recordsdata.java

jGossip是一个简单而功能强大的Java论坛软件（消息板）

/*
 * $$Id: RecordsData.java,v 1.5 2004/05/08 23:24:18 bel70 Exp $$
 *
 * ***** BEGIN LICENSE BLOCK *****
 * The contents of this file are subject to the Mozilla Public License
 * Version 1.1 (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.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS"
 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
 * the License for the specific language governing rights and
 * limitations under the License.
 *
 * The Original Code is JGossip forum code.
 *
 * The Initial Developer of the Original Code is the JResearch, Org.
 * Portions created by the Initial Developer are Copyright (C) 2004
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *              Dmitry Belov <[e-mail]>
 *
 * ***** END LICENSE BLOCK ***** */
/*
 * Created on Jul 13, 2003
 *
 */
package org.jresearch.gossip.list;

import org.apache.commons.beanutils.PropertyUtils;

import org.jresearch.gossip.dao.drivers.DbDriver;

import java.lang.reflect.InvocationTargetException;

import java.sql.ResultSet;
import java.sql.SQLException;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Set;


/**
 * DOCUMENT ME!
 *
 * @author Bel
 */
public class RecordsData {
    private ArrayList records;
    private int recordsCount;
    private int currBlock;
    private int blockSize;

    /**
     * DOCUMENT ME!
     *
     * @return
     */
    public int getCurrBlock() {
        return currBlock;
    }

    /**
     * DOCUMENT ME!
     *
     * @return DOCUMENT ME!
     */
    public int getCurrentPage() {
        return Math.round(currBlock / blockSize) + 1;
    }

    /**
     * DOCUMENT ME!
     *
     * @return DOCUMENT ME!
     */
    public boolean isLastBlock() {
        return ((recordsCount - currBlock) <= blockSize);
    }

    /**
     * DOCUMENT ME!
     *
     * @return DOCUMENT ME!
     */
    public boolean isHaveSplit() {
        return (recordsCount > blockSize);
    }

    /**
     * DOCUMENT ME!
     *
     * @return
     */
    public ArrayList getRecords() {
        return records;
    }

    /**
     * DOCUMENT ME!
     *
     * @return
     */
    public int getRecordsCount() {
        return recordsCount;
    }

    /**
     * DOCUMENT ME!
     *
     * @param i
     */
    public void setCurrBlock(int i) {
        currBlock = i;
    }

    /**
     * DOCUMENT ME!
     *
     * @param i
     */
    public void setRecordsCount(int i) {
        recordsCount = i;
    }

    /**
     * DOCUMENT ME!
     *
     * @param rs DOCUMENT ME!
     * @param mapping DOCUMENT ME!
     * @param klass DOCUMENT ME!
     *
     * @throws InstantiationException DOCUMENT ME!
     * @throws IllegalAccessException DOCUMENT ME!
     * @throws InvocationTargetException DOCUMENT ME!
     * @throws NoSuchMethodException DOCUMENT ME!
     * @throws SQLException DOCUMENT ME!
     */
    public void fillRecords(ResultSet rs, HashMap mapping, java.lang.Class klass)
        throws InstantiationException, IllegalAccessException, 
            InvocationTargetException, NoSuchMethodException, SQLException {
        Set keys = mapping.keySet();
        this.records = new ArrayList();

        DbDriver dvDriver = DbDriver.getInstance();

        while (rs.next()) {
            Object item = klass.newInstance();
            Iterator it = keys.iterator();

            while (it.hasNext()) {
                String key = (String) it.next();
                PropertyUtils.setProperty(item, key,
                    dvDriver.mapObjectType(rs.getObject(
                            (String) mapping.get(key))));
            }

            this.records.add(item);
        }
    }

    /**
     * DOCUMENT ME!
     *
     * @return
     */
    public int getBlockSize() {
        return blockSize;
    }

    /**
     * DOCUMENT ME!
     *
     * @param i
     */
    public void setBlockSize(int i) {
        blockSize = i;
    }
}