tEXistXUpdate – Docs for ESB 5.x

Component family

Databases/eXist

Function

This component processes XML file records and updates the records
on the DB server.

Purpose

tEXistXUpdate processes XML file
records and updates the existing records on the DB server.

Basic settings

Use an existing connection/Component List

Select this check box and in the Component List click the
relevant connection component to reuse the connection details you already defined.

URI

URI of the database you want to connect to.

Collection

Enter the path to the collection and file of interest on the
database server.

Driver

This field is automatically populated with the standard
driver.

Username and
Password

DB server authentication information.

To enter the password, click the […] button next to the
password field, and then in the pop-up dialog box enter the password between double quotes
and click OK to save the settings.

Update File

Browse to the local file in the local directory to be used to
update the records on the database.

Advanced settings

tStatCatcher Statistics

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

Global Variables

NB_FILE: the number of files processed. This is an After
variable and it returns an integer.

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 typically used as a single component Job but can
also be used as part of a more complex Job.

eXist-db is an open source database management system built using
XML technology. It stores XML data according to the XML data model
and features efficient, index-based XQuery processing.

For further information about XQuery, see XQuery.

For further information about the XQuery update extension, see

XQuery update extension.

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

Due to license incompatibility, one or more JARs required to use this component are not
provided. You can install the missing JARs for this particular component by clicking the
Install button on the Component tab view. You can also find out and add all missing JARs easily on
the Modules tab in the Integration perspective
of your studio. For details, see https://help.talend.com/display/KB/How+to+install+external+modules+in+the+Talend+products
or the section describing how to configure the Studio in the Talend Installation and Upgrade
Guide.