src/main/java/com/googlecode/objectify/impl/QueryImpl.java
QueryResults<Key<T>> keysIterator() {
		final QueryEngine queryEngine = loader.createQueryEngine();
		final KeyQuery query = this.actual.newKeyQuery();
		return queryEngine.queryKeysOnly(query);
	}
QueryResults<Key<T>> keysIterator() {
		final QueryEngine queryEngine = loader.createQueryEngine();
		final KeyQuery query = this.actual.newKeyQuery();
		return queryEngine.queryKeysOnly(query);
	}
QueryResults < Key < T > > keysIterator ( ) { final QueryEngine queryEngine = loader . createQueryEngine ( ) ; final KeyQuery query = this . actual . newKeyQuery ( ) ; return queryEngine . queryKeysOnly ( query ) ; }
Get an iterator over the keys.  Not part of the public api, but used by QueryKeysImpl.  Assumes
that setKeysOnly() has already been set.
Get an iterator over the keys . Not part of the public api but used by QueryKeysImpl . Assumes that setKeysOnly () has already been set .