Transformation Preview

EMF Compare is used to preview a transformation's effect on a given model. As shown in Figure 4.4, “Wizard Preview” , a transformed copy is compared to the original model. To inspect the changes of the parameter values, the preview window provides a second page, that lists the parameters of the applied unit together with their initial values and their values after the transformation was applied. Figure 4.5, “Wizard Parameter Preview” shows a changed parameter value that is used to externalize an object that was matched by a node named "package". Note that here the type of the parameters has to be Ignore . This guarantees that the parameter does not affect the match-finding. The parameter will hold a reference to the object matched by the "package"-node.

Figure 4.4. Wizard Preview

Wizard Preview


Figure 4.5. Wizard Parameter Preview

Wizard Parameter Preview