How To Implement FLOW ACTIIVTY In Oracle SOA

Property: whenever executed parallel

Non blocking invoke à true (multithreading)

XSD:

i/p i1 ,i2 int

o/p result àint

create variables:

name (add) type(int)

name (mul) type(int)

Assign 1 :

Input invoke 1 i/p

Input invoke 2 i/p

Assign 2 :

Invoke 1 o/p add

Assign 3:

Invoke 2 o/p mul

Switch:

Case1: add> mul

Case2: mul > add

Assign 4:

Add result

Assign 5:

mul result

Create the property:

Double click on partner link (ex: PL _add)

Property click

Property name(non blocking invoke), property value (true) ok

Note:

Put property to 2 partner links

PL_add

PL _ mul

Non blocking invoke means send the message parallel.

Flow:

Loan approval process à when ever we know the flow of our project we work with “flow activity” .

i/p loan amount, duration

Flow – N :

When we are not sure of the flow of the project and don’t how many web services we need to invoke we will dynamically process at runtime by using “flow activity” .

DB –poll + synchronous _read to file _write:

Fault Handling Frame work:

2 ways to handle the faults

Process level :

Scope

Catch

Catch all

Throw

compensate

Policy level

Fault – indings.xml

Fault – polices .xml

Process level can be handle particular BPEL process only

Ex:

In process have multiple BPEL’s are then if we created throw, catch, catch all for ci validation BPEL then it applicable for that BPEL only not applicable for total process project.

Policy level can be handle entire application /project

Ex:

Process project all BPEL process handled.

2 types of faults

Business faults: it can be defined business conditions

Ex: amount> 50,000 , length cc number = 16 digits

Run time faults : it can handle by using catch, catch all blocks. It doesn’t have throw activity.

Business faults	Run time faults
Catch catch catch all catch all throw

XSD:

i/p Branch name string

branch string

loan amount int

o/p Result string

Switch:

Case1 :

Label :SBI

Expression: bank name = “SBI”

Case2:

Label :ICICI

Expression: bank name= “ICICI’

Throw 1 and catch1:

Name space URI = http://SBI BANK

Local part = SBI BANK

Throw 2 and catch2:

Name space URI = http://ICICI BANK

Local part = ICICI BANK

Throw 3

Name space URI = http://other BANKs

Local part = other BANKs

Process level :

Project customer details.

Policy level:

Fault – bindings.xml

Fault – policies.xml

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Write inside composite .xml:

Fault – policies.xml</property>

Fault – bindings.xml</property>

xml open source

</service>

Copy fault – bindings.xml , fault – polices.xml

Paste inside project(C://j developer/ my works/application ramesh 1/project)

fault –policies.xml -> contains (actions)

Ora – retry

Ora – terminate

Ora – human intervention

Ora –rethrow

Ora –reply

Ora –java

Main faults:

Remote fault

Mediator fault

Binding fault

Selection failure.

Ora – retry:

Retry interval failure action

Retry count

Retry failure action

Ora – human intervention:

Some one has come and do something

Ora –java:

Send the mail to admin /client(java code)

Ora –rethrow:

Throw back policy level to process level

Ora – terminate:

Immediately stop the process.

Ora –reply:

Starts again ora retry

Example for above all (remote fault)

PL:

Shut down

Retired

Undeploy

Server shutdown

Mediator faults:

Routing rules

Transformation

XSD validation

Filter condition

Binding fault:

WSDL miss match

Ault – policies .xml:

</conditions>

</fault name>

</conditions>

</fault name>

</conditions>

</fault name>

</conditions>

<retry>

</retry>

</Action>

</Actions>

For Indepth knowledge on Oracle SOA, click on below

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How to implement FLOW ACTIIVTY in Oracle SOA