请允许我说,我有一个执行<代码>ArrayAccess的类别,但不允许增加新的数据。 你可以确定已经存在的价值观,但你可以增加规模。
$arrayAccessible[1] = new StdClass(); //okay
$arrayAccessible[] = new StdClass(); //should throw an exception
What exception type should I throw? I do have SPL exception types available and should use them if it makes sense. The best I can think of is perhaps BadFunctionCallException or BadMethodCallException.
如果说不错的话,也许我会打上<条码>,不支持行动,。 然而,这肯定不是我喜欢做的事。 在这个项目中,很难增加这一点。
Honestly, I would throw an OverflowException. Since the array is fixed, it is by definition full as well...
I d say UnsupportedOperationException is good enough - it describes the problem that occurred well and fellow developer should be able to figure out what happened easily. If you aren t sure or want to be more specific, create your own exception.
Also, I wouldn t probably use ArrayAccess (unless you are working with legacy code) if I wanted to have fields read only. Getters should do the trick. If you want to iterate over object s properties, implement also Iterator interface.
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