Aspect Interference and Composition in the Motorola Aspect-Oriented Modeling Weaver

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Aspect Interference and Composition in the
Motorola Aspect-Oriented Modeling Weaver

• Jing Zhang
• Thomas Cottenier
• Aswin van den Berg
• Jeff Gray

University of Alabama at Birmingham
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Motorola WEAVR A Profile for modeling Aspects
in UML 2.0
Pointcut Composition
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Motorola WEAVR
Aspect deployment entities
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Motorola WEAVR An Agent for visualizing
Joinpoints and Analyze Joinpoint Effects
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Motorola WEAVR
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package1 lt- Aspect1,Aspect2,Aspect3,Aspect4 ALL
package1 lt- Aspect3,Aspect4
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• Aspect3 is hidden by Aspect2
• Aspect3 will be inactivated when both Aspect2
  and Aspect3 match at the same join point Aspect2
  gt Aspect3
• Aspect4 is dependent on Aspect3
• the presence of Aspect4 implies that Aspect3 has
  to be present at the same join point as well
  Aspect4 gt Aspect3

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Aspect Interference and Composition in WEAVR
Conclusions

• Contribution approach that allows precedence
  relationships to be specified at the modeling
  level to prevent undesirable interferences
  between aspects
• Also
• - Composition of Transition Pointcuts maintains
  properties
• - Transition Pointcut Designators make sense