Bug 126839 [DataBinding] IObservable refactoring
bundles/org.eclipse.jface.databinding/src/org/eclipse/jface/internal/databinding/swt/CComboUpdatableCollection.java
private final CCombo ccombo;
	private final String attribute;
	private boolean updating = false;
	/**
	 * @param ccombo
	 * @param attribute
	 */
	public CComboUpdatableCollection(CCombo ccombo, String attribute) {
		this.ccombo = ccombo;
		
		
		if (attribute.equals(ViewersProperties.CONTENT)) {
			this.attribute = SWTProperties.ITEMS;
		} else {
			this.attribute = attribute;
		}
		
		if (this.attribute.equals(SWTProperties.ITEMS)) {
			ccombo.addModifyListener(new ModifyListener() {
				public void modifyText(ModifyEvent e) {
					if (!updating) {
						fireChangeEvent(ChangeEvent.CHANGE, null, null);
					}