https://help.eclipse.org/latest/topic/org.eclipse.emf.compare.doc/help/developer/javadoc/org/eclipse/emf/compare/rcp/ui/structuremergeviewer/filters/AbstractDifferenceFilter.html
AbstractDifferenceFilter (EMF Compare API Specification)
declaration: package: org.eclipse.emf.compare.rcp.ui.structuremergeviewer.filters, class: AbstractDifferenceFilter
emfcompareapispecification