These APIs have changed for M6 (the API are now in their final 2.1.0 stage as far as removals are concerned). A good source of "how to use the APIs" are the unit tests of EMF Compare if you have the code in your workspace.
For your particular use case, the code would look as such:
IMatchEngine.Factory factory = new MatchEngineFactoryImpl(UseIdentifiers.NEVER);
IMatchEngine.Factory.Registry matchEngineRegistry = new MatchEngineFactoryRegistryImpl();
matchEngineRegistry .add(factory);
EMFCompare comparator = EMFCompare.builder().setMatchEngineFactoryRegistry(matchEngineRegistry).build();
Note that using the default registry (EMFCompare.builder().build();
) would be enough in most cases... except when you really can't let EMF Compare use the IDs :p.
[edit: a small note: we have now updated the wiki with accurate information, thanks for the feedback ;)]