Your assignment for this Afternoon is:

        Step #2 in Thinking in OO (AnalysisAndDesign.txt)

         2) break the appl into "parts" (How many classes do we create?)
             which parts handle the Business Rules?
             which parts handle the SQL?
             which part talk to the User?


         we are going to do a "Sample" appl together

         On the Web site is BookSchema.txt
         which has 3 DB Tables

         we are going to "design" the parts for this appl

         I need a Web Appl to Loan Books to Library Users

         Here are the requirements
         Each User must have a account at the Library
         Each User can borrow at most 3 books at a time
         If a User has an Overdue book, they cannot borrow another one

         I need a web page "Sign On"
                           search for a Book
                           check-out a Book
                           check-in a book

         ---------------------------------------------------------
         How do I break this appl into "parts"?

         Task I - Talk to the User
             I will need code (classes) to do:
               here is where I list all the web pages for the appl
                 signon page
                 signoff page
                 search for book by title page
                 search for book by author page (I get back a list of books for the User to pick from)
                 etc.

         Task II - Host the Business Logic
            I will need code (classes) to do:
              here is where I list all the Entity classes (sets of data)
              User Entity (set of data fields)
              Book Entity
              Loan Entity

         Task III - Access services (external software)
            I need code (classes) to read/write files/DBs/etc
              here is where I list all the Action interfaces/classes (work routines)
              UserDAO (Data Access Object, where I put the SQL)
              BookDAO
              LoanDAO


         I will also have Utility code (shared routines)
            for example custom error handlers, or logger
            ????


        -----------------------------------------------------------

        Action Classes
          I think I need 3 DB Action classes (Data Access Objects - DAO)
          1) Handle all the SQL for Users
               here I list the routines
                 for example:
                    findUserByName
                    findUserById
                    findAllUsers
                    etc.
          2) Handle all the SQL for Books
               findByTitle
               findByISBN
               findByAuthor
               findOverDueBooksByUser
          3) Handle all the SQL for Loans
               checkOutBook
               checkInBook

        Entity Classes
          I think I have 3 sets of data
          1) User
              here is where I list the fields and the rules
                 USERID  NUMBER(10) NOT NULL,
                 the userId must greater than zero and less than 10,000,000,000
                   min = 1
                   max 9999999999
                   initial value = 1
                 ADDRESS VARCHAR2(40) NOT NULL,
                 the address must not be null, or empty (all spaces)
                  min = 1 char
                  max = 40 char
                  initial value = "Unknown"
                 ADDRESS_ZIP      VARCHAR2(10) NOT NULL,
                  the zip must not be null, or empty (all spaces)
                  min = 00001
                  max = 99999-9999
                  pattern 99999-9999    pattern 99999-9999 
                          ^^^^^ required             ^^^^^ optional
                  initial value = 00001
          2) Book
          3) Loan


         Web pages
           I think I need a Web page for:
             login/logout
             find Book by title
             check out Book (new Loan record)
             list my current checked out Books?



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        You Assignment starts here:

        Is to go thru the ProjectOverview and list:

        For Customer Appl
          all the Action classes (DB access or File accces)
          all the Entity classes (DB records, set of data being passed aound the system, etc)
             list:
                the class name
                for each field in the class list:
                  the field name
                  the data type
                  the initial value
                  the business rules:
                    min
                    max
                    required?
                    any other constraint?
          a start of all the Web Pages (list them by name)


        For the World Appl
          all the Action classes
          all the Entity classes
          a start of all REST API calls (list them by name)