System and method for updating service information for across-domain messaging in a transactional middleware machine environment

A system for supporting messaging in a transactional middleware machine environment, comprising:

• one or more microprocessors;
• a gateway server in a transaction domain, running on the one or more microprocessors, wherein the gateway server operates to
• provide a notification of an update in one or more services to one or more gateway servers in one or more remote transaction domains;
• receive an inquiry for said one or more services from a remote transaction domain;
• and
• send a response to a gateway server in the remote transaction domain, wherein the response contains information that allows a client in said remote transaction domain to invoke said one or more services.

A non-transitory machine readable storage medium having instructions stored thereon that when executed cause a system to perform the steps comprising:

• providing, via a gateway server in a transaction domain, a notification of an update in one or more services to one or more gateway servers in one or more remote transaction domains;
• receiving, via the gateway server, an inquiry for said one or more services from a remote transaction domain;
• and
• sending, via the gateway server, a response to a gateway server in the remote transaction domain, wherein the response contains information that allows a client in said remote transaction domain to invoke said one or more services.