@Override
		public Status getStatus() {
			if (bds.isClosed()) {
				return Status.Unconnected;
			}
			if (successfulConnection) {
				return Status.Ready;
			}
			return Status.Error;
		}
Determine if the stored DB file exists.
@return true if the stored DB file exists
Ghidra/Features/BSim/src/main/java/ghidra/features/bsim/query/file/BSimH2FileDBConnectionManager.java