1 / 9

COM/DCOM

COM/DCOM. Interoperation In-Memory Standard representation COM: v-table Java: VM Original: Object-based RPC, punts on Performance Management Platform independent(in-process,Netscape) Communicate. COM/DCOM. Source Code COM/DCOM :API(CoCreateInstance) CORBA: specification

loren
Télécharger la présentation

COM/DCOM

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. COM/DCOM • Interoperation • In-Memory • Standard representation • COM: v-table • Java: VM • Original: Object-based RPC, punts on • Performance • Management • Platform independent(in-process,Netscape) • Communicate

  2. COM/DCOM • Source Code • COM/DCOM :API(CoCreateInstance) • CORBA: specification • Java/RMI: Integrate,no explicit API • Type • IDL • COM: • CORBA • Java/RMI

  3. COM/DCOM • Integration • DCOM over Virtual Private Network • Internet as TCP/IP network • tunneling • DCOM over Internet • DCOM is secure protocol • Firewall

  4. COM/DCOM • Features • Transaction • In-Memory Database(IMDB) • Microsoft Messaging Queue(MSMQ) • MSDTC(Distributed Transaction Coordinator)

  5. COM/DCOM • Transaction • ACID • IMDB • precondition • advantage • disadvantage

  6. COM/DCOM • MSMQ • provide an asynchronous communication • mechanism • compare with mobile agent • integrate with MTS(commit, rollback) • MSDTC(XA-interface) • Resource Manager • Transaction Manager

  7. COM/DCOM • UUID(GUID) • Register to the system • Automatically • Manually

  8. CORBA/DCOM/SOAP

  9. SOAP

More Related