producttablemodel.java

电话号码查询系统 要求有电话录入

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import javax.swing.table.AbstractTableModel;

public class ProductTableModel extends AbstractTableModel {

	/**
	 * changeList用来存放被修改过的数据值,这样做是为了一次修改多行多值, 保存的对象是ChangedProduct,只记录被修改过的值.
	 */
	private static List changeList = new ArrayList();
	private List list = new ArrayList();
	private String[] column = { "ID", "Name",
			"Tell", "Address" };

	public ProductTableModel() {
	}

	public ProductTableModel(List list) {
		this();
		setList(list);
	}

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

	public int getRowCount() {
		return list.size();
	}

	/**
	 * getValueAt方法就是使得数据在Table显示出来,给每个单元格设值
	 */
	public Object getValueAt(int arg0, int arg1) {
		ProductBean p = (ProductBean) list.get(arg0);
		return getPropertyValueByCol(p, arg1);
	}

	public void addRow(int index, ProductBean p) {
		if (index < 0 || index > list.size() - 1) {
			list.add(p);
			fireTableRowsInserted(list.size(), list.size());
		} else {
			list.add(index + 1, p);
			fireTableRowsInserted(index, index);
		}
	}

	public boolean deleteRow(int index) {
		if (index >= 0 && index < list.size()) {
			list.remove(index);
			fireTableRowsDeleted(index, index);
			return true;
		} else
			return false;
	}

	public boolean saveRow(int index, ProductBean p) {
		if (index >= 0 && index < list.size()) {
			list.set(index, p);
			fireTableRowsUpdated(index, index);
			return true;
		} else
			return false;
	}

	public ProductBean getRow(int index) {
		if (index >= 0 && index < list.size()) {
			return (ProductBean) list.get(index);

		} else
			return null;
	}

	public List getNewRow() {
		List list = new ArrayList();
		List listProduct = getList();
		Iterator it = listProduct.iterator();
		while (it.hasNext()) {
			ProductBean p = new ProductBean();
			p = (ProductBean) it.next();
			if (p.getId() == 0) {
				list.add(p);
			}
		}
		return list;
	}

	public List getList() {
		return list;
	}

	public void setList(List list) {
		this.list = list;
		fireTableDataChanged();
	}

	public String getColumnName(int i) {
		return column[i];
	}

	public void setColumn(String[] column) {
		this.column = column;
	}

	public Object getPropertyValueByCol(ProductBean p, int col) {
		switch (col) {
		case 0:
			return p.getId();
		case 1:
			return p.getName();
		case 2:
			return p.getTell();
		case 3:
			return p.getAddress();
		}
		return null;
	}

	public void setPropertyValueByCol(ProductBean p, String value, int col) {
		switch (col) {
		case 1:
			p.setName(value);
			break;
		case 2:
			p.setTell(value);
			break;
		case 3:
			p.setAddress(value);
			break;
		}
		fireTableDataChanged();
	}

	public boolean isCellEditable(int row, int column) {
		return true;
	}

	/**
	 * setValueAt方法是使增加或修改值的时候生效,aValue就是你在单元格填的值, 要把这些值保存到数据源中
	 */
	public void setValueAt(Object aValue, int rowIndex, int columnIndex) {
		ProductBean p = (ProductBean) list.get(rowIndex);
		setPropertyValueByCol(p, aValue.toString(), columnIndex);
		this.fireTableCellUpdated(rowIndex, columnIndex);
	}

	public static List getChangeList() {
		return changeList;
	}

	public static void setChangeList(List changeList) {
		ProductTableModel.changeList = changeList;
	}

}