resultset.java

Enjoy Web Dev With Tapestry 一书的源代码

package com.ttdev.phonebook;

import java.util.*;

public class ResultSet {
	private List entriesInResultSet;
	private int currentIdx;

	public ResultSet(List entriesInResultSet) {
		this.entriesInResultSet = entriesInResultSet;
		this.currentIdx = -1;
	}
	public boolean next() {
		if (currentIdx < entriesInResultSet.size() - 1) {
			currentIdx++;
			return true;
		} else {
			return false;
		}
	}
	public PhoneBookEntry readEntry() {
		PhoneBookEntry entry = (PhoneBookEntry) entriesInResultSet.get(currentIdx);
		System.out.println("Reading entry with id " + entry.getId());
		return entry;
	}
}