• It is a reusable concept.
• Invoke using for

1. call concrete WSDL
2. call adapters

• File adapters
• DB adapters
• FTP adapters
• JMS adapters
• Oracle BAM adapters
• Oracle Application adapters
• SAP / TIBCO adapters(3^rd party adapters)

For – each:

• Read file/ records one by one based on polling frequency
• Root node  right click Add XSL node  for – each

File Read/Poll:

Interview Question:

whenever you take an adapter each adapter creates

1. .jca (java connecting architecture)
2. .WSDL

File Adapters:

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File poll/read to file write: (empty BPEL process)

File poll                       These 3 operations we are taking “empty ”BPEL process

DB poll

JMS consume

Note:

Empty BPEL process “Receive activity”

Create instance -> only for input receive activity.

file read:

• polling frequency
• XSD [Native format]
• input file path(physical)
• Delete files after successfully retrieval

File write:

• Sample XSD(which format display output file)
• Outgoing files path/logical name
• File naming conversion

Assign:

Input file  invoke input

Synchronous Read:

Only once it read in between process.

• In between process means -> Between receive and reply activities
• It will poll only one file(It contain multiple records)

Syncredd- fle write:

Assign:

Invoke input variable

Transform:

Invoke1  - invoke2

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Case1:

Static file name input:

Synchronous read:

6 -8 File name(sample.txt) (or)*.txt

Case2:

Dynamic file name input:

Synchronous read:

6 – 8  file name (dummy file name) wxyz.txt

Invoke 1:

Double click properties

Testing (EM)

Input: any string data .txt

Invoke 2:

Double click properties

Testing (EM)

Input:sample.txt

Note:

*.*

*  It takes any name /file

.   .txt, .xml,.doc

*  Any extension .xml, .doc, .txt, .xsd

For an Indepth knowledge on Oracle SOA click on:

• Oracle service bus in SOA
• Oracle SOA Business rule engine
• Java messaging service in Oracle SOA 11g
• Oracle 11g installation step by step process
• How to work with FTP(File transfer protocol) in Oracle SOA