tNeo4jConnection – Docs for ESB 5.x

Component family

Big Data / Neo4j

Function

In embedded mode the tNeo4jConnection start the database, and check the
server availability in REST mode.

Purpose

tNeo4jConnection allows you to
define a connection to a Neo4j database to be reuse by other Neo4j
components.

Basic settings

DB version

Select the Neo4j version you are using, between Neo4J 1.X.X and Neo4J 2.X.X.

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

Upon selecting a DB version, you will be prompted to install the corresponding database
driver JAR files if not yet installed. For more information on installing third-party
modules, see the Talend Installation and Upgrade Guide.

Use a remote server

Select this check box if you use a Neo4j REST server.

Database path

If you use Neo4j in embedded mode, specify the path of data
file.

Server URL

If you use Neo4j in REST mode, specify the root URL.

Read only

Select this check box if you want to use the embedded database in
read only mode. It’s useful if an application is already dedicated
with the database.

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.