OIC, Oracle SOA, OSB, Weblogic

When you are first starting with OSB it can be a little tricky to determine when to use a Route, Service Callout or a Publish node.  All three can be used to call either a Business service or a local Proxy service.  You can use the following lists to determine which will best fit your needs. Route Last node in request processing.  It can be thought of as a bridge between request pipeline processing and the response pipeline processing. You can only execute one route in your Proxy Service. Can only be created in a route node. OSB will wait for the Route call to finish before continuing to process. If you are calling a Business service  and  you specify  Best Effort  for QoS (Quality of Service), then OSB will release the thread it is holding while the business service executes. If you are calling a Business service  and  you specify  Exactly Once  or  At Least Once  for QoS, then OSB will hold onto the thread while the business service executes. If you are calling a l

If you are placing a catch block in your service invocation and trying to catch a system remotefault/bindingfault  , you can have following issues : 1. First , your faultVariable is not having any child element like code,summary and detail which are part of the RuntimeFault.  2.  Second, when you try to compile the composite, you get below error: Error(76): WSDL messageType "{http://schemas.oracle.com/bpel/extension}bindingFault" of variable "" is not defined in any of the WSDL files  Reason for above issues and solution: The reason why you get this is because when you select the system->RuntimeFault as type of fault in your fault handler, JDeveloper copies a wsdl named RuntimeFault.wsdl  from your <JDEVELOPER_HOME%\\integration\seed\soa\shared\bpel directory to your project and this wsdl contains following msg : <?xml version="1.0" encoding="UTF-8"?> <definitions name="RuntimeFault"              targetNames

What is singleton Property in SOA?       In the clustered environment when the processing of the message should happen via only one SOA managed server, then the property singleton needs to be defined at the adapter level.          What is a pick activity? Can I have a pick activity with no onMessage branch?         Pick activity picks the messages from service (Source) which has multiple operations or the BPEL process needs to receive the messages from multiple source system. Pick activity should have at least on Message branch.       What is a flow activity? What is a flowN activity and how does it leverages the flow activity? F   Flow activity is used, when parallel execution of the flow is needed and to use this property “non blocking invoke should be set as true “at the partner link level and no. of execution of parallel flow is defined and static. Where as in Flown the no. of execution of parallel flow is not static and it is determined d