PPT11_Design_Patterns - Design Patterns using Java What are...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Design Patterns using Java What are Patterns? Patterns are snippets of reusable design. Design solutions to software development problems. Used to help insure reusability of code Categories of Patterns Creational Patterns Deal with the process of object creation. Structural Patterns Deal with the static composition and structure of classes and objects Behavioral Patterns Deal with dynamic interaction among classes and objects. Common Patterns Decorator Pattern Singleton Pattern Template Method Pattern Abstract Factory Pattern Observer Pattern Decorator Pattern Category Structural Intent To add dynamic functionality to an existing object. Has same interface but has additional or altered behaviors. Flexible alternative to inheritance Using inheritance is a static solution Implementation Create a Decorator object that encloses an existing object. It has the same interface as the enclosed object. The decorator object is used by the application.
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.
  • Spring '10
  • DwightStrong
  • Design pattern, Template method pattern, Abstract Factory Pattern, Pattern Category Creational, Category Creational Intent, Pattern Decorator Pattern

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern