Procedure 6.2. Install a JDBC Driver as a Core Module

1. Create a file path structure under the EAP_HOME/modules/ directory. For example, for a MySQL JDBC driver, create a directory structure as follows: EAP_HOME/modules/com/mysql/main/.
2. Copy the JDBC driver JAR into the main/ subdirectory.
3. In the main/ subdirectory, create a module.xml file similar to the example in Section 7.1.1, “Modules”. The module XSD is defined in the EAP_HOME/docs/schema/module-1_2.xsd file.
4. Start the Server.
5. Start the Management CLI.
6. Run the CLI command to add the JDBC driver module to the server configuration.
   The command you choose depends on the number of classes listed in the /META-INF/services/java.sql.Driver file located in the JDBC driver JAR. For example, the /META-INF/services/java.sql.Driver file in the MySQL 5.1.20 JDBC JAR lists two classes:

   • com.mysql.jdbc.Driver
   • com.mysql.fabric.jdbc.FabricMySQLDriver

   When there is more than one entry, you must also specify the name of the driver class. Failure to do so results in an error similar to the following:

   JBAS014749: Operation handler failed: Service jboss.jdbc-driver.mysql is already registered

   • Run the CLI command for JDBC JARs containing one class entry.

     /subsystem=datasources/jdbc-driver=DRIVER_NAME:add(driver-name=DRIVER_NAME,driver-module-name=MODULE_NAME,driver-xa-datasource-class-name=XA_DATASOURCE_CLASS_NAME)

     Example 6.1. Example CLI Command for Standalone Mode for JDBC JARs with one driver class

     /subsystem=datasources/jdbc-driver=mysql:add(driver-name=mysql,driver-module-name=com.mysql,driver-xa-datasource-class-name=com.mysql.jdbc.jdbc2.optional.MysqlXADataSource)

     Example 6.2. Example CLI Command for Domain Mode for JDBC JARs with one driver class

     /profile=ha/subsystem=datasources/jdbc-driver=mysql:add(driver-name=mysql,driver-module-name=com.mysql,driver-xa-datasource-class-name=com.mysql.jdbc.jdbc2.optional.MysqlXADataSource)

   • Run the CLI command for JDBC JARs containing multiple class entries.

     /subsystem=datasources/jdbc-driver=DRIVER_NAME:add(driver-name=DRIVER_NAME,driver-module-name=MODULE_NAME,driver-xa-datasource-class-name=XA_DATASOURCE_CLASS_NAME, driver-class-name=DRIVER_CLASS_NAME)

     Example 6.3. Example CLI Command for Standalone Mode for JDBC JARs with multiple driver class entries

     /subsystem=datasources/jdbc-driver=mysql:add(driver-name=mysql,driver-module-name=com.mysql,driver-xa-datasource-class-name=com.mysql.jdbc.jdbc2.optional.MysqlXADataSource, driver-class-name=com.mysql.jdbc.Driver)

     Example 6.4. Example CLI Command for Domain Mode for JDBC JARs with multiple driver class entries

     /profile=ha/subsystem=datasources/jdbc-driver=mysql:add(driver-name=mysql,driver-module-name=com.mysql,driver-xa-datasource-class-name=com.mysql.jdbc.jdbc2.optional.MysqlXADataSource, driver-class-name=com.mysql.jdbc.Driver)