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https://issues.apache.org/jira/browse/TUSCANY-709?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12472965
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Yang ZHONG commented on TUSCANY-709:
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Thanks to Hasan for the comment.
I don't see Resource defining EXTENDED_META_DATA. Where is it defined please?
Did you mean "EXTENDED_META_DATA" as a String?
XMLResource.OPTION_EXTENDED_META_DATA is just a pointer, or a constant.
It doesn't mean it can only be used towards XMLResource instance.
So are XMLResource.HREF, XMLResource.NIL, XMLResource.TYPE, and so on;
they all can be used anywhere.
> Loads DataGraph in designated scope(TypeHelper)
> -----------------------------------------------
>
> Key: TUSCANY-709
> URL: https://issues.apache.org/jira/browse/TUSCANY-709
> Project: Tuscany
> Issue Type: Improvement
> Components: Java SDO Implementation
> Affects Versions: Java-M2
> Reporter: Yang ZHONG
> Priority: Minor
> Fix For: Java-SDO-Mx
>
> Attachments: patch.709
>
>
> SDOUtil.loadDataGraph doesn't support scope, this improvement tries to
> address that.
> TypeHelper#define registers Types with the corresponding TypeHelper instance
> (scope)
> and XMLHelper#load utilizes the registered Types from the corresponding scope
> to instantiate DataObject instances.
> Unfortunately yet, current SDOUtil.loadDataGraph
> 2-1. can't designate scope to register serialized Types,
> 2-2. and can't designate scope to utilize already registered Types in order
> to instantiate user expected DataObject instances.
> An example of 2-1 is SerializeTypesTestCase had to
> // The following is a kludge to force deserialization of metadata
> into a different TypeHelper (scope)
> // TBD figure out a proper non-EMF way to do this.
> Map options = new HashMap();
> Object differentFromSerializing = ((TypeHelperImpl)
> deserializingTypeHelper).getExtendedMetaData();
> options.put(XMLResource.OPTION_EXTENDED_META_DATA,
> differentFromSerializing);
> This proposal tries to adress scope by
> 2-1. add new SDOUtil.loadDataGraph(InputStream inputStream,Map
> options,TypeHelper scope)throws IOException
> 2-2. deprecate old SDOUtil.loadDataGraph(InputStream inputStream,Map
> options)throws IOException
> Any comment is welcomed.
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