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Eclipse vs Visual Works
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- 2. WHAT ARE THEKEY REFACTORING CAPABILITIES Eclipse • Extract Class • Extract Interface • Extract Superclass • Extract Method • Push Down • Extract Local Variable • Extract Local Variable • Change Method Signature Visual works • Add Class • Add Method • Add Instance Variable • Remove Class • Remove Method • Remove Instance Variable • Rename Class • Rename Method • Move Method • Rename Instance Variable • Pull Up Instance Variable • Push Down Instance Variable • Abstract Instance Variables • Move Instance Variable
- 3. WHAT SOFTWARE ARTIFACTSARE AFFECTED BY INDIVIDUAL REFACTORING OPERATIONS? Eclipse • The only artifact that the JDT modifies, is the system source code • JDT has coarse (package manipulation), medium (class manipulation) and fine (method and variable manipulations) granularity Visual works • The only artifact that Visual Works modifies, is the system source code • VisualWorks has medium (class refactorings) to fine (method and variable refactorings) granularity.
- 4. WHAT CAPABILITIES ARE MISSING? Eclipse •The tool has no knowledge about the state of the system, after the user manually modifies the project source code. • The JDT does not include metrics of any kind. This should not be considered as a serious draw back since, by using the Eclipse plug-in capabilities, the JDT can be extended so as to include these functionalities. Visual works • The browser does not provide facilities for managing different versions. • VisualWorks does not include metrics of any kind • To obtain any information about the quality or modularity of the code produced by refactoring a system, it is necessary to use some tool that has this capability
- 5. HOW CAN THETOOL BE EXTENDED? Eclipse • At the Eclipse Platform level, it should be possible to add plug-ins with more general metrics, that include different types of projects, for example UML projects that interact with code projects. Visual works • By providing a GUI that permits refactoring definition so that user can use the framework without extensive knowledge about the theory on which refactorings are based.
- 6. WHAT KIND OFVIEWS DOES THE TOOL SUPPORT? Eclipse • Static. • Eclipse tool provides incremental project build support, and this is used by the JDT Java compiler to incrementally build Java projects. Visual works • Dynamic. • VisualWorks is a Smalltalk environment, and these environments use dynamic compilation.
- 7. IS THE TOOLEND-USER PROGRAMMABLE? Eclipse • YES Visual works • YES
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