Product: OpenFusion Trading Service

Version: ALL

Description:

What are the different types of Traders?

Resolution:

The OMG's CORBA Object Trading Service specification defines six different types of traders, depending upon the functionality that they support.

The Trading Service specification defines five functional interfaces for a trader:

• Lookup - allows clients to query the trader for offers
• Register - allows services to be 'exported' (advertised) to the trader.
• Admin - allows the trader property to be configured.
• Link - supports the linking (federation) of traders.
• Proxy - supports the delayed evaluation of offers and can be used to encapsulate legacy systems.

The types of traders are determined by the supported interfaces, i.e.:

• Query type - supports Lookup
• Simple type - supports Lookup and Register
• Stand alone type - supports Lookup, Register and
• Admin Proxy type - supports Lookup, Register, Admin and
• Proxy Linked type - supports Lookup, Register, Admin and
• Link Full Service - supports Lookup, Register, Admin , Link and Proxy.

The OpenFusion Trading Service implementation supports all five functional interfaces, and is therefore a full-service trader.