The document provides an introduction and agenda for getting started with Oracle SOA. It discusses basic concepts like XML, XPath, XSD, and WSDL. It then demonstrates step-by-step how to create an XML document in XMLQuire editor, including adding elements, attributes, and namespaces. It shows how to use XPath to query and return values from the XML, such as the author name, street address, and number of books in a list. The goal is to introduce foundational concepts needed before learning Oracle SOA.

1. Getting Started with Oracle SoA
BASIC CONCEPT OF ORACLE SOA Lab#1
Description:
BISP is committed to provide BEST learning material to the beginners and
advance learners. In the same series, we have prepared a complete end-to end
Hands-on Beginner’s Guide for Oracle SoA. The document focuses on basic
keywords, terminology and definitions one should know before starting Oracle
SoA. Join our professional training program and learn from experts.
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
www.bispsolutions.com www.bisptrainigs.com www.hyperionguru.com
Page 1

2. AGENDA -: Basic course required for SOA
1) XML
2) XPath
3) Xsd
4)WSDL
Xml: it is a basic transportation or communication medium through which we
transport data & structure the data.
Note: [ xml files are saved as .xml]
XPath: It is a technology for traversing xml documents & provide specific value or
collection of values.
Xsd: It is a schema definition file which define structure for xml document.
WSDL: The Web Services Description Language is an xml-based interface description
language that is used for describing the functionality offered by a web service.
A WSDL description of a web service (also referred to as a WSDL file) provides a
machine-readable description of how the service can be called, what parameters it
expects, and what data structures it returns. It thus serves a purpose that corresponds
roughly to that of a method signature in a programming language.
Step wise introduction to xml
• simple xml element
• complex xml element
• xml namespace
• xml prefix
Creating xml document in XMLQUIRE Editor:-
Step 1: Open xml editor , it look like as shown below :
www.bispsolutions.com www.bisptrainigs.com www.hyperionguru.com
Page 2

3. Here <?xml version="1.0" encoding="utf-8"?> indicted in red box known as "Xml
processing instruction" it means that we are using xml of version "1.0" & encoding
used here "utf-8" is for linux .
Note : encoding for windows is "windows-1525"
We are using xmlquire because it has inbuilt Xpath which is useful for traversing the
xml expressions .
Step2: Save your xml file on clicking icon on editor & then start writing xml
expressions. After saving xml file you can easily see it at the left pane of editor, I have
indicated it with red box for better understanding.
Now after saving file start writing xml expressions as shown below in figure:
• In xml there is root element which is the root of all element here Book is root element
www.bispsolutions.com www.bisptrainigs.com www.hyperionguru.com
Page 3

4. • Every element is of start type & end type example <Book></Book>.
• Here name, author, price all are simple elements of xml since they contains no other elements
between their
start type & end type .
• Book , Publisher & Address are complex element because they contains one or more than one
simple element.
xmlns:b="http://www.oracle.com/schema/Book"
it is known as xml name space ,it is used here as Book attribute & used for unique
identification of elements by the parser (run time engine which is reading xml &
traverse xml , BPEL does the job of parsing) across application or application server.
Step 3: in this step observe indicated lines shown in figure below :
1st & 2nd black lines indicates two different name spaces one for Book & other for Address
3rd & 4th green lines represents "prefixes" . Prefix is shortcut for xml name space & xml name
space is used for unique identity so every element must have namespace & so structure
transforms into bulky so instead using it repeatedly you can use prefix for ease & denoted here
in figure as a & b .
Step 4: In this step we have made few changes as discussed below:
www.bispsolutions.com www.bisptrainigs.com www.hyperionguru.com
Page 4

5. • we have added a new complex element "List_of_Books " & make both the name
namespaces as its attribute & assign Book with prefix b.
• Take new root element which contains whole structure here taken "Book_liab" as root element
Note: root element does not have prefix because name space is used one step below
root element.
Step 5: Click on icon in editor & another window of X Path will appear in
front
of editor
www.bispsolutions.com www.bisptrainigs.com www.hyperionguru.com
Page 5

6. Now objective is to check that whatever document we have written in xml is providing
right value or not . So some points are useful to get value through X Path these are :-
• 1st green line indicated that start your query with forward slash ( /) & then write root
element as shown in figure
• 2nd green line indicates b:List_Of_Books because it is just below the root element
• 3rd line represents Axes , Functions, Operations & expressions to carry out query according
to need.
Step 6:
• To find out author write full path of author on search box & hit on find button
shown extreme left corner in X path window or click on options displaying in left pane .
• Now red box indicating
1. Name as autor
2. Type as Element
3. Value as jahangeer
www.bispsolutions.com www.bisptrainigs.com www.hyperionguru.com
Page 6

7. Step 7: similarly we can find value of street by writing path in search box.
Note: forward slash means go one step down .
Remember: to search street value we have to start with root element. such as
Book_liab-->List_of_Books-->Books-->publisher-->Address-->street
In XPath it is /Book_liab/b:List_Of_Books/b:Book/b:publisher/a:Address/a:street
Step 8: In this step category & subcategory is also added as attributes shown below :
www.bispsolutions.com www.bisptrainigs.com www.hyperionguru.com
Page 7

8. Step 9: In this step we find value of attribute category when executed in XPath
www.bispsolutions.com www.bisptrainigs.com www.hyperionguru.com
Page 8

9. value as "software".
Note : attribute like category & subcategory are executed with forward slash preceded
with @ symbol.
Step 10: By using concat( ) function from icon we can join two
strings
which is shown in figure in result box :
1. Name as String
2. Value as jahangeerRS500
3. Type as value
www.bispsolutions.com www.bisptrainigs.com www.hyperionguru.com
Page 9

10. Step 11: Here one more book is added inside List_Of_Books & so total number of
books we find by using another function count( ) .
Step 12: Use count() function in Xpath search box & get result as :
www.bispsolutions.com www.bisptrainigs.com www.hyperionguru.com
Page 10

11. 1. Name as Number
2. Value as 2
3. Type as Value
& now successfully got number of books we have in List_of_Books .
Note: If we want to get value after full execution of xml we can use // in Xpath search
before root element.
www.bispsolutions.com www.bisptrainigs.com www.hyperionguru.com
Page 11