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Chapter 4. Persistence Setups

4.1. Configuring Persistence for Business Central
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Red Hat JBoss BPM Suite is configured to use an example data source with Java Naming and Directory Interface (JNDI) name java:jboss/datasources/ExampleDS. The example data source is not suitable for production.

To change the data source:

  1. Prepare your database:

    1. Go to the Product Downloads on the Customer Portal and select Red Hat JBoss BPM Suite.
    2. Download Red Hat JBoss BPM Suite 6.3.0 Supplementary Tools.
    3. Unzip jboss-brms-bpmsuite-6.3-supplementary-tools/ddl-scripts, for example into /tmp/ddl.

    4. Import the DDL script for your database into the database you want to use, for example: 

      psql jbpm < /tmp/ddl/postgresql/postgresql-jbpm-schema.sql

  2. Install the Java Database Connectivity (JDBC) driver onto your application plaform. For example, to deploy a PostgreSQL JDBC driver:

    1. Copy your JDBC jar file into EAP_HOME/modules/org/postgres/main/.

    2. Create EAP_HOME/modules/org/postgres/main/module.xml with the following content: 

      <?xml version="1.0" ?>
<module xmlns="urn:jboss:module:1.1" name="org.postgres">
    <resources>
        <!-- Change the name of the JDBC driver to match yours. -->
        <resource-root path="postgresql-9.4-1202.jdbc42.jar"/>
    </resources>
    <dependencies>
        <module name="javax.api"/>
        <module name="javax.transaction.api"/>
    </dependencies>

      For further information about deploying JDBC drivers, see Install a JDBC Driver as a Core Module of the Red Hat JBoss Enterprise Application Platform Administration and Configuration Guide.

  3. Create a new data source:

    1. Open EAP_HOME/standalone/configuration/standalone.xml and locate <datasources>.

    2. Add your data source and the driver: 

      <!-- Default data source not suitable for production, now disabled. -->
<datasources>
    <datasource jndi-name="java:jboss/datasources/ExampleDS" pool-name="ExampleDS" enabled="false" use-java-context="true">
        <connection-url>jdbc:h2:mem:test;DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE</connection-url>
        <driver>h2</driver>
        <security>
            <user-name>sa</user-name>
            <password>sa</password>
        </security>
    </datasource>

    <!-- The new data source configuration. -->
    <datasource jndi-name="java:jboss/datasources/PostgresqlDS" pool-name="PostgresqlDS" enabled="true">
        <connection-url>jdbc:postgresql://localhost:5432/jbpm</connection-url>
        <driver>postgresql-9.4-1202.jdbc42.jar</driver>
        <security>
            <user-name>jbpm</user-name>
            <password>jbpm</password>
        </security>
    </datasource>

    <!-- The drivers section. -->
    <drivers>
        <driver name="h2" module="com.h2database.h2">
            <xa-datasource-class>org.h2.jdbcx.JdbcDataSource</xa-datasource-class>
        </driver>
        <!-- Register your new driver. -->
        <driver name="postgres" module="org.postgres">
            <driver-class>org.postgresql.Driver</driver-class>
        </driver>
    </drivers>
</datasources>

      For more information, see Example PostgreSQL Datasource of the Red Hat JBoss Enterprise Application Platform Administration and Configuration Guide.

  4. Register the data source in Business Central:

    1. Open EAP_HOME/standalone/deployments/business-central.war/WEB-INF/classes/META-INF/persistence.xml.

    2. Locate the <jta-data-source> tag and change it to the JNDI name of your data source, for example: 

      <jta-data-source>java:jboss/datasources/PostgresqlDS</jta-data-source>

    3. Locate the <properties> tag and change the hibernate.dialect property, for example: 

      <property name="hibernate.dialect" value="org.hibernate.dialect.PostgreSQLDialect" />
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