[Springframework-developer] Spring IntelliBean(tm) support

[Alef A. <ale...@in...>]

All,

Arjen and I have just added IntelliBean(tm) support to Spring!

Error messages resulting from typos in XML files will now be accompanied 
with suggestions. Some examples:

class Person {

   public setName(String name);
   public setMyString(String string);
   public setMyStrings(String string);
}

<bean class="Person">
   <property name="names" value="John"/>
</bean>

--> exception message: Invalid property 'names' ..... Did you mean 'name'?

<bean class="Person">
   <!-- notice the lowercase mystring property -->
   <property name="mystring" value="blah"/>
</bean>

--> exception message: Invalid property 'mystring' ..... Did you mean 
'myString' or 'myStrings'?

Juergen, there's a findPossibleAlternatives() method in the 
BeanWrapperImpl and we've added an additional constructor to the 
NotWritablePropertyException taking a String[] containing possible 
alternatives. A corresponding message is generated at construction time. 
I could only find one place to generate possible alternatives in the 
BeanWrapperImpl (in the setPropertyValue() method).

There might be some possible optimizations in the Levenshtein algorithms 
(using a three-dimensional array instead of a two-dimensional one two 
prevent the algorithm from being executed once for every property), but 
since the generation of alternatives is only done when throwing an 
exception anyway, that's not a big deal I guess for now.

Comments welcome!

regards,
Alef

p.s. modifications in BeanWrapperImpl, BeanWrapperTests, 
NotWriteablePropertyException