser General Public License
 * http://www.gnu.org/licenses/lgpl.html
 */

package com.syaku.commons;

import org.apache.log4j.Logger;
import org.apache.commons.lang.*;

public class PageNavigator {
    private static Logger log = Logger.getLogger(PageNavigator.class);

    private int total_count = 0;
    private int page = 0, page_row = 0, page_link = 0;
    private int total_page = 0, start_page = 0, now_page = 0, end_page = 0, virtual_idx = 0;
    private int start_idx = 0;

    /**
    * @method : PageNavigator(parameter1,parameter2,parameter3)
    * @brief    
    * @parameters {
    parameter1 : (int)   
    parameter2 : (int)   
    parameter3 : (int)    
      }
    */
    public PageNavigator(int page, int page_row, int page_link) {

        this.page = page;
        this.page_row = page_row;
        if (this.page_link == 0)
            this.page_link = page_link;
    }

    /**
    * @method : setPageIndex
    * @brief   
    */

    public void setPageIndex(int total_count) {
        this.total_count = total_count;
        total_page = ((this.total_count - 1) / page_row) + 1;
        start_page = ((page - 1) / page_link) * page_link + 1;
        now_page = (start_page / page_link) + 1;
        end_page = start_page + (page_link - 1);
        start_idx = (page - 1) * page_row;
        virtual_idx = total_count - (page_row * (page - 1));

        log.info(StringUtils.join(new String[] { "{PageNavigator.setPageIndex}\r\n",
                "==========================================================================\r\n",
                "> total_count : ", ObjectUtils.toString(this.total_count), "\r\n", "> page_row : ",
                ObjectUtils.toString(page_row), "\r\n", "> page_link : ", ObjectUtils.toString(page_link), "\r\n",
                "> page : ", ObjectUtils.toString(page), "\r\n", "> total_page : ",
                ObjectUtils.toString(total_page), "\r\n", "> start_page : ", ObjectUtils.toString(start_page),
                "\r\n", "> now_page : ", ObjectUtils.toString(now_page), "\r\n", "> end_page : ",
                ObjectUtils.toString(end_page), "\r\n", "> start_idx : ", ObjectUtils.toString(start_idx), "\r\n",
                "> virtual_idx : ", ObjectUtils.toString(virtual_idx), "\r\n",
                "==========================================================================" }));
    }

    public int getPage() {
        return this.page;
    }

    public void setPage(int page) {
        this.page = page;
    }

    public int getPage_row() {
        return this.page_row;
    }

    public void setPage_row(int page_row) {
        this.page_row = page_row;
    }

    public int getPage_link() {
        return this.page_link;
    }

    public void setPage_link(int page_link) {
        this.page_link = page_link;
    }

    public int getTotal_count() {
        return this.total_count;
    }

    public int getTotal_page() {
        return this.total_page;
    }

    public int getStart_page() {
        return this.start_page;
    }

    public int getNow_page() {
        return this.now_page;
    }

    public int getEnd_page() {
        return this.end_page;
    }

    public int getStart_idx() {
        return this.start_idx;
    }

    public int getVirtual_idx() {
        return this.virtual_idx;
    }
}