Since eXo JCR 1.11, you can add two new params:

<value-param>

  <name>repository</name>

  <description>The name of repository where organization storage will be created</description>

  <value>db1</value>

</value-param>

<value-param>

  <name>storage-path</name>

  <description>The relative path where organization storage will be created</description>

  <value>/exo:organization</value>

</value-param>

In which:

Register JCR Organization service namespace and nodetypes via the RepositoryService plugins:

<component>

<key>org.exoplatform.services.jcr.RepositoryService</key>

<type>org.exoplatform.services.jcr.impl.RepositoryServiceImpl</type>

<component-plugins>

  <component-plugin>

    <name>add.namespaces</name>

    <set-method>addPlugin</set-method>

    <type>org.exoplatform.services.jcr.impl.AddNamespacesPlugin</type>

    <init-params>

      <properties-param>

        <name>namespaces</name>

        <property name="jos" value="http://www.exoplatform.com/jcr-services/organization-service/1.0/"/>

      </properties-param>

    </init-params>

  </component-plugin>

  <component-plugin>

    <name>add.nodeType</name>

    <set-method>addPlugin</set-method>

    <type>org.exoplatform.services.jcr.impl.AddNodeTypePlugin</type>

    <init-params>

      <values-param>

        <name>autoCreatedInNewRepository</name>

        <description>Node types configuration file</description>

        <value>jar:/conf/organization-nodetypes.xml</value>

      </values-param>

    </init-params>

  </component-plugin>

</component-plugins>

</component>