Hello, I have been reading up on how to use XML from within android. Apparently the interfaces are SAX which allows callbacks to be called when each element is processed, DOM which allows in-memory tree representations of XML, JAXP which can be used to validate XML given an XML Schema, and JAXB which is available but takes up 8MB or so of space and would be used to convert back and forth between XML and some annotated Java classes automatically at the aforementioned disk storage price. Apparently JAXB used to be used to validate but since JAXB 2.0 that function has been delegate to JAXB. Apparently there are three DOM levels, and Android's JDK supports level 2:
http://developer.android.com/reference/org/w3c/dom/package-summary.html plus the load/store facilities available in DOM Level 3 which AFAIK are used to serialize/deserialize XML instances to and from memory? http://developer.android.com/reference/org/w3c/dom/ls/package-summary.html Then there are a variety of other XML APIs which do not come with Android the most nototrious being xerces from apache foundation which used to not be bundled with jdk. Since jdk 5 it is, but apparently people don't use it because java has its own DOM API. Why would you want to use it when java bundles a DOM API already. What more can xerces offer? And what more does the full xerces implementation offer if you were to add the xerces jar file to your APK? Anyways, in the end I decided I am going to use DOM to read my files and simply throw an exception if what I receive does not conform to what I expect. I also want to build my XML files with DOM prior to sending the XML over a network. I'm not clear on the following: where do I find good docs on DOM for Android. Is the API all there is available? Several books such as the following: http://www.amazon.com/Java-XML-Brett-McLaughlin/dp/059610149X/ref=sr_1_1?ie=UTF8&qid=1326644460&sr=8-1 seem to be somewhat obsolete and document xerces or obsolete APIs/issues (such as org.apache.xerces.parsers.DOMParser which now seems to be replaced with: import javax.xml.parsers.DocumentBuilderFactory; import javax.xml.parsers.DocumentBuilder; Anyways, any pointers to tutorials on using DOM on Android to process and build XML using DOM welcome. One useful link I found was the following: http://www.mkyong.com/java/how-to-read-xml-file-in-java-dom-parser/ Thanks for your input, John Goche -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
