private String getStatusMessage() {
		if (dialogModel.isEmpty()) {
			return "Please add a filter condition!";
		}
		if (!dialogModel.isValid()) {
			return "One or more filter values are invalid!";
		}
		return "";
	}
Ask the user if they want to continue or lose their filter changes.

@return true to close the dialog and lose the changes, false to abort the close.
Ghidra/Framework/Docking/src/main/java/docking/widgets/table/constraint/dialog/ColumnFilterDialog.java