Re: [eclipselink-users] How to get MOXy to trim the text values?

["polly.c.chang" <polly.c.chang@xxxxxxxxx>]

Hi Matt,

I was going to wait for the enhancement request to be implemented, but that
has moved to version 2.0.  So now I need to implement a fix for our project. 
:)

Can you give me some advice as to whether the Converter or the
AttributeAccessor is better?  It seems to me that if I go the Converter
route, it might interfere with enums.  So if I go the AttributeAccessor
route, I need to create two accessors--one to extend
InstanceVariableAttributeAccessor and one to extend MethodAttributeAccessor. 
Then I would override the setAttributeValueInObject() method.  Does that
sound right?

Just as an example, when I *don't* trim the string, I get this error with
enums.  Which approach do you recommend for fixing this?

Thanks!!
--Polly

Caused by: Exception [EclipseLink-116] (Eclipse Persistence Services - 1.0.2
(Build 20081024)): org.eclipse.persistence.exceptions.DescriptorException
Exception Description: No conversion value provided for the value [
            ] in field [text()].
Mapping:
org.eclipse.persistence.oxm.mappings.XMLDirectMapping[code-->text()]
Descriptor: XMLDescriptor(com.infor.common.model.fields.ResponseCode --> [])
	at
org.eclipse.persistence.exceptions.DescriptorException.noFieldValueConversionToAttributeValueProvided(DescriptorException.java:1021)
	at
org.eclipse.persistence.mappings.converters.ObjectTypeConverter.convertDataValueToObjectValue(ObjectTypeConverter.java:140)
	at
org.eclipse.persistence.mappings.converters.EnumTypeConverter.convertDataValueToObjectValue(EnumTypeConverter.java:101)
	at
org.eclipse.persistence.oxm.mappings.XMLDirectMapping.getAttributeValue(XMLDirectMapping.java:267)

...



Matt MacIvor wrote:
> 
> Hi Polly,
> 
> Currently EclipseLink MOXy considers everything inside an element to be 
> significant, and therefore doesn't trim the value. You can work around 
> this in a couple of ways.
> 
> One would be to implement a Converter (see 
> org.eclipse.persistence.mappings.converters.Converter interface) and add 
> this to your mapping with a session customization. This would allow you 
> to manually trim the value before it's set in your object. You could 
> also do this with a custom attribute accessor. (see 
> org.eclipse.persistence.mappings.AttributeAccessor).
> 
> I agree there should be an easier way to do this. We should be able to 
> just add a flag on XMLDirectMapping to indicate that string values 
> should be trimmed.
> 
> Could you enter an enhancement request to this effect?
> 
> Thanks,
> 
> -Matt
> 
> amphoras wrote:
> 
>>Hi,
>>
>>I mapped a field in my Java class to an XPath like
"ns1:CountryCode/text()".
>>
>>I find that when the XML looks like this:
>>                            <CountryCode listID='' listAgencyID=''
>>listAgencyName='' listName='' listVersionID='' name='' languageID=''
>>listURI='http://www.foo.com' listSchemeURI='http://www.foo.com'>
>>                            USA
>>                            </CountryCode>
>>
>>The value that gets unmarshalled is "                            USA". 
All
>>those spaces that were used for formatting are preserved.  Is there a way
to
>>configure EclipseLink to trim the spaces on either end of the string and
>>just give me "USA"?
>>
>>Thanks!
>>--Polly
>>  
>>
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