ListCombinationBinding.java 文件源码

private void sourceChanged(
        Change<? extends ObservableValue<? extends T>> ch) {
    while(ch.next()) {
        ch.getRemoved().forEach(elem -> elem.removeListener(weakElemListener));
        ch.getAddedSubList().forEach(elem -> elem.addListener(weakElemListener));
        invalidate();
    }
}