phonebook.java

Enjoy Web Dev With Tapestry 一书的源代码

package com.ttdev.phonebook;

import java.util.*;

public class PhoneBook {
	private PhoneBookTable table;

	public PhoneBook(PhoneBookTable table) {
		this.table = table;
	}
	public List getEntries() {
		List result = new ArrayList();
		ResultSet rs = table.selectAll();
		while (rs.next()) {
			result.add(rs.readEntry());
		}
		return result;
	}
	public int getNoEntries() {
		return table.selectCount();
	}
	public List getSomeEntries(
			int startIdx,
			int noEntries,
			String sortColumnId,
			boolean isAscending) {
		ResultSet rs = table.selectLimit(startIdx,	noEntries, sortColumnId, isAscending);
		List result = new ArrayList();
		while (rs.next()) {
			result.add(rs.readEntry());
		}
		return result;
	}
	public void deleteEntry(int id) {
		table.delete(id);		
	}
}