tMDMReceive 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

Talend MDM

 

Function

tMDMReceive receives an MDM record in XML from MDM triggers or MDM processes.

Purpose

This component decodes a context parameter holding MDM XML data and transforms it into a flat schema.

Basic Settings

Property Type

Either Built in or Repository.

Since version 5.6, both the Built-In mode and the Repository mode are available in any of the Talend solutions.

 

 

Built-in: No property data stored centrally.

 

 

Repository: Select the repository file where properties are stored. The fields that follow are completed automatically using the fetched data.

 

Schema and Edit Schema

A schema is a row description, it defines the number of fields that will be processed and passed on to the next component. The schema is either built-in or remote in the Repository.

Click Edit schema to make changes to the schema. If the current schema is of the Repository type, three options are available:

  • View schema: choose this option to view the schema only.

  • Change to built-in property: choose this option to change the schema to Built-in for local changes.

  • Update repository connection: choose this option to change the schema stored in the repository and decide whether to propagate the changes to all the Jobs upon completion. If you just want to propagate the changes to the current Job, you can select No upon completion and choose this schema metadata again in the [Repository Content] window.

 

 

Built-in: The schema will be created and stored for this component only. Related Topic: see Talend Studio User Guide.

 

 

Repository: The schema already exists and is stored in the repository. You can reuse it in various projects and jobs. Related Topic: see Talend Studio User Guide.

 

XML Record

Enter the context parameter allowing to retrieve the last changes made to the MDM server. For more information about creating and using a context parameter, see Talend Studio User Guide.

 

XPath Prefix

If required, select from the list the looping xpath expression which is a concatenation of the prefix + looping xpath.

/item: select this xpath prefix when the component receives the record from a process because processes encapsulate the record within an item element only.

/exchange/item: select this xpath prefix when the component receives the record from a trigger because triggers encapsulate the record within an item element which is within an exchange element.

 

Loop XPath query

Set the XML structure node on which the loop is based.

 

Mapping

Column: reflects the schema as defined in the Edit schema editor.

XPath query: Type in the name of the fields to extract from the input XML structure.

Get Nodes: Select this check box to retrieve the XML node together with the data.

 

Limit

Maximum number of rows to be processed. If Limit = 0, no row is read or processed.

 

Die on error

This check box is selected by default. Clear the check box to skip the row on error and complete the process for error-free rows. If needed, you can retrieve the rows on error via a Row > Reject link.

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.

NB_LINE: the number of rows processed. This is an After variable and it returns an integer.

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

Use this component as a start component. It needs an output flow.

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.