PCES PI Meeting DAJ: Facilitating AspectJ to Express Traversal-Related Concerns

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PCES PI MeetingDAJ Facilitating AspectJ to
ExpressTraversal-Related Concerns
Karl Lieberherr John Sung Doug Orleans Mitch
Wand Northeastern University
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Presentation Outline

• Project Products
• We have developed a tool called DAJ (Demeter
  AspectJ) that adds traversals to AspectJ.
• DAJ
• Input AspectJ program, extended with files
  containing traversal specifications.
• Output Compiled AspectJ program where the
  traversals have been added using introductions.
• Research Context Diagram
• DAJ depends on the availability of AspectJ. We
  use AspectJ to extend AspectJ but without
  modifying the AspectJ compiler !!! This is
  possible thanks to AspectJ.

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Presentation Outline (cont)

• OEP Architecture Requirements
• A project that uses Java and uses a complex UML
  class diagram in which you program many object
  collaborations that encode traversal-related
  concerns.
• Required OEP Project Products
• We need embedded system source code that uses
  object collaborations that encode
  traversal-related concerns.

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DAJ Products Context Diagram
Java or AspectJ Application
AspectJ traversal specifications
DAJ
DJ and DemeterJ and AspectJ
Legend
Input File
DAJ Project Tool
AspectJ source Code for traversals
AspectJ
Generated File
OEP Demonstrations