private void initializeIfNeeded() {
		if (nameMap != null) {
			return;
		}
		try {
			initialize();
		}
		catch (IOException e) {
			dataMgr.dbError(e);
		}
	}
Database implementation for the enumerated data type.
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/data/EnumDB.java