tPostgresqlRollback – Docs for ESB 5.x

Component family

Databases

Function

Cancel the transaction commit in the connected DB.

Purpose

Avoids to commit part of a transaction involuntarily.

Basic settings

Component list

Select the tPostgresqlConnection
component in the list if more than one connection are planned for
the current Job.

Close Connection

Clear this check box to continue to use the selected connection
once the component has performed its task.

Advanced settings

tStat
Catcher
Statistics

Select this check box to collect log data at the component
level.

Enable parallel execution

Select this check box to perform high-speed data processing, by treating multiple data flows
simultaneously. Note that this feature depends on the database or the application ability to
handle multiple inserts in parallel as well as the number of CPU affected. In the Number of parallel executions field, either:

Note that when parallel execution is enabled, it is not possible to use global variables to
retrieve return values in a subjob.

Dynamic settings

Click the [+] button to add a row in the table and fill
the Code field with a context variable to choose your
database connection dynamically from multiple connections planned in your Job. This feature
is useful when you need to access database tables having the same data structure but in
different databases, especially when you are working in an environment where you cannot
change your Job settings, for example, when your Job has to be deployed and executed
independent of Talend Studio.

Once a dynamic parameter is defined, the Component List
box in the Basic settings view becomes unusable.

For more information on Dynamic settings and context
variables, see Talend Studio User Guide.

Usage

This component is more commonly used with other tPostgresql*
components, especially with the tPostgresqlConnection and tPostgresqlCommit components.

Log4j

The activity of this component can be logged using the log4j feature. For more information on this feature, see Talend Studio User
Guide.

For more information on the log4j logging levels, see the Apache documentation at http://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/Level.html.

Limitation

n/a