@Override
	public void setComment(String comment) {
		if (record != null) {
			if (StringUtils.isBlank(comment)) {
				comment = null;
			}
			record.setString(ComponentDBAdapter.COMPONENT_COMMENT_COL, comment);
			updateRecord(true);
		}
	}
Get record key
@return record key or -1 for undefined component without a record
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/data/DataTypeComponentDB.java