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Override behavior of KEEP_DEFAULT_CONTENT [message #430548]

Wed, 27 May 2009 04:16

John T.E. Timm

Messages: 161
Registered: July 2009

Senior Member

I would like to override the behavior of the "keep default content" option
such that the default value for an attribute is serialized if and only if
the attribute is required (lower bound > 0). Where is the best place to do
this?

Thanks,

JT

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Re: Override behavior of KEEP_DEFAULT_CONTENT [message #430554 is a reply to message #430548]

Wed, 27 May 2009 10:03

Ed Merks

Messages: 33137
Registered: July 2009

Senior Member

John,

This method in XMLSaveImpl makes the decision:

protected boolean shouldSaveFeature(EObject o, EStructuralFeature f)
{
return o.eIsSet(f) || keepDefaults && f.getDefaultValueLiteral() !=
null;
}

I'm not sure you'll ever want to serialize null though...

John T.E. Timm wrote:
> I would like to override the behavior of the "keep default content"
> option such that the default value for an attribute is serialized if
> and only if the attribute is required (lower bound > 0). Where is the
> best place to do this?
>
> Thanks,
>
> JT
>

Ed Merks
Professional Support: https://www.macromodeling.com/

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Re: Override behavior of KEEP_DEFAULT_CONTENT [message #430573 is a reply to message #430554]

Wed, 27 May 2009 15:38

John T.E. Timm

Messages: 161
Registered: July 2009

Senior Member

Thanks Ed. This is exactly what I was looking for.

JT

Ed Merks wrote:

> John,

> This method in XMLSaveImpl makes the decision:

> protected boolean shouldSaveFeature(EObject o, EStructuralFeature f)
> {
> return o.eIsSet(f) || keepDefaults && f.getDefaultValueLiteral() !=
> null;
> }

> I'm not sure you'll ever want to serialize null though...

> John T.E. Timm wrote:
>> I would like to override the behavior of the "keep default content"
>> option such that the default value for an attribute is serialized if
>> and only if the attribute is required (lower bound > 0). Where is the
>> best place to do this?
>>
>> Thanks,
>>
>> JT
>>

Report message to a moderator

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