Assert.isNotNull(acceptedTypes); fAcceptedTypes= acceptedTypes; fAllowMultipleSelection= allowMultipleSelection;
this(acceptedTypes, allowMultipleSelection, null);
	public TypedElementSelectionValidator(Class[] acceptedTypes, boolean allowMultipleSelection) {		Assert.isNotNull(acceptedTypes);		fAcceptedTypes= acceptedTypes;		fAllowMultipleSelection= allowMultipleSelection;	}