The document provides an introduction to getting started with Oracle SOA and includes examples for using different features in XML Schema (XSD) files. It describes how to create Student.xsd and generate an XML file from it. It then shows how to create ScienceStudent.xsd and ArtStudent.xsd that include and extend Student.xsd using features like import, include, ref, abstract and block. The examples demonstrate how to link multiple XSD files and generate corresponding XML documents.

1. Getting Started with Oracle SoA
BASIC CONCEPT OF ORACLE SOA Lab#3
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History:
Version Description Change Author Publish Date
0.1 Initial Draft Shiva Kant Pandey 21th Aug 2012
0.1 Review#1 Amit Sharma 29th
Aug 2012
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2. PART III : EXAMPLES ON XSD
How to use following in xsd:
• Import
• include
• ref
• Block = #all
• Abstract
Below are the examples we are going to use
1. Student.xsd
2. Science Student.xsd
3. ArtStudent.xsd
Also learn how to generate XML from XSD.
EXAMPLE 1. Student. XSD
Step 1: Create a new xsd file under project
click xsd--> file name --> Target Namespace-->prefix -->ok
now created successfully Student.xsd as shown in figure
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3. Step 2: After creating new xsd i.e student .xsd it can be easily seen under
project under xsd as shown
• Prefix used is stdobj.
• Registered namespace
• Target namespace is shown under registration .
• Now start writing xml in xsd i.e
<xsd:element name ="Student" type="StudentType"></xsd:element>
In this statement we have defined Student as element &
stdobj:StudentType as its type.
Here stdobj is prefix & is used so that parser can identified uniquely each
element.
• Here StudentType is ComplexType xsd & so it contains a group of elements
(Name, Number, Email, Lang1Marks,Lang2 Marks,Lang3MArks ) & these
elements are again defined by their types ex. string , integer.
• All this structure comes under xsd schema.
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4. Step 3: Click on Design Mode & see whatever structured
in xsd.
Step 4 : How to convert this Student.xsd into xml form .
click on NEW--->All Technologies--->XML --->Xml Document From Xml
Schema--->Ok.
• Choose XML file name examlpe StudentDoc.xml
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5. • Browse student.xsd file
Click on Browse tab
Now select location then choose Student.xsd & then ok .
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7. • Check Target Namespace
• Check Root Element
• depth should be 3
• select UTF-8 encoding
• finally click finish.
After finish click xml will generate automatically. So this xml is example of
student xsd.
NOTE: Similarly later we will create xml from ScienceStudent .xsd &
ArtStudent .xsd .
Step 5: Create new ScienceStudent.xsd by clicking
Right click xsd--->choose New --->select File Name --> select Target Namespace-->
Prefix---> OK .
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8. NOTE :
1) Target Namespace should be same for each xsd under same project .
2) prefix will change ex: scobj
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9. Step 6: Create ScienceStudent.xsd here & also include Student.xsd as shown
below.
Note: There are two operations include & import .
• Include is used when we have to include any xsd into other xsd under same project
under same xsd for example student.xsd is included by
ScienceStudent.xsd under similar project or in similar schema location.
• Import is used when we have to include any xsd into other xsd under different
project
& hence we need to either copy the xsd to be imported from its physical
location or by ORA MDS (oracle meta data system repository) we will
discuss this import in our next docs later.
Here in figure we have simply included the Student.xsd into ScienceStudent.xsd
by using following syntax
Now use this Student.xsd elements in ScienceStudent.xsd inside its
ComplexType .
Syntax used is Complex type --> ComplexContent--> extension base (include
here student.xsd with its new prefix scobj ) and under Extension we can use we
can use <xsd:sequence> & inside it elements .
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10. Step 7: Click on Design Mode.
Step 8: Expand Science StudentType
Included portion
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11. Step 9: Create XML Document from XML Schema as discussed before
NEW--->All Technologies ---> XML---->XML document From Xml Schema--->Ok
Click next
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12. click finish
Now xml document created automatically from xml schema.
Here notice that this xml is included student xml under Science Student xml.
Step 10 : Create new xsd i.e Art Student.xsd
Right click on xsd under project ---> New--->All Technology --->XML---> Xml
schema --->ok---> File Name (ArtStudent.xsd) ---> Target namespace (similar)
----> Prefix(artobj)---> OK
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13. • Here we have referred student.xsd into ArtStudent.xsd & not extending base just
referring .
• Also include Student.xsd
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14. Step 11: Go to Design Mode
• Referenced xsd type .
• Included xsd
Step 12: Create xml document from xml schema as discussed earlier.
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15. Note here since student type is referred & not extended as base & hence
student elements are inside student & this student is inside art student.
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16. Use of Abstract:
ABSTRACT:
• If abstract = true then no one can use that xsd further i.e it restricts vise versa for
false condition
USE OF BLOCK #ALL :
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17. Block# all blocks to further sharing or inclusion
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