tMDMRollback – Docs for ESB 5.x

Component family

Talend MDM

Function

tMDMRollback returns a database to its original
state before a Job was run, instead of committing any changes.

Purpose

This component is used as part of an overall MDM transaction to roll back any
changes made in the database rather than definitively committing them, for example
to prevent partial commits if an error occurs.

Basic settings

Component List

Close Connection

Select this check box to close the session for this connection to the MDM Server
after rolling back the changes. Note that even if you do not select this check box,
the connection can still not be used in a subsequent subjob unless the Autocommit
mode has been enabled.

Advanced settings

tStatCatcher Statistics

Select this check box to gather the processing metadata at the Job level as well
as at each component level.

Global Variables

ERROR_MESSAGE: the error message generated by the
component when an error occurs. This is an After variable and it returns a string. This
variable functions only if the Die on error check box is
cleared, if the component has this check box.

A Flow variable functions during the execution of a component while an After variable
functions after the execution of the component.

To fill up a field or expression with a variable, press Ctrl +
Space to access the variable list and choose the variable to use from it.

For further information about variables, see Talend Studio
User Guide.

Usage

This component is to be used along with the tMDMConnection, tMDMCommit, tMDMSP, tMDMViewSearch,
tMDMInput, tMDMDelete, tMDMRouteRecord,
tMDMOutput, and tMDMClose components.