private ColumnConstraintEditor<T> buildDummyEditor() {
		Msg.error(this, "No editor for constraint '" + constraintName + "' -- building dummy");
		String message;
		if (StringUtils.isBlank(constraintName)) {
			message = "Constraint provides no editor";
		}
		else {
			message = "Constraint '" + constraintName + "' provides no editor";
		}

		return new DummyConstraintEditor<>(message);
	}
Sets the constraint value from a string.  Used for testing.

@param valueString the constraint value as a string that will be parsed.
@param dataSource the table's DataSource object.
Ghidra/Framework/Docking/src/main/java/docking/widgets/table/constraint/dialog/DialogFilterCondition.java