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In most situations it is technically possible to operate JS7 with newer versions of a DBMS or JDBC Driver if the version is actively supported by the DBMS vendor. Users frequently ask if JS7 is compatible with newer versions of a DBMS or JDBC Driver. It's the wrong question and your DBA should know the answer. Consider the following example for Oracle® that similarly applies to other DBMSs:

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• Hibernate configuration files are used in an XML format.
• JS7 - JOC Cockpit Installation On Premises
  • During installation the relevant hibernate configuration file is created and can be manually updated later on.
  • After installation of the JOC Cockpit the hibernate.cfg.xml Hibernate configuration file is available in
    • Unix
      • /var/sos-berlin.com/js7/joc/jetty_base/resources/joc
    • Windows
      • C:\ProgramData\sos-berlin.com\js7\joc\jetty_base\resources\joc
    • A different location for the configuration directory can be specified during installation of the JOC Cockpit.
• JS7 - JOC Cockpit Installation for Docker Containers
  • The JOC Cockpit ships preinstalled from a Docker® imagecontainer image.
  • It is therefore recommended that users:
    • download/copy one of the Hibernate configuration files listed below to:
      • /var/sos-berlin.com/js7/joc/jetty_base/resources/joc
    • adjust changes to reflect their database connection. For use with H2® you can use the below sample without changes.
• By default the Hikari Connection Pool is used.
• Consider that XML requires special characters to be used with escape characters, for example a password in the Hibernate configuration file that includes the character & is written as &. This applies to any values of XML elements and attributes in Hibernate configuration files.
  • Wrong: <property name="hibernate.connection.password">sec&ret</property>
  • Right: <property name="hibernate.connection.password">sec&amp;ret</property>

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• The example uses the MySQL® database server running with hostname mysqlsrv and port 3306.
• The example applies to use of a MySQL® JDBC Driver. Such drivers do not ship with JS7 as they are not available from open source compatible license. Users can download such drivers from the vendor's site.
• For use with MySQL® databases the MariaDB® JDBC Driver can be used that ships with JS7. The class name for this driver is org.mariadb.jdbc.Driver, see example for MariaDB®.

Hibernate Configuration for Oracle®

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Restart the JOC Cockpit to apply your changes.

Adding a JDBC Driver to a

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Container installation

When using the JOC Cockpit Docker® image container image then technically no installer is included that allows to specify the JDBC Driver to be used. Instead, images are preinstalled. In addition, there is no access to the container's file system before running the container which makes it impossible to add or replace a JDBC Driver before JOC Cockpit is started.

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• /var/sos-berlin.com/js7/joc/resources/joc/lib
• The /var/sos-berlin.com/js7/joc/resources/joc directory directory is typically mounted to a Docker volume a volume when running the container - for details see the JS7 - JOC Cockpit Installation for Docker Containers article. If the lib sub-directory does not exist then you can create it to store the JDBC Driver (*.jar) file.

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