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Sample Programs from NeXSTEP 3.3

// Department.m
//
// Created on Wed Feb 15 09:50:50 GMT-0800 1995 by NeXT EOModeler.app Version 77

#import "Department.h"
#import "Employee.h"

@implementation Department

- (Employee *)lowestPaidEmployee
    // return the lowest paid employee.  We might want to do this via a query too
{
    // the server rather than by traversing the objects here...
    NSEnumerator *emps = [toEmployees objectEnumerator];
    Employee *emp, *lowestEmp = nil;
    while (emp = [emps nextObject]) {
        if (!lowestEmp || ([emp salary] < [lowestEmp salary]))
            lowestEmp = emp;
    }
    return lowestEmp;
}

- (NSString *)validateEmployee:(Employee *)emp
{
    // Lets say no employee can make more than 10 times the lowest paid
    // employee in his or her department
    Employee *lowest = [self lowestPaidEmployee];
    double limit = [lowest salary] * 10.0;
    
    if ([emp salary] > limit)
        return [NSString stringWithFormat:@"Salary exceeds departmental limit of %.2f", limit];
    return nil;
}

- (void)dealloc
{
    [departmentName autorelease];
    [toEmployees autorelease];
    [super dealloc];
}

@end

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