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Object-Oriented Design with UML and Java // —– Attributes ——— private final int theCatalogueNumber; // —– Relations ——— private BorrowerRecordImp theBorrower; } // class: LoanItemImp Notice how we have imposed the requirement that all loan items must have a catalogue number represented […]

Chapter 6: Case Study: The Library Application Revisited giving: package loansubsystem; public interface BorrowerRecordIF { // —– Operations ———public abstract void attachLoanItem(LoanItemIF aLoanItem); public abstract void detachLoanItem(LoanItemIF aLoanItem); public abstract Iterator getLoanItemsIterator(); public abstract String getName(); public abstract String toString(); } // […]

Object-Oriented Design with UML and Java provide a means of displaying its borrowers and loan items provide a textual representation for display purposes and provide status information Translating this into Java we have: package loansubsystem; public interface LenderIF { […]

Chapter 6: Case Study: The Library Application Revisited Although it may appear rather complex at first sight, it is in fact quite straightforward. Essentially it consists of three layers. The top layer has the interfaces that specify the minimum behaviour that any lender, loan item or borrower record must have. […]

Chapter 6: Case Study: The Library Application Revisited interface LoanItemIF abstract LoanItemImp abstract LenderImp interface LenderIF -theLoanStock {java.util.Collection} 0..* Figure 6.7 An initial architectural framework interface LenderIF […]

Object-Oriented Design with UML and Java particular the design should be able to accommodate new requirements without the necessity for substantial changes. We must avoid having to redesign the system or recode large parts of it each time we conduct an iteration. Therefore the challenge is to develop a […]

Chapter 6: Case Study: The Library Application Revisited action.registerOneBorrower(); } // // One selection and the corresponding actions for each use-case // … } else { action.unknownSelection(); } } while(choice.equals( 0 ) == false); } // method: […]

Object-Oriented Design with UML and Java real difference is that its methods recognize that Publications are borrowed and returned to the Library. A typical method is: // class Action public void addOneBook() { // Get book details from the user. ConsoleIO.out.print( t […]

Chapter 6: Case Study: The Library Application Revisited theAuthor = anAuthor; } // method: Book public Book() { this( , 0, ); } // method: Book public String toString() { return super.toString() + by + theAuthor; […]

Object-Oriented Design with UML and Java theTitle = aTitle; theCatalogueNumber = aCatalogueNumber; theBorrower = null; } // method: Publication protected Publication() { this( ,0); } // method: Publication public int getCatalogueNumber() { return theCatalogueNumber; } // […]