package org.opendaylight.controller.md.sal.dom.store.impl.tree;
import com.google.common.base.Preconditions;
-import org.opendaylight.controller.md.sal.dom.spi.RegistrationTreeSnapshot;
import org.opendaylight.controller.md.sal.dom.store.impl.DataChangeListenerRegistration;
+import org.opendaylight.mdsal.dom.spi.RegistrationTreeSnapshot;
/**
* A walking context, pretty much equivalent to an iterator, but it