# tNeo4jInput Availability-note[Deprecated](https://help.talend.com/r/en-US/Cloud/labels-on-talend-help-center/availability-deprecated) This content is deprecated. Information noteImportant: The Neo4j components are deprecated from the 8.0.1-R2022-11 Talend monthly patch and removed from 8.0.1-R2024-12 onwards. Use Neo4jv4 components instead. Reads data from Neo4j and sends data in the output Talend flow. tNeo4jInput reads data from Neo4j based on Cypher query allowing any further transformation or processing of the data in the rest of the Job. This component is not shipped with your Talend Studio by default. You need to install it using the Feature Manager. For more information, see [Installing features using the Feature Manager](https://help.qlik.com/talend/r/en-US/8.0/studio-user-guide/install-features-to-talend-studio). ## tNeo4jInput Standard properties Information noteImportant: The Neo4j components are deprecated from the 8.0.1-R2022-11 Talend monthly patch and removed from 8.0.1-R2024-12 onwards. Use Neo4jv4 components instead. These properties are used to configure tNeo4jInput running in the Standard Job framework. The Standard tNeo4jInput component belongs to the Big Data and the Databases NoSQL families. The component in this framework is available in all Talend products with Big Data and in Talend Data Fabric. ## Basic settings | Properties | Description | | --- | --- | | Use an existing connection | Select this check box and in the Component
List drop-down list, select the desired connection component to
reuse the connection details you already defined. | | DB version | Select the Neo4j version you are using.

When you are using Neo4j version 3.2.X, this component works
in the remote mode only. Therefore, if you want to reuse a connection to
Neo4j V3.2.X from tNeo4jConnection, ensure that you
have selected the Remote server check box and
properly configured the connection.

Do
not use a 2.X.X version and a 3.X.X version in the same Job. Otherwise,
class conflict issues occur.

Neo4j version 2.X.X is compatible only with Java 7 or higher but it offers
support of advanced features such as node labels.

This list is not shown if the Use an
existing connection check box is selected.

Upon selecting a database version, you will be prompted to
install the corresponding database driver JAR files if not yet installed. For details, see [Installing external modules](https://help.qlik.com/talend/r/en-US/8.0/studio-user-guide/installing-external-modules). | | Shutdown after
job | Select this check box to shutdown the Neo4j database connection when no more
operations on Neo4j are going to be performed after the current
component.

Alternatively, you can use tNeo4jClose to shutdown the
database.

This avoids errors such as "Id file not properly shutdown" at next execution
of Jobs involving Neo4j.

This check box is available only if the Use an existing
connection check box is not selected. | | Remote server | Select this check box if you use a Neo4j remote server, and specify the root URL in the Server URL field.



This check box appears only if you do not select the Use an existing connection check box and you are not using Neo4j V3.2.X. With V3.2.X, this component supports the remote mode only. | | Database path | If you use Neo4j in embedded mode, specify the path of
data file.

This field appears only if you do not select the
Use an existing connection
check box or the Remote server
check box. | | 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:

| | Query | Enter your Cypher query in double quotes, with return
parameters matching the mapping table. | | Mapping | Complete this table to specify the column or columns to
be extracted and the corresponding column family or families. The
Column fields of this table
are automatically filled once you have defined the schema; fill the
Return parameter fields with
return parameters to map the node properties in the Cypher query with
the schema columns.

Be sure to enclose your return parameters in double
quotes. | ## Advanced settings | Properties | Description | | --- | --- | | tStatCatcher Statistics | Select this check box to gather the Job processing metadata at the
Job level as well as at each component level. | ## Global Variables | Variables | Description | | --- | --- | | Global Variables | NB\_LINE: the number
of rows read by an input component or transferred to an output component. 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 checkbox is
cleared, if the component has this checkbox.

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 more information about variables, see [Using contexts and variables](https://help.qlik.com/talend/r/en-US/8.0/studio-user-guide/contexts-and-variables). | ## Usage | Usage guidance | Description | | --- | --- | | **Usage rule** | This component always needs an output
link. | | Limitation | n/a |