tContextDump properties - 6.1

Talend Components Reference Guide

EnrichVersion
6.1
EnrichProdName
Talend Big Data
Talend Big Data Platform
Talend Data Fabric
Talend Data Integration
Talend Data Management Platform
Talend Data Services Platform
Talend ESB
Talend MDM Platform
Talend Open Studio for Big Data
Talend Open Studio for Data Integration
Talend Open Studio for Data Quality
Talend Open Studio for ESB
Talend Open Studio for MDM
Talend Real-Time Big Data Platform
task
Data Governance
Data Quality and Preparation
Design and Development
EnrichPlatform
Talend Studio

Component family

Misc

 

Function

tContextDump dumps the context setup of the current Job to the subsequent component.

Purpose

tContextDump copies the context setup of the current Job to a flat file, a database table, etc., which can then be used by tContextLoad. Together with tContextLoad, this component makes it simple to apply the context setup of one Job to another.

Basic settings

Schema and Edit schema

A schema is a row description, it defines the fields that will be processed and passed on to the next component.

Note

The schema of tContextDump is read only and made up of two columns, Key and Value, corresponding to the parameter name and the parameter value of the Job context.

 

Hide Password

Select this check box to hide the value of context parameter password, namely displaying the value of context parameters whose Type is Password as *.

Global Variables

NB_LINE: the number of rows 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

As a start component, tContextDump dumps the context setup of the current Job to a file, a database table, etc.

Log4j

If you are using a subscription-based version of the Studio, 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