About communication method with integration server?

Question

can anybody explain clearly what difference between using proxy and adapters at runtime?
especially for adatpers,i am confused.
there is a the following explanation in online help.
Communication using adapters. In this case, you create interfaces for message exchange in the application system, or use existing interfaces.
does not adapter have proxy programe? if so,where is its implementation?

Answer 1

Hi,
Adapter and proxies both are used by the appication to communicate with the XI/PI.
Adapters: "To adapts the things", any appication(SAP, non-SAP) can communicate with XI using Adapters. what adpaters do? It will convert the source
message format to target message format. Example SAP send the Idoc but XI only understand XML message so no communication is possible till some one come in bewteen and traslate that Idoc to XML format..this is the task of adatpers.
Except Idoc and HTTP all adapters reside in the Java stack.
Proxies are also used for the same purpose but they directly communicate with the IS so they are always fasters.
There can be ABAP proxy or Java proxy(Client or Server Proxy). Example: if you have J2EE appication and that need to communicate with XI, for that no adapter is available...then you can write Client Java Proxy which can communicate with XI directly(same for Server proxy....where XI will call the J2EE application)
Proxies need to use if you are communicating with SAP systems.even Idoc and RFC adapters are available? Then it depends if Web Appication Server >= 6.20 then its always to good to use proxies(even you have an option for RFC or Idoc adapters).
Thanks & Regards,
Farooq Farooqui.
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