# tExtractPositionalFields properties for Apache Spark Streaming These properties are used to configure tExtractPositionalFields running in the Spark Streaming Job framework. The Spark Streaming tExtractPositionalFields component belongs to the Processing family. This component is available in Talend Real Time Big Data Platform and Talend Data Fabric. ## Basic settings | Prev.Comp.Column list | Select an incoming field from the Field list to extract. | | --- | --- | | Customize | Select this check box to customize the data format of the positional
file and define the table columns:


Column: Select the column you want to
customize.


Size: Enter the column size.


Padding char: Type in between inverted
commas the padding character used, in order for it to be removed from
the field. A space by default.


Alignment: Select the appropriate
alignment parameter. | | Pattern | Enter the pattern to use as basis for the extraction.

A pattern is length values separated by commas, interpreted as a
string between quotes. Make sure the values entered in this fields are
consistent with the schema defined. | | Die on error | Clear the check box to skip any rows on error and complete the process for
error-free rows. When errors are skipped, you can collect the rows on error using a Row > Reject link. | | Schema and Edit
Schema | A schema is a row description. It defines the number of fields
(columns) to be processed and passed on to the next component. When you create a Spark
Job, avoid the reserved word line when naming the
fields.

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



Click Sync
columns to retrieve the schema from the previous component connected in the
Job. | | | Built-In: You create and store the schema locally for this component
only. | | | Repository: You have already created the schema and stored it in the
Repository. You can reuse it in various projects and Job designs. | ## Advanced settings | Advanced separator (for number) | Select this check box to change the separator used for numbers. By default, the thousands separator is a comma (*,*) and the decimal separator is a period (*.*). | | --- | --- | | Trim Column | Select this check box to remove leading and trailing whitespace from
all columns. | | Check each row structure against
schema | Select this check box to check whether the total number of columns
in each row is consistent with the schema. If not consistent, an
error message will be displayed on the console. | ## Usage | **Usage rule** | This component is used as an intermediate step.

This component, along with the Spark Streaming component Palette it belongs to, appears
only when you are creating a Spark Streaming Job.

Note that in this documentation, unless otherwise explicitly stated, a scenario presents
only Standard Jobs, that is to say traditional
Talend
data
integration Jobs. | | --- | --- | | Spark Connection | In the Spark
Configuration tab in the Run
view, define the connection to a given Spark cluster for the whole Job. In
addition, since the Job expects its dependent jar files for execution, you must
specify the directory in the file system to which these jar files are
transferred so that Spark can access these files:



This connection is effective on a per-Job basis. |