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From Emmanuel Lecharny <elecha...@gmail.com>
Subject Re: Constructors & Exceptions
Date Thu, 03 Jan 2008 12:46:52 GMT
Felix Knecht wrote:
> Emmanuel Lecharny schrieb:
>   
>> Hi guys,
>>
>> I'm facing an interesting question here : should constructors throw
>> checked exceptions?
>>
>> I just feel like I don't like the idea at all, but may be I'm wrong...
>>
>> The problem is that for the new ServerEntry API, I have to guarantee
>> that the constructors are called with valid parameters. There are many
>> possible options :
>> 1 -  use Assert in the constructors (but they will be disabled by
>> default if you don't add the -ea in the JVM command line)
>> 2 - use Checked Exception (but then the caller will have to
>> try...catch the code
>> 3 - use Runtime Exception
>> 4 - don't do anything in the constructors, but handle the controls in
>> setters
>> 5 - just consider the user won't use the constructors with bad parameters
>> 6 - default to a base object if inside the constructor, we have some
>> exception
>>
>> This is not clear to me what should be the best solution. ATM, I
>> incline to think that solution 3 is the less offending.
>>     
>
> +1 for 3
>
> |What about java.lang.IllegalArgumentException? It says precisely what's
> the problem (and fits to your needs) and is a Subclass of RuntimeException?|
>   
This is what I had in imnd, but it was too long to type, so I refered to 
the parent class instead :)
> My 2 cents
> Felix
>
>   


-- 
--
cordialement, regards,
Emmanuel L├ęcharny
www.iktek.com
directory.apache.org



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