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B.4. Element Information Items

An Element Information Item holds the most frequently needed data in an XML document. There is one top-level element, associated with the Document Information Item, and all but a handful of information items are its descendants.

This information item starts with a ContentHandler.startElement() call, and ends with a ContentHandler.endElement() call.

   

Property

Callbacks

Explanation

[namespace name]

ContentHandler.startElement(), namespaceURI parameter

[local name]

ContentHandler.startElement(), localName parameter

[prefix]

ContentHandler.startElement(), qName parameter (when available)

The QName (namespace-prefixed name) includes any prefix available; for example, a QName xhtml:a uses the prefix xhtml.

[children]

See the sections for each type of information item: Element, Processing Instruction, Unexpanded Entity Ref, Character, Comment.

[attributes]

ContentHandler.startElement(), attributes parameter, DeclHandler.attributeDecl()

When the [namespace attributes] property value is accessible, both groups of attributes are intermixed. Values that are #IMPLIED, but not specified in the document text, are only visible through the attributeDecl() callback. If you need to know about such attributes, record them during DTD processing.

[namespace attributes]

ContentHandler.startElement(), attributes parameter (when available)

If the namespace-prefixes feature flag is true, these attributes are mixed with the [attributes] property. They're the ones with QName values of xmlns, or starting with xmlns:. [28] Otherwise, this data is unavailable.

[in-scope namespaces]

See the section on Namespace Information Items.

[base URI]

computed using xml:base

In the absence of xml:base attributes, this is normally the value that Locator.getSystemId() exposes during the startElement() callback.

[parent]

Applications must keep track of this information item if it is needed.

Manually associate these with the namespace URI http://www.w3.org/2000/xmlns/



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