Using oXygen Using oXygen to build and execute XQuery applications on eXist Date: September 2008 Dan...

Using oXygenUsing oXygen to build and execute

XQuery applications on eXistDate: September 2008

Dan McCrearyPresidentDan McCreary & [email protected](952) 931-9198

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Metadata Solutions

Copyright 2008 Dan McCreary & Associates 2

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Overview• Why oXygen?• Screen layout• Customizing screen layout

– Toolbar– Perspectives

• Editing• Using the XPath Builder


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Why oXygen?

• Tools are Important• oXygen has become the premiere tool

for working with native XML databases• oXygen will be our primary XQuery

development tool• It is important that people feel

comfortable with both the tools and the theory behind XQuery

• Getting to know your tools will make you more productive


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oXygen Data Sources

Tools -> Preferences


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3 “jar” files• This files are part of

the eXist distribution but are used by oXygen to connect to the database

• The files are:– exist.jar– xmldb.jar– xmlrpc-1.2-patched.jar


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Data Source Drivers


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Connection to Localhost

XML DB URI: xmldb:exist://localhost:8080/exist/xmlrpc


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Windows WebDAV Folder

http://localhost:8080/exist/webdav/db


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WebDAV vs ReST

• When using the windows Add Network Place make sure to use the WebDAV url

http://localhost:8080/exist/rest/db

http://localhost:8080/exist/webdav/db

Web Browser (to execute any XQuery)

Windows File System (drag and drop)


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Major Screen Areas

• Database browser

• Editor– note the tabs on the top

• XPath Expression Builder


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Hello World in XQuery

xquery version "1.0";

let $message := 'Hello World'

return $message


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input

output

ExecuteValidity


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Transformation Scenario

• A transformation senerio is a specific configuration on how you want to run your transforms

• You can use oXygen’s built-in Saxon XQuery processor for doing standard XQuery testing on small local files

• Saxon is highly compliant with XQuery 1.0 and because it runs as part of oXygen you can do advanced stepwise debugging within oXygen

• You will not be able to use Saxon if you are using any of eXist’s XQuery extension in your XQuery


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Testing with Saxon

oXygen

Saxon

XQueryXML

Output


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Executing on eXist

oXygen

eXist “jars”

XQueryXML

Output

eXist


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Return results from eXist to oXygen


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HTML Rendering Within oXygen

• Configure oXygen to render resultsdirectly into web browser view

• Note this is part of the transformation scenario

CheckHere


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HTML Output in Lower Window


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Note• Many context-aware functions that will run

correctly if executed from a browser may not run within oXygen

• There is currently no way to configure what rendering engine oXygen uses (IE, FireFox, Chrome etc)

• For best results, test in at least two different browsers, especially if you are using complex CSS files


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Toolbars

• Can be customized to your preferences

• Highly recommended for this class:– File– Edit– Transformation– XPath


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Configure Toolbars


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Saving Your Perspective

• This will save the positions of all your views within oXygen.


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Subversion• Version control system• Examples stored at Google Code

– http://xrx.googlecode.com/svn/trunk/

• You can “checkout” a read-only copy using Subversion’s Subversion Client (Syncro SVN)

• From oXygen:– Tools -> SVN Client


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Subversion Access


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Thank You!Please contact me for more information:• Metadata Management Services• Web Services• Service Oriented Architectures• Business Intelligence and Data Warehouse• Metadata Registries• Semantic Web

Dan McCreary, PresidentDan McCreary & Associates

Metadata Strategy [email protected]

(952) 931-9198

Using oXygen Using oXygen to build and execute XQuery applications on eXist Date: September 2008 Dan...

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