private Component buildFilterContentPanel() {
		editor = createEditor(filterType, null);
		contentPanel = new JPanel(new BorderLayout());
		contentPanel.setBorder(BorderFactory.createEmptyBorder(0, 10, 0, 10));
		JComponent editorComponent = editor.getComponent();
		editorComponent.getAccessibleContext().setAccessibleName("Filter Value");
		contentPanel.add(editorComponent);
		return contentPanel;
	}
Returns all values in the filter as a list. For filters that do not allow
multiple entries, this will always return a list of only one item.

@return filter values
Ghidra/Features/BSim/src/main/java/ghidra/features/bsim/gui/search/dialog/FilterWidget.java