@Override
        @NonNull
        protected String getResultMessage() {
            final int size = getCaches().size();
            return getContext().getResources().getQuantityString(R.plurals.command_delete_caches_result, size, size);
        }
Extract a cache from adapter data.

@param adapterInfo an adapterInfo
@return the pointed cache
main/src/main/java/cgeo/geocaching/CacheListActivity.java