public ColumnConstraint<?>[] getColumnConstraints() {
		return parent.getColumnFilterData().getConstraints();
	}
Returns a list of valid constraints for the column

<P>Used by the dialog to populate the constraint comboBox

@return a list of valid constraints for the column.
Ghidra/Framework/Docking/src/main/java/docking/widgets/table/constraint/dialog/DialogFilterCondition.java