Orbeon Forms User Guide

Getting Started
- Welcome
- Changes
- Installing
- Orbeon Forms Tutorial
- Frequently Asked Questions
Core Technologies Reference
- XForms
- Page Flow
  - Page Flow Controller
  - Page Flow Epilogue
- XML Pipelines (XPL)
  - Introduction to XPL
  - XPL 1.0 W3C Submission
Other Technologies Reference
- Resource Managers
- Properties
- Non-XML Documents
- Error Page and Dialog
- Listeners
- URL Rewriting
- XML Namespaces
Processors Reference
- Producing XML
- Serializing XML
  - HTTP Serializer
  - Other Serializers
- Transforming XML
- Querying Data
- Interoperability
  - Delegation
  - Java
- Document Formats
- Messaging
  - Email
  - Instant Messaging
- XML Pipelines (XPL)
  - Pipeline
- Validation
- Scheduler
- Other Processors
API Reference
- Processor API
- Pipeline Engine API
Integration

XML Namespaces

1. Introduction
2. Namespace Usage in Orbeon Forms

1. Introduction

Namespaces play an important role in XML applications. In particular, they allow for modularity and for mixing different XML vocabularies in a single document, for example XHTML and XForms.

For more information, please visit the XML Namespaces specification.

2. Namespace Usage in Orbeon Forms

The number of XML namespaces used in Orbeon Forms is quite large, and it is easy for developers to lose track of which is which. The table below summarizes the usage of XML namespaces in Orbeon Forms, with links to the relevant documentation and specifications.

Namespace URI Usual Prefix Usage Example Specification

http://www.orbeon.com/oxf/pipeline p XML Pipeline Language program (XPL) p:processor XML Pipeline Language

http://www.orbeon.com/oxf/processors oxf Standard Orbeon Forms processors referred from XPL programs oxf:http-serializer Orbeon Forms processors documentation

http://orbeon.org/oxf/xml/xforms xxforms Orbeon Forms extensions to XForms xxforms:appearance Orbeon Forms XForms Reference

http://orbeon.org/oxf/xml/xinclude xxi Orbeon Forms extensions to XInclude xxi:omit-xml-base XInclude Processor

http://orbeon.org/oxf/xml/formatting f Orbeon Forms view formatting f:xml-source

http://orbeon.org/oxf/xml/portlet portlet Orbeon Forms portlet tagging portlet:is-portlet-content

http://www.orbeon.com/xslt-function function Orbeon Forms XSLT functions function:evaluate

http://orbeon.org/oxf/xml/local local User-defined XSLT functions local:my-function

http://orbeon.org/oxf/xml/xmldb xdb XML:DB processors configurations xdb:query XML:DB Processors

http://orbeon.org/oxf/xml/sql sql SQL procesor configuration sql:get-column SQL Processor

http://orbeon.org/oxf/xml/delegation delegation Delegation processor delegation:execute Delegation Processor

http://orbeon.org/oxf/xml/datatypes odt SQL procesor XML data types. odt:xmlFragment SQL Processor

http://www.w3.org/2001/XInclude xi XInclude elements

Note

When using XInclude to perform inclusions, with the XInclude processor or during parsing, be sure to use this correct namespace instead of the older http://www.w3.org/2003/XInclude, which is used by some XML parsers (see next entry). Note that the correct version has the older year, 2001, instead of the newer year, 2003.

xi:include XML Inclusions (XInclude) Version 1.0

http://www.w3.org/2003/XInclude xi XInclude elements

Note

This is an obsolete XInclude namespace. Starting with Orbeon Forms 3.6 and above, be sure to use the correct http://www.w3.org/2001/XInclude instead.

xi:include XML Inclusions (XInclude) Version 1.0

http://www.w3.org/1999/XSL/Transform xsl XSLT 1.0 or 2.0 stylesheet. xsl:transform XSL Transformations (XSLT) Version 1.0
XSL Transformations (XSLT) Version 2.0

http://www.w3.org/2005/xpath-datatypes xdt XPath 2.0 datatypes

Note

This URI changes with each release of the XPath 2.0 draft specification, and with each release of the Saxon XSLT processor.

xdt:dayTimeDuration XML Path Language (XPath) 2.0

http://saxon.sf.net/ saxon Saxon XSLT processor extensions saxon:parse Saxon Extensions

http://www.w3.org/2001/XMLSchema xs XML Schema xs:schema XML Schema Part 0: Primer Second Edition
XML Schema Part 1: Structures Second Edition
XML Schema Part 2: Datatypes Second Edition

http://www.w3.org/2001/XMLSchema-instance xsi XML Schema attributes xsi:type XML Schema Part 1: Structures Second Edition

http://www.w3.org/2001/XMLSchema-datatypes N/A XML Schema datatypes, used by XML Schema and by Relax NG XML Schema Part 2: Datatypes Second Edition

http://www.xmldb.org/xupdate xu XUpdate program xu:modifications Orbeon Forms Page Flow

http://www.w3.org/2002/xforms xforms XForms markup xforms:input XForms 1.0
Orbeon Forms XForms Reference

http://www.w3.org/2001/xml-events ev XML Events (used by XForms) ev:event Orbeon Forms XForms Reference

http://www.w3.org/1999/xhtml xhtml XHTML markup xhtml:body XHTML 1.0

http://relaxng.org/ns/structure/1.0 N/A Relax NG 1.0 schema RELAX NG home page
RELAX NG Specification