Addl SAX APIs

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3b. Other SAX APIs

Link Summary

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Glossary Terms

namespace

This page continues the overview of the SAX APIs, summarizing those you are most likely to use when building a SAX-based application.

Additional SAX Interfaces

In addition to the APIs described in the overview section, the org.xml.sax package defines a few other interfaces that you are likely to use when you write a SAX application.

Interface Description

AttributeList

Defines methods that return the attributes defined for a tag, and their values. When the startElement method is invoked in a DocumentHandler, for example, an AttributeList object that encapsulates the attribute values is passed as an argument.

Locator Defines methods that return document-location information. Includes methods like getSystemId() which returns the local URL for a document and getLineNumber(), which gives the starting position of the last item that the SAX parser processed. Less frequently used methods include getPublicId(), which returns a document URI, and getColumnNumber().

Utility Package

The utility package, com.sun.xml.util, contains a number of classes that are helpful for building real-world applications.

Class Description

MessageCatalog

This class helps when building localized applications. It lets you use an identifier to look up a string for a given language. The code uses the same identifier, but changing the language produces messages that are appropriate for the selected locale.

XmlChars The methods in this class tell whether a character is valid in a given role (for example, as part of a name) according to the XML specification.

XmlNames The methods in this class tell whether an identifier is valid in a given role (for example, as a name, token, or qualified name) according to the XML and XML Namespace specifications.

Top Contents Index Glossary

*Interface*	*Description*
AttributeList	Defines methods that return the attributes defined for a tag, and their values. When the `startElement` method is invoked in a `DocumentHandler`, for example, an `AttributeList` object that encapsulates the attribute values is passed as an argument.
Locator	Defines methods that return document-location information. Includes methods like `getSystemId()` which returns the local URL for a document and `getLineNumber()`, which gives the starting position of the last item that the SAX parser processed. Less frequently used methods include `getPublicId()`, which returns a document URI, and `getColumnNumber()`.

*Class*	*Description*
MessageCatalog	This class helps when building localized applications. It lets you use an identifier to look up a string for a given language. The code uses the same identifier, but changing the language produces messages that are appropriate for the selected locale.
XmlChars	The methods in this class tell whether a character is valid in a given role (for example, as part of a name) according to the XML specification.
XmlNames	The methods in this class tell whether an identifier is valid in a given role (for example, as a name, token, or qualified name) according to the XML and XML Namespace specifications.