recordgradetrans.java

国外的数据结构与算法分析用书

package Transactions;

import Sets.*;
import Entities.*;

/**	Change one student's grade for a course section */
public class RecordGradeTrans
{

	public void execute(int studNum, CallNum callN, String mark)
	{
		Student student = null;
		//CourseSection sec = DepartmentSet.getCourseSection(callN);
		Course course = DepartmentSet.getCourse(callN.deptNum(), callN.courseNum());
		if (course != null)
		{
			int credits = course.creditUnits();
			GradeRecord newRecord =
			new GradeRecord(callN, mark, Clock.getYear(), Clock.getTerm(), credits);
			StudentSet.rep.search(new Integer(studNum));
			if (StudentSet.rep.itemExists())
			{
				student = (Student)StudentSet.rep.item();
				student.recordGrade(newRecord);
			}
		}
	}
		
} /* end of RecordGradeTrans */