About

OverviewFront Page

What's NewHistory As It Happens

Upcoming EventsWhere Do I Go Tommorrow?

ScreenshotsPictures, Pictures, Pictures

TestimonialsWhat Users Say About Vamp

CreditsThanks, Thanks, Thanks

ContactAre You Real? - Ich Spreche Deutsch

Site MapFind It Quick

Projects

Vamp StudioPackage, Sign and Publish Your App

Package ManagerCreate and Share Your Own CD App Collections

App CentralFind the Best Apps On The Web

JNLP ValidatorDTD, XML Schema, Relax

jnlp2htmlCreate Your Own App Catalog

Web Start Cache ExplorerUnder the Hood: Web Start's Cache Revealed

Web Start Cache UtilityInject Your App Into Web Start's Cache

Ant Task SuiteAutomate, Automate, Automate

vampgetGrab Apps for Offline Consumption

CD App InstallerCreate Your Own Single-Jar, Offline Installer

CD App Installer IICreate Your Onw Self-Executing, Single-Jar Installer

CD Installer MissionGreat Things Are Coming

Download

BinariesGet It Now

DocumentationPDF Booklets, Presentations

Support

DiscussionAsk Questions

FAQAnswer, Answers, Answers

Professional Services

InfoHire Me - Yes, I'm Available

Web Start

Web Start LinksEverything to Get Started

Unofficial FAQAnswers, Answers, Answers

JNLP Tag Quick ReferenceQuick Reference to Tags and Attributes

JNLP Tag ReferenceAll Tags Explained, Real-World Examples

Configuration ReferenceHand-tune Web Start's configuration (jawaws.cfg); all config settings explained

Offline Installer TutorialCreate Offline, No-Java, High-Speed Installer for Web Start under Windows

Installation ResourcesCreate Your Own Java Runtime Plus Web Start Installer

os and arch CollectionLinux, Windows, Mac, Solaris

Java 2 Runtime DirectoryLinux, Windows, Mac, Solaris

Web Start 2.0If I Were King

Print Version

Vanessa - Vamp's Multi-Schema Validator for JNLP

Kick Start Vanessa Now

What is Vanessa?

Vanessa is Venus Application Publisher's multi schema validator for JNLP. Vanessa loads your JNLP file, checks if it is well-formed, validates it against built-in DTD and W3C XML schemas and collects all warnings and errors. Vanessa also creates a tree structure view from your JNLP file.

Vanessa comes with built-in schemas, but also allows you to use your own schemas. Vanessa uses Sun's multi schema XML validator that allows you to use Relax Namespace, Relax Core, Relax NG, Trex, XML DTD, and a subset of W3C XML schema part 1.

To spare you any setup hassle, Vanessa ships with a simple front end gooey on top of the weight-lifting validation engine so you can kick start Vanessa with a single-click using Web Start.

First Impression - Vanessa in Action

Vanessa dressed up in a Mozilla theme taking a breath after validating Hazel's JNLP file.

Arguments - What to feed Vanessa

Vanessa takes in the following arguments:

Argument	Description	Required
JNLP File	The JNLP document to validate. You can either specify a URL or a plain-old vanilla file name.	Yes
DTD Schema File	The DTD schema to validate your JNLP document against. You can either specify a URL or a plain-old vanilla file name. If no DTD schema is passed in, the built-in DTD schema will be used.	No
XML Schema File	The XML schema to validate your JNLP document against. Note, that you are not limited to W3C XML Schema as Sun's multi schema validator engine also runs on Relax Namespace, Relax Core, Relax NG and Trex. You can either specify a URL or a plain-old vanilla file name. Note also, that Sun's multi-schema validation engine will detect the schema language automatically regardless of its file extension. If no XML schema is passed in, the built-in W3C XML schema will be used.	No

Examples

Validate Hazel's JNLP file against built-in schemas

JNLP File: http://www.jenomics.de/vamp/hazel.jnlp

Validate Hazel's JNLP file against a custom W3C XML schema

JNLP File: c:/sandbox/venus/test/hazel.jnlp
XML Schema File: c:/sandbox/venus/test/schema/jnlp.xsd

Roll Your Own Schemas

To get started you can check out Vanessa's built-in DTD schema or built-in W3C XML schema.

To learn W3C Schema, check out these links at xml.com:

For more detail, check out the W3C Schema Specs:

To learn Relax, "How to Relax" third-party link is a good starter. Relax NG has its own tutorial . To learn Trex, check out the "Trex tutorial" .

Limitations - Vanessa has wrinkles

Sun's multi-schema validator library has some limitations. For further details, check out the Known Limitations section in the Usage Guide. (Sorry, I can't link to it as the Usage Guide is not online. You have to unpack Sun's binary multi-schema validator distribution.)

Vanessa's built-in W3C XML schema currently doesn't add default or fixed attribute values to your XML document.