studentgradetrans.java

来自「国外的数据结构与算法分析用书」· Java 代码 · 共 23 行

package Transactions;

import Sets.StudentSet;
import dslib.list.LinkedListUos;
import Entities.*;

/**	Get the grade history of a student */
public class StudentGradeTrans
{

	public LinkedListUos gradeList;

	public void execute(int studNum)
	{
		StudentSet.rep.search(new Integer(studNum));
		if (StudentSet.rep.itemExists())
			gradeList = ((Student)StudentSet.rep.item()).gradeList;
		else
			gradeList = new LinkedListUos();
	}

} /* end of StudentGradeTrans */