Examples of org.apache.tuscany.sca.common.xml.stax.impl.StAX2SAXAdapter

• org.apache.tuscany.sca.common.xml.stax.impl.StAX2SAXAdapter
  Adapter that converts from StAX to SAX event streams. Currently the following SAX events are not generated:

  • ignorableWhitespace
  • skippedEntity
  Also the following StAX events are not mapped:
  • CDATA
  • COMMENT
  • DTD
  • ENTITY_DECLARATION
  • ENTITY_REFERENCE
  • NOTATION_DECLARATION
  • SPACE
  StAX ATTRIBUTE events are ignored but the equivalent attributes (derived from the START_ELEMENT event) are supplied in the SAX startElement event's Attributes parameter. If the adaptor is configured to pass namespace prefixes then namespace information will also be included in the Attributes; StAX NAMESPACE events are ignored.

  Another issue is namespace processing. If the reader is positioned at a sub-node, we cannot capture all the in-scope namespace bindings. Therefore we cannot re-create a proper SAX event stream from a StAX parser.

  For example

  <a:root xmlns:a="foo" xmlns:b="bar"><b:sub>a:foo</b:sub></a:root>

  And if you are handed a parser at <b:sub>, then your SAX events should look like:

  <b:sub xmlns:a="foo" xmlns:b="bar">a:foo</b:sub>

  not:

  <b:sub>a:foo</b:sub>

  Proposal: we change the receiver of SAX events (SDOXMLResourceImpl) so that it uses NamespaceContext to resolve prefix (as opposed to record start/endPrefixMappings and use it for resolution.) @version $Rev: 801844 $ $Date: 2009-08-07 00:50:19 +0100 (Fri, 07 Aug 2009) $

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