org.openlmis.core.domain.Pagination.java Source code

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Here is the source code for org.openlmis.core.domain.Pagination.java

Source

/*
 * This program is part of the OpenLMIS logistics management information system platform software.
 * Copyright  2013 VillageReach
 *
 * This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
 * 
 * This program 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 Affero General Public License for more details.
 * You should have received a copy of the GNU Affero General Public License along with this program. If not, see http://www.gnu.org/licenses. For additional information contact info@OpenLMIS.org.
 */

package org.openlmis.core.domain;

import lombok.EqualsAndHashCode;
import lombok.Getter;
import lombok.NoArgsConstructor;
import lombok.Setter;
import org.apache.ibatis.session.RowBounds;

/**
 * Pagination represents an entity that keeps track of the current page number of any record, size of a page,
 * number of pages and total records.
 */
@NoArgsConstructor
@EqualsAndHashCode(callSuper = false)
public class Pagination extends RowBounds {

    @Getter
    @Setter
    private int page;

    @Getter
    private int numberOfPages;

    @Getter
    private int totalRecords;

    public Pagination(Integer page, int limit) {
        super((page - 1) * limit, limit);
        this.page = page;
    }

    public void setTotalRecords(Integer totalRecords) {
        this.totalRecords = totalRecords;
        setNumberOfPages();
    }

    private void setNumberOfPages() {
        if (getLimit() > 0) {
            if (totalRecords % getLimit() == 0) {
                numberOfPages = totalRecords / getLimit();
            } else {
                numberOfPages = (totalRecords / getLimit()) + 1;
            }
        }
        if (numberOfPages == 0) {
            numberOfPages++;
        }
    }
}