Thanks for clicking CSEMA Videos Follow us on Difference between DOM and SAX Parser - In order to use DOM and SAX parser correctly, its important to know that How DOM and SAX parser. So in the above case, when your SAX parser encounters the start tag(DOM (Document Object Model) allows you to create an object representation of.
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Difference between DOM and SAX Parser
Other tasks, such as sorting, rearranging sections, getting from a link to its target, looking up information on one element to help process a later one, and the like, require accessing the document structure in complex orders and will be much faster with DOM than with multiple SAX passes.
Some implementations do not neatly fit either category: Due difference between dom and sax the nature of DOM, streamed reading from disk requires techniques such as lazy evaluationcaches, virtual memory, persistent data structures, or other techniques one such technique is disclosed in US patent Processing XML documents larger than main memory is sometimes thought impossible because some DOM parsers do not allow it.
However, it is no less possible than sorting a dataset larger than main memory using disk space as memory to sidestep this limitation. Virtually any difference between dom and sax of XML validation requires access to the document in full.
You can move elements or attributes around to make a different file, you can run it through a transformer.
You can search it using XPath to find sequences of elements or structures in the document and process difference between dom and sax as you wish. When you are done, you can serialize it to produce an XML file, or an xml-format stream. It does not have large demands for memory.
DOM is supported in Java. Its specification is regulated by the World Wide Web Consortium. You just have to do it. In StAX such a mechansim is already built in.