Object-Oriented Programming

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Object-Oriented Programming
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2. ??????? ???? ????? ?? ??????, ???????
??????? ???????? ?? ?????? ?????? ?????? ?????.
?????? ?????? ??? ????? ?????? ?????? ?????
???? ?????? ??????. ?? ????? ????? ??????? ???
???? ????? ??? ????? ?-60
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??????? ????? ??????? ????? ????? ??? ??????
???? ?? ???? ?? ???? ?????? ?? ?????? ????
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??? ????????...
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Procedural Programming
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Object-Oriented Programming
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????? ???? ????? ????? ?????

• ???? ?? ????? ???????? ???????
• ?? ????? ????? ?????? ?? ?? ????????\??????
  (??????) ??? ?? ?????\???????? ?????? (?????????)
  ?? ?????? ???.
• ????? ?????? ?????? ????? (??? ??? ??????) ??????.

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• ??????? OO
• ?????
• ?????
• ???????????
• ??????? ?? OO
• ??????? ???????? ?? ??????
• ????? ?? ???????
• ????? ?????? ????? ????
• ?????? ????? ???? (?????? ??????)
• ????? ????? ????? ??? ??? ?????

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?????? ????? ????? ?????

• ???\????\???????\object\instance
• ?????\class
• ?????\??????\attribute
• ?????
• ????????\????? ??????

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Object
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??? (object)

• ??? ??? ??? ??????? ???? ?????? ???????
  ???????? ??????.
• ???? ????? ?????, ??????, ?????
• ???? ?? ???????? ??????????
• ??? (state) ???? ???????? ???? ????
• ???? ?????? ????? ?????? ????? (??????
  ?????\????????? ??? ??? ???)
• ?????? ?????? ???? ??????? ???? ???? ???????

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?????????? ??????? ???

• ????? ?????
• ????? ??????
• ???? ?????? ???
• ???? ???? ??? ??????
• ??????? ???? ???????
• ?????? ???? ???????
• ????????? ???? ???????
• ??????? ?????? ????? ?????

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????? \ \ Information Hiding Encapsulation

• ????? ?????? ??? ?? ?????? ???????? ???? ?????
  ?????

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??????? ?????
????? ???????
?????? ????????
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????? (class)

• ???? ????? ????? ???
• ?????? ????? ????? ER

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Visibility
Symbol Access
public
- private
protected
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????? \Relationships

• Association
• Aggregation
• Composition
• Inheritance

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Association Binary associations
?????? ????? ??????-????? ????? ?''? ?? , ??,
????????? ??????? ????? (?????)
unidirectional association
bi-directional association
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??? "?????"aggregation/composition

• ??? ??? ??? ???? ????? ???? ?-"???" ???? ?????
  ?????? ????? ??? ?????

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??? "?????"

• ????? ??? ?????? ?? ??????? ???? ??????? ???
  ?????? ?????????

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?????
OVERRIDING
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????? ????? ??????. ??????

• ????? ?? ?? ??????? ???????, ???????, ????????
  ?????? ????? ????? ?????? ?????
• ????? ??????? ???????? ??????? ?????? ?? ?????
  ??''?
• ????? ??????? ??????? ?????
• ????? ?????? ????? ?????

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???? ?????? ?? ????????? UML
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???? ????? ?? ? ... ????? ??????? ????? ????? ???
!!!!
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Model Driven Development MDD
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?????
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????? ????? ?? ????? Web ?????

• ?????? ????? ???? ??????
• ?????? ????? ??????
• ????? ?????? ??????.
• ????? ??????? ????.
• ????? ?????? ?????.
• ????? ??????.
• ????? ????.
• ????? Use Case Diagram ???? ??????

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????? Package Diagram
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????? Component Diagram
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INTERNET
default.aspx
????? ????? ????? ???? ?????? Enterhttp//www.inv
entory.com/default.aspx
default.aspx.cs
??????? EntityBE ???? ???? ?? BLL ???
?-default.asx.cs . ???? ???? ?? ????? ???? aspx
?? ??????? ?????? ???????? ??????
EntityBE
????? ???? ???? ??????? ????? ????? ?? ?????.
EntityBLL
EntityDAL
DataProviderHelper
????? ????? ??????? ????? ?????? Enter
???? ???? ???? code behind default.aspx.cs
?????? ????? default.aspx????? ???? ???????
????? validation ???? UI
??? ???? ???????? ?????? ???????? ?? ????
???????. ???? ??????? ???? ?????? ??????? ??????
?? ??????? ?- DAL
?? ??? ???? ???? UI, ???????? ?????? ?? ???
Business Logic
DAL ???? ?- Business Entities ???? ??????
EntityBE ????? ???? ??????? ?????? ????? ???????
??? Java Script ???? ????? validation ????
presentation ?? ??? ???? ????, ????? ?? ????????
???? ?? ????
?????? EntityBLL ?????? ????? ?? ?????? ?????
. ?? ??? ???? ???? ???????? ?????? ?? DAL
DAL ???? ?? Web.Config ????? ???? ??????? ?????
???? ??????
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????? Package Diagram ?????
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????? Class Diagram