[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: XML Stream in C++
If you tried to write a _generic_ XML input stream, there would need to be a decision mechanism as to which class to instantiate that sits outside the >> operator; this would have to be duplicated with minor variations in every class which corresponds to a complex element, along with mechanisms for namespace mapping and attribute assignment; again with large amounts of duplicated code for mapping unordered attributes onto members. The standard pattern for dealing with such commonalties across classes would be to create an object factory to generate objects based on the mapped tagname and a unordered set of attribute objects. Basically you will end up with a lot of responsibilities that are outside the stream class (which to be generic can't know about mappings of tagname to specific class, and is sequential so won't naturally be able to deal with unordered named attributes); so you will end up needing either a DOM or SAX clone (depending on whether you want to specify an API to your generated tree or not) to be the main client of your stream. Pete ******************************************************************** This email and any attachments are confidential to the intended recipient and may also be privileged. If you are not the intended recipient please delete it from your system and notify the sender. You should not copy it or use it for any purpose nor disclose or distribute its contents to any other person. ********************************************************************
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