[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] re: storing application state as XML
I wrote: >> When opening a file, we tolerate quite a lot (eg someone could add >> attributes/elements that we'll ignore). David Byrden wrote: >Various issues can arise when you modify >a class, then try to deserialize objects stored by the >earlier version. So the decision to ignore unknown attributes >can become important later on. Have a look at Java Serialisation >and see how they address it. I agree. One must take care. Currently, such an "ignore unknown attributes" is there to facilitate read-only data, and (where practicable) version-independence in the software. With XML, we get to choose how far we can force a compatible format, and when we need to add version info. This was never an option with MFC, and we saw no way of acheiving even limited forwards-compatibility of file format. Steve Kearon xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev@i... Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/ and on CD-ROM/ISBN 981-02-3594-1 To (un)subscribe, mailto:majordomo@i... the following message; (un)subscribe xml-dev To subscribe to the digests, mailto:majordomo@i... the following message; subscribe xml-dev-digest List coordinator, Henry Rzepa (mailto:rzepa@i...)
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