Getting started-with-oracle-so a-ii

Getting Started with Oracle SoA
BASIC CONCEPT OF ORACLE SOA Lab#2
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

Objective : Basic course required for SOA
INTRODUCTION TO XSD (Xml Schema Definition)
• What is XSD ?
• Structure of XSD
• Target namespace Attribute of xsd: schema
• xmlns registration
• xsd element type
• xsd complex type
• Reusing Complex Type objects
XSD :
" The XML Schema Definition (XSD) is a reference library that provides an API for use with
any code that examines, creates or modifies W3C XML Schema (standalone or as part of
other artifacts, such as XForms or WSDL documents).
XSD is a library that provides an API for manipulating the components of an XML Schema
as described by the W3C XML Schema specifications, as well as an API for manipulating
the DOM-accessible representation of XML Schema as a series of XML documents, and for
keeping these representations in agreement as schemas are modified."
To create a New Project on Oracle JDeveloper 11g step wise
procedure is mentioned
below :
[Step 1] : Start your graphical desktop window & it will appear as
shown in figure
Page 2

Step2 : Double click on oracle Jdeveloper icon .
Step 3: After double click Select Role window will appear choose
Default Role & it will
enable all technologies .
Click OK button .
Step 4: Now successfully we have entered into Oracle JDeveloper
page .
Click on this new button icon which is shown in left corner of
page & a New Gallery
window will appear on same page.
Page 3

Click on :
Current Project Technologies ---> Applications --->SOA Application
---> click OK.
Step 5: Select Application Name & fill on blank . I have taken
SOAApplicaton as
Application Name & click Next Tab.
Page 4

Step 6:Now it will prompt for Project Name select project name as
your own choice
ex- Project1.
Select ADF Business Components ---> SOA---> Next .
Page 5

Note: There are various Application Development Framework (ADF)
to develop your
application so choose as per need.
Step 7: To configure SOA Setting select Empty Composite ---> click
Finish
so successfully created Project1 as new project .
Page 6

==> Inside red box observe SOAApplication as Application Name &
Project1 under Project
is created.
TO CREATE .XSD FILE STEPWISE PROCEDURE IS
MENTIONED BELOW
So far discussion was to create new project now under project1 start
to create new Book type .xsd file :
Step1: Right click on xsd ---> New .
Page 7

Step 2: Click All Technologies ---> XML --->XML Schema ---> OK
Note: We are going to create XML schema in .xsd file .
Page 8

Step 3: Now Enter details of your new file ex- Book.xsd or Book
Schema.xsd & click OK.
Here point to consider is 1) Target Namespace 2) Prefix
Target Namespace : This is used for unique identification of each
element in XML
by parser.
Prefix: Prefix is shortcut of Namespace . Take bobj as prefix for
BookType xsd file,
here 'b' represent Book type & 'obj' represents Object .
Step 4: On left Pane observe BookSchema.xsd is created under xsd
.
On right side of left pane is a predefined XSD schema.
• 1st circle represents start of schema & 2nd circle end of schema .
In xsd:schema xsd is used here as prefix which is generated by w3
organization & it is
a shortcut of namespace
xmlns:xsd="http://www.w3.org/2001/XMLSchema".
Page 9

So in this schema we observe Target namespace now we can see
the structure in which they have taken "exampleElement" as name
of element.
• At the bottom inside green box there are three options
1. Design mode: In design mode we can see what we have
designed .
2. Source mode: In source mode we create schema of xml in
xsd as shown in above figure.
Page 10

3. History: We can see the history of schema created.
Step 5: Design Bookschema.xsd structure inside parent schema.
• xmlns:xsd="http//:www.w3.org/2001/XMLSchema" is namespace
which describes the schema of xml by w3 organization & provide
standard prefix xsd to all elements inside schema.
• xmlns:bobj="http//:www.oracle.com/schema/Book" this is
registration of target namespace.
• ListOfBooks is a XSD element & its type is ListOfBookType
• ListOfBookType is a complextype element
• Complextype xsd are those in which one or more than simple
elements are nested.so in this example there are three complex
types .
• So start from first complex type i.e Book Type as shown in figure
with purple box.
• <xsd:sequence> means that all simple elements inside complex
type arranged in a sequence .
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• So this BookType contains name ,author,price inside it with their
types. Type plays important role in xsd it gives meaning to the
element name .
1. name is "xsd: string" type
2. author is "xsd: string" type
3. Price is "xsd:decimal " type
• Similarly Subject Type contains three elements in well defined
sequence
Here we have taken type as "bobj:BookType" because each subject
contains BookType structure[name, author,price] & hence there are
three book inside subjectType . In design mode it looks as shown
below
Page 12

• Similarly for ListOfBooktype which contains "Book" as its element
& type of book is
"bobj:SubjectType"
So Book comes under list of books type & subject type under
book
Design mode:
Page 13

Finally ListOfBooks element contain ListOfBookType.
Step 6: In this step we notice following points:
1. what is minOccurs , maxoccurs, nillable ?
2. what is annotation ?
So let us see the structure in source mode :
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• minoccurs & maxoccurs
means how many number of times this name element occurs.
1. Example
/>
1<author occurs<1 meaning author will occur once only.
2. Example
/>
means minimum occurrence of Book is one & maximum it can
occur unbounded
i.e infinite times.
Page 15

• NILLABLE
These are of two types:
1) TRUE 2) FALSE
nillable="true" means that value of element should be nil.
nillable="false" means that value of element should not be nil i.e
element must have value.
• ANNOTATION
annotation are of two types 1) Documentation 2) appinfo .
As shown below in source mode
Page 16

1) Documentation : In computer industry , documentation is the
information provided to
a customer or other user about a product or the process of
preparing it.
2) Appinfo : The appinfo element specifies information to be used by
the application.
the element must go within an annotation element.
Let us see how Design looks :
Page 17

It represents minoccurs="1" & max occur="unbounded" .
Page 18

Page 19

Getting started-with-oracle-so a-ii

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