Re: [Springframework-developer] Number Types in Configuration

[Rob H. <ro...@ca...>]

Fair point - I guess we'll have to live with it as it is :)

Colin Sampaleanu wrote:

> I'm trying to say it can't even be done. If you are trying to set an 
> Object type (which is the value part of a key/value pair, for 
> example), then '3000L' is a perfectly valid String. Short of Spring 
> being given a hint as with the 'type' attribute, it would be erronous 
> to just assume that anything which looks like that is a Long...
>
> Colin
>
>
> Rob Harrop wrote:
>
>> Actually, I'm not too sure that we can get it to work using the
>> PropertyEditor mechanism - it would definitely need additional 
>> support in
>> the core itself.
>> The 'type' attribute approach works well, but it can get quite 
>> verbose if
>> you have to enter a bunch of values that need to be non-standard types.
>>
>> Rob
>>
>> -----Original Message-----
>> From: spr...@li...
>> [mailto:spr...@li...] On 
>> Behalf Of
>> Colin Sampaleanu
>> Sent: 27 March 2005 15:31
>> To: spr...@li...
>> Subject: Re: [Springframework-developer] Number Types in Configuration
>>
>> Rob Harrop wrote:
>>
>>  
>>
>>> Just seen this post on the forum: 
>>> http://forum.springframework.org/viewtopic.php?t=4350 and I think it 
>>> would be a really good idea if you could use Java language semantics 
>>> for numbers inside the configuration file. So, for example, you can 
>>> specify 3000L and have it be a Long rather than an Integer. This is 
>>> much simpler than the current solution.
>>>   
>>
>>
>> Rob,
>>
>> How is this really supposed to work in terms of implementation 
>> though? Keep in mind right now the values are Strings, and then a 
>> PropertyEditor takes care of converting to the target type (when 
>> directly setting a property). How is Spring supposed to know that 
>> this is going to be a target Long, as opposed to just a string, given 
>> that what is being set is of type Object?
>>
>> On the other hand, the value element does have a 'type' attribute, so 
>> this can be specified for this case:
>>   <value type="java.lang.Long">30000</value>
>>
>> Colin
>>  
>>
>
>
>
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