tPigMap Standard properties
These properties are used to configure tPigMap running in the Standard Job framework.
The Standard tPigMap component belongs to the Big Data and the Processing families.
The component in this framework is available in all Talend products with Big Data and in Talend Data Fabric.
Basic settings
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Mapping links display as |
Auto: the default setting is curves links Curves: the mapping display as curves Lines: the mapping displays as straight lines. This last option allows to slightly enhance performance. |
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Map editor |
It allows you to define the tPigMap routing and transformation properties. |
Advanced settings
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tStatCatcher Statistics |
Select this check box to collect log data at the component level. |
Global Variables
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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
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Usage rule |
Possible uses are from a simple reorganization of fields to the most complex Jobs of data multiplexing or demultiplexing transformation, concatenation, inversion, filtering/splitting and more, in a Pig process. |
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Limitation |
The use of tPigMap supposes minimum Java and Pig Latin knowledge in order to fully exploit its functionalities. This component is a junction step, and for this reason cannot be a start nor end component in the Job. |