Infrastructure for Creating Support Routines for XA Routines

The interaction 3between the Dynamic Server transaction manager and an XA data source 3occurs through a set of XA-support purpose functions, such as xa_open( ), xa_close( ), xa_start( ), xa_end( ), xa_prepare( ), xa_commit( ), xa_rollback( ), xa_forget( ), xa_recover( ), 3and xa_complete( ). These 3UDRs contain XA data source information and operate for the global 3transaction ID, which is passed as a parameter to a UDR.

The support routines must exist in every database in which the 3application creates XA data source types and their instances. You 3should create these UDRs before creating XA-compliant data source 3types. For more information, see Creating User-Defined XA-Support Routines.