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From "Rich Scheuerle (JIRA)" <>
Subject [jira] Commented: (AXIS2-4603) JAX-WS: JAXB Unmarshal code no longer has direct access to the required XMLStreamReader
Date Fri, 15 Jan 2010 22:54:54 GMT


Rich Scheuerle commented on AXIS2-4603:

Thanks for the suggestion, but there are two problems with that approach. 

1) The JAXB Umarshaller works more efficiently if the XMLStreamReader from the same vendor
is used.  Thus there is a need to access the original parser.

2) Adding an XOPEncodingStreamReader may be one solution for accessing DataHandlers...but
I believe that it also adds a buffering.



> JAX-WS: JAXB Unmarshal code no longer has direct access to the required XMLStreamReader
> ---------------------------------------------------------------------------------------
>                 Key: AXIS2-4603
>                 URL:
>             Project: Axis2
>          Issue Type: Bug
>          Components: jaxws
>            Reporter: Rich Scheuerle
>            Assignee: Rich Scheuerle
>   Original Estimate: 120h
>  Remaining Estimate: 120h
> Background:
> The JAX-WS programming model uses JAX-B objects as the representation of user business
> The JAX-WS runtime in Axis2 is responsibile for building the JAXBContext and marshaling
and umarshaling the JAX-B objects.
> The marshaling and unmarshaling includes marshaling and unmarshaling MTOM data.
> When unmarshaling JAXB, the streaming, non-cached parser (original XMLStreamReader) or
cached XMLStreamReader (OMStaXWrapper) is used
> as the input XMLStreamReader for the JAXB unmarshal code.
> Problem:
> The Axiom implementation has been changed such that the non-cached parser is now wrapped
by one or more other axiom wrappers or delegates.
> Failure to the access the original steaming parser has resulted in poorer performance
in some cases when unmarshaling
> WSCommons-518 now exposes additional methods to access the original non-cached parser.

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