BPEL vs ESB

Question

Hi,
I want to raise this oft-repeated question and compile all the information in one thread.
The following are the points of comparison between the two that I can think of. Please verify and add to the list:
Use ESB: The payload has everything needed for transforming into the output format
Use ESB: Transformations and invocations are simple, say sequential
Use ESB: Stateless
Use ESB: Memory footprint - smaller for ESB for similar project (say developing a program that reads a DB and writes a file)..can somebody provide any figures
Use ESB: When you want to use DVM (BPEL does support DVMs via lookup-dvm, but its easier to use them in ESB)
Use BPEL:Orchestration required
Use BPEL:Long-lived or chatty application
Use BPEL:Need to send notification
Use BPEL:use business rules
Use BPEL:splitting joining of payloads - maybe this is possible in OSB
Use BPEL:content validation required based on business rules (and not necessarily xsd based)
Use BPEL: when participating apps support only HTTP/XML
Use BPEL: WSDL operations having multipart in messages
Use BPEL: Need to send binary attachments
Use BPEL: Monitoring using BAM etc. BPEL offers sensors
Use BPEL: Require control over error handling. BPEL also supports fault policies (not sure if ESB supports these too)

Answer 1

Use BPEL: WSDL operations having multipart in messages
For this recommendation what is the reasoning behind? And is there a way to get around it in ESB?
I am creating a pass through routing service for an already created client service that has multiple parts for the input and output. I have found a workaround in jdeveloper for being able to create the service by starting jdev using :Start jdeveloper.exe -J"-Dpreview_mode=true" which indicates that you cannot transform any of the values- which is fine for my services for now, but now I am finding that my routing service is only passing through the first part of the input message and I am getting the following error:
The message Returned from the call is returned as HTML as an Error 500-Internal Service Error
Error Message:
oracle.tip.esb.server.common.exceptions.BusinessEventRetriableException: An unhandled exception has been thrown in the ESB system. The exception reported is: "oracle.tip.esb.server.common.exceptions.BusinessEventRetriableException: An unhandled exception has been thrown in the ESB system. The exception reported is: "org.collaxa.thirdparty.apache.wsif.WSIFException: exception on JaxRpc invoke: serialization error: java.lang.ClassCastException: oracle.xml.parser.v2.XMLElement
I can see the payload that is being passed to the SOAP Service is only the first part of the message.
Any suggestions workarounds?