www.pudn.com > Java_UML_library.rar > Loan.java

// 
//  Unified Library Application 
//  Case study in Unified Modeling Language Toolkit 
// 
//  Loan.java: represents a loan. The loan refer to one 
//  title and one borrower. 
// 
//  Copyright (c) 1998 John Wiley & Sons, Inc. All rights reserved. 
//  Reproduction or translations of this work beyond that permitted 
//  in Section 117 of the 1976 United States Copyright Act without 
//  the express written permission of the copyright owner is unlawful. 
//  Requests for further information should be addressed to Permissions 
//  Department, John Wiley & Sons, Inc. The purchaser may make back-up 
//  copies for his/her own use only and not for distribution or resale. 
//  The Publisher assumes no responsibility for errors, omissions, or 
//  damages, caused by the use of these programs of from the use of the 
//  information contained herein. 
 
package bo; 
import util.ObjId; 
import db.*; 
import java.io.*; 
import java.util.*; 
 
public class Loan extends Persistent 
{ 
    private ObjId item; 
    private ObjId borrower; 
    public Loan() 
    { 
    } 
    public Loan(ObjId it, ObjId b) 
    { 
        item = it; 
        borrower = b; 
    } 
    public BorrowerInformation getBorrower() 
    { 
        BorrowerInformation ret = 
            (BorrowerInformation) Persistent.getObject(borrower); 
        return ret; 
    } 
    public String getTitleName() 
    { 
        Item it = (Item) Persistent.getObject(item); 
        return it.getTitleName(); 
    } 
    public Item getItem() 
    { 
        Item it = 
            (Item) Persistent.getObject(item); 
        return it; 
    } 
    public int getItemId() 
    { 
        Item it = (Item) Persistent.getObject(item); 
        return it.getId(); 
    } 
    public void write(RandomAccessFile out) 
        throws IOException 
    { 
        item.write(out); 
        borrower.write(out); 
 
    } 
    public void read(RandomAccessFile in) 
        throws IOException 
    { 
        item = new ObjId(); 
        item.read(in); 
        borrower = new ObjId(); 
        borrower.read(in); 
    } 
}