# tExtractXMLField properties for Apache Spark Batch

These properties are used to configure tExtractXMLField running in the Spark Batch Job framework.

The Spark Batch tExtractXMLField component belongs to the XML family.

The component in this framework is available in all subscription-based Talend products with Big Data and Talend Data Fabric.

## Basic settings

| Property type | Either Built-In or Repository.<br><br>Click Edit<br>schema to make changes to the schema. If the current schema is of the Repository type, three options are available:<br><br><ul> <li> <p> <span>View schema</span>: choose this                option to view the schema only.</p> </li> <li> <p> <span>Change to built-in property</span>:                choose this option to change the schema to <span>Built-in</span> for local changes.</p> </li> <li> <p> <span>Update repository connection</span>:                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 <span>No</span> upon completion and choose this schema metadata                again in the <span>Repository Content</span>                window.</p> </li> </ul> |
| --- | --- |
|  | Built-In: No property data stored centrally. |
|  | Repository: Select the repository file where the<br>properties are stored.<br><br>When this file is selected, the fields that<br>follow are pre-filled in using fetched data. |
| Schema type and Edit<br>Schema | A schema is a row description. It defines the number of fields<br>(columns) to be processed and passed on to the next component. When you create a Spark<br>Job, avoid the reserved word line when naming the<br>fields. |
|  | Built-In: You create and store the schema locally for this component<br>only. |
|  | Repository: You have already created the schema and stored it in the<br>Repository. You can reuse it in various projects and Job designs. |
| XML field | Name of the XML field to be processed.<br><br>Related topic: see *Talend Studio User<br>Guide*. |
| Loop XPath query | Node of the XML tree, which the loop is based on. |
| Mapping | Column: reflects the schema as<br>defined by the Schema type field.<br><br><br>XPath Query: Enter the fields to be<br>extracted from the structured input.<br><br><br>Get nodes: Select this check box to<br>recuperate the XML content of all current nodes specified in the<br>Xpath query list or select the<br>check box next to specific XML nodes to recuperate only the content<br>of the selected nodes. |
| Die on error | Select the check box to stop the execution of the Job when an error<br>occurs. |

## Advanced settings

| Ignore the namespaces | Select this check box to ignore namespaces when reading and<br>extracting the XML data. |
| --- | --- |

## Usage

| **Usage rule** | This component is used as an intermediate step.<br><br>This component, along with the Spark Batch component Palette it belongs to,<br>appears only when you are creating a Spark Batch Job.<br><br>Note that in this documentation, unless otherwise explicitly stated, a<br>scenario presents only Standard Jobs, that is to<br>say traditional<br>Talend<br>data integration Jobs. |
| --- | --- |
| Spark Connection | In the Spark<br>Configuration tab in the Run<br>view, define the connection to a given Spark cluster for the whole Job. In<br>addition, since the Job expects its dependent jar files for execution, you must<br>specify the directory in the file system to which these jar files are<br>transferred so that Spark can access these files:<br><br><ul> <li> <div> <span>Yarn mode</span> (Yarn client or Yarn cluster):<ul> <li> <p>When using Google Dataproc, specify a bucket in the                                            <span>Google Storage staging bucket</span>                                        field in the <span>Spark configuration</span>                                        tab.</p> </li> <li> <p>When using HDInsight, specify the blob to be used for Job                                        deployment in the <span>Windows Azure Storage                                            configuration</span> area in the <span>Spark                                            configuration</span> tab.</p> </li> <li>When using Altus, specify the S3 bucket or the Azure                                    Data Lake Storage for Job deployment in the <span>Spark                                        configuration</span> tab.</li> <li>When using Qubole, add a                                        <span>tS3Configuration</span> to your Job to write                                    your actual business data in the S3 system with Qubole. Without                                        <span>tS3Configuration</span>, this business data is                                    written in the Qubole HDFS system and destroyed once you shut                                    down your cluster.</li> <li> <p>When using on-premise distributions, use the configuration component                                        corresponding to the file system your cluster is using.                                        Typically, this system is HDFS and so use <span></span>.</p> </li> </ul> </div> </li> <li> <p> <span>Standalone mode</span>: use the                            configuration component corresponding to the file system your cluster is                            using, such as <span>tHDFSConfiguration</span> or <span>tS3Configuration</span>.</p> <p>If you are using Databricks without any configuration component present                            in your Job, your business data is written directly in DBFS (Databricks                            Filesystem).</p> </li> </ul><br><br>This connection is effective on a per-Job basis. |