[jira] Updated: (AMQ-20) XmlMessage type support

["Hiram Chirino (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/activemq/browse/AMQ-20?page=all ]

Hiram Chirino updated AMQ-20:
-----------------------------

    Fix Version: 4.3

Cool idea.. may ned a little more thought into how we will implement it.  Putting on roadmap 4.3

> XmlMessage type support
> -----------------------
>
>          Key: AMQ-20
>          URL: https://issues.apache.org/activemq/browse/AMQ-20
>      Project: ActiveMQ
>         Type: Wish

>     Reporter: james strachan
>     Priority: Minor
>      Fix For: 4.3

>
>
> A real common use case I see is financial systems, sending around lots of XSD documents over some protocol (HTTP / JMS) - if both ends know the schema formats - then sending / receiving an efficient binary XSD format (using longs / ints / doubles for numeric / date types on DataInput/Output) would totally rock - to the end user it'd look like XML beans or text or DOM but on the wire could be super fast & no xml parsing.
> e.g. if both sides of the wire were using Java & were using XMLBeans on both sides as a bean / DOM / XPath / XQuery API, then we could take an xmlbeans schema & lazily bytecode generate a marshaller per schema to use an efficient wire format, assuming the other end knows the schema. Then the message on the wire looks like
> http://some.repository.com/someschema/version/1.2.3
> [lots of bytes]
> so the reader would load the XSD schema from the given universal URI, if its not created an xmlbeans schema & marshaller for it yet, do so, then it can decipher the bytes.
> Then in those times where you're sending/receiving 100K messages per hour of the same schema, you don't have all that XML parsing to deal with - it'd use a super fast ASM.1 style binary format which to the application programmer could be marshalled into a DOM / bean / XPath / XQuery model, yet have a super-fast wire format.
> We could expose these types of messages to the user via a special Destination which would accept either Text messages or Object messages - if the ObjectMessage contains an xmlbean then it'd use the super-efficient binary serialization on the wire & presenting it to the user as either an ObjectMessage, TextMessage or maybe a new XmlMessage (or all 3)

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