private boolean isValidPatternString(String searchText) {
			StringColumnConstraint stringConstraint = (StringColumnConstraint) currentConstraint;
			return stringConstraint.isValidPatternString(searchText);
		}
String-based data model for the DropDownSelectionTextField. Values from the column,
converted to String, are stored and queried here.
Ghidra/Framework/Docking/src/main/java/docking/widgets/table/constrainteditor/AutocompletingStringConstraintEditor.java