RelaxNG Schema Editor
Visual Schema Editor
The schema diagram simplifies the development and understanding
of the Relax NG schema files. oXygen offers a side-by-side presentation of the
schema source and diagram. The diagram is synchronized in real time with the source
editor. Selecting an element in the diagram highlights the corresponding element in the
source editor, while moving the caret in the source editor changes the selection in the
The schema diagram renders all the Relax NG components and allows
you to quickly navigate to the referenced definition of elements, attributes, types,
groups, or patterns.
Two types of visual diagrams are available for a schema: the Full
Model view and the Logical Model view.
- Full Model View
The Full Model view provides a one-to-one correspondence
between the schema components and the graphical nodes. References to different
components can be expanded in-place within the diagram (for instance, element or
attribute references, base types, or schemas that the pattern references).
- Logical Model View
The Logical Model view displays a more compact diagram
obtained by applying the simplification rules.
A list of the defined schema components (elements, attributes, patterns, etc.),
presented in the Outline view, simplifies the navigation through large schemas.
Regardless of the schema language, the smooth editing and the clear and suggestive
rendering make schema editing more fun and easier than ever.
The Visual Relax NG Schema Editor is integrated in the oXygen
standalone distribution and the Eclipse IDE plugin. It is activated when opening an RNG
(Relax NG XML Syntax) file.
Editing actions are available in the Full Model view allowing the addition of new
child or sibling elements on the fly so that the schema remains valid.
Zoom Support for Diagrams
You can easily change the font used for the diagram, and you can
also make the diagrams smaller or larger, depending on the zoom settings available in
Options / Preferences / Editor / Edit modes / Schema Design. These settings are used
when the diagram is printed.
Content Completion Assistant Shows the Relax NG Schema Documentation
The Relax NG schema documentation is presented by the new content completion
support. The Content Completion Assistant offers additional information for the element
and attribute proposals. The documentation for the schema annotations is displayed in a
simple and elegant manner.
Relax NG Schema Model View
The Model view provides schema-related information for the document elements and
attributes. The content model, element type, attributes, attribute type, and constraints
are presented in a compact manner giving you the insight of the document schema while
editing or browsing the document.
Rename Component Schema Refactoring Action
This action allows you to rename any defined names. The scope can
be set to the current file, all the files in project, or the set of files determined by
include/import instructions starting with a specified file.
A preview option allows you to review and approve the changes that will be made on
multiple schemas. The changes are presented in a side-by-side, synchronized view that
compares the initial version with what will result after applying the refactoring
Find References and Declarations of XML Schema Components
You can find either declarations or references of Relax NG
components. The search scope can be the current file, the current project, or a group of
Converting Between Grammar Languages
The converter allows you to convert a DTD or Relax NG (full or compact syntax)
grammar, or a set of XML files to an equivalent XML Schema, DTD, or Relax NG (full or
compact syntax) grammar. Where exact equivalence is not possible due to limitations of
the target language, oXygen will generate an approximation of the source grammar.
The conversion functionality is available from Tools / Generate/Convert Schema.
A grammar being edited can be converted with a toolbar button if that grammar can
be the subject of a supported conversion. For example, if you press the "Convert to ..."
button while editing a DTD document, the following dialog will appear:
You can set the target language of the conversion and the target grammar
Advanced options allow the user to customize various conversion parameters.