| Abstract WSDL | Concrete WSDL |
| ElementsMessagesPort type Operation | Abstract + Binding/service end point URL |
Synchronous: Single port is called synchronous, it has (input ,output) , (Receive, reply) Asynchronous: Multiple ports is called asynchronous, it has (input, input), (receive, call-back) One way: single port and no response is called one-way , it has (input),(Receive) Sample WSDL: <? XML version = “1.0” encoding = “UTF-8”?> <Schema> <element name=”add request element” > <complex Type> <Sequence> <element name=”n1” Type = “int”/> <element name=”n2” Type = “int”/> </Sequence> </complex Type> </element> <element name=”add Response element” > <complex Type> <Sequence> <element name=”result” Type = “int”/> </Sequence> </complex Type> </element> </schema> <message name =”addition request message”> <part name =”payload” element =”Add request element”> </message> <message name =”addition response message”> <part name =”payload” element =”Add response element”> </message>
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Note: Synchronous and asynchronous same for here, after then Synchronous WSDL: <port type name =”Addition port type”> <operation name =”Add”> <input message =”addition request message”> <output message =”addition response message”> </operation> </port type> Asynchronous WSDL: <port type name =”Addition port type”> <operation name =”Add”> <input message =”addition request message”> </operation> </port type> <port type name =”Addition port type result”> <operation name =”result”> <input message =”addition response message”> </operation> </port type>
Learn more about Oracle SOA Interview Questions in this blog post.
Concrete WSDL contains:
Instruction pattern/templates/message exchange patterns(MEPS):
| synchronous | Asynchronous | One way |
|
Delay response | No response |
|
Contains multiple ports and defined only input message under operation. | Contains single port type and only input message inside operation |
|
BPEL process contains “receive and call back activities” | Only “receive” activity |
|
No time limit | No time |
|
State full process | No stateNote: There is no reply that’s why no state. |
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