remindtable.java

用JAVA开发的提醒精灵

package com.liming.remind.ui;


import java.util.List;

import javax.swing.JTable;
import javax.swing.ListSelectionModel;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.TableColumn;

import com.liming.remind.dao.RemindDAO;
import com.liming.remind.dto.Remind;


/**
 * Function : Remind Table to show Reminds
 * 
 * @author Liming
 * @time Dec 18, 2008 8:16:42 PM
 * @version 1.0
 */
public class RemindTable extends JTable {

    /**
     * Field : serialVersionUID
     */
    private static final long serialVersionUID = 6491299848652715676L;

    // Reminds List
    private List<Remind> remindsList;

    // The table header
    private String tableColumns[] = new String[]{ "ID", "RemindTime",
            "RemindContent" };

    // Table model
    private MyModel model;

    /**
     * @param remindDAO
     * @throws MyNullPointerException
     */
    public RemindTable(RemindDAO remindDAO) {
        // Get Reminds List
        remindsList = remindDAO.getRemindsList();

        // Get the instance of MyModel
        model = new MyModel();
        // And Set To Table
        setModel(model);

        // Set table header
        TableColumn column = getColumn(tableColumns[0]);
        column.setPreferredWidth(20);

        // Set selection mode to SINGLE_SELECTION
        setSelectionMode(ListSelectionModel.SINGLE_SELECTION);

        // Set row height
        setRowHeight(25);
    }

    /**
     * Function : Get MyTable's Model
     */
    public MyModel getModel() {
        return model;
    }

    /**
     * Function : Get selected Remind
     * 
     * @return
     */
    public Remind getSelectedRemind() {
        int row = this.getSelectedRow();
        if (row < 0 || row >= remindsList.size()) {
            return null;
        }
        return remindsList.get(row);
    }

    /**
     * Function : Public class to operate Table Model
     * 
     * @author Liming
     * @time Dec 18, 2008 8:36:51 PM
     * @version 1.0
     */
    public class MyModel extends AbstractTableModel {

        /**
         * Field : serialVersionUID
         */
        private static final long serialVersionUID = 122780433843109586L;

        public int getColumnCount() {
            return tableColumns.length;
        }

        public int getRowCount() {
            int remindsListSize = remindsList.size();
            if (remindsListSize < 3) {
                return 3;
            }
            return remindsList.size();
        }

        public Object getValueAt(int rowIndex, int columnIndex) {
            Remind remind = null;
            try {
                remind = remindsList.get(rowIndex);
            } catch (IndexOutOfBoundsException e) {
                // There is needed to catch the exception
                // e.printStackTrace();
            }
            if (remind == null) {
                return null;
            }
            switch (columnIndex) {
            case 0:
                return remind.getId();
            case 1:
                return remind.getTime();
            case 2:
                return remind.getTips();
            }
            return null;
        }

        public String getColumnName(int columnIndex) {
            return tableColumns[columnIndex];
        }
    }
}