blueprint with two instances of DbSelect

gistfile1.xml

<blueprint xmlns="http://www.osgi.org/xmlns/blueprint/v1.0.0" default-activation="eager">

    <command-bundle xmlns="http://karaf.apache.org/xmlns/shell/v1.1.0">
        <command name="db/query">
            <action class="net.lr.tutorial.karaf.db.command.QueryCommand">
                <property name="dbAccess" ref="dbAccess" />
            </action>
        </command>
        <command name="db/exec">
            <action class="net.lr.tutorial.karaf.db.command.ExecuteCommand">
                <property name="dbAccess" ref="dbAccess" />
            </action>
        </command>
        <command name="db/select">
            <action class="net.lr.tutorial.karaf.db.command.SelectCommand">
                <property name="dbSelect" ref="dbSelect" />
            </action>
            <completers>
                <ref component-id="dbNameCompleter" />
            </completers>
        </command>
    </command-bundle>


    <bean id="dbNameCompleter" class="net.lr.tutorial.karaf.db.command.DbNameCompleter">
        <property name="dbSelect" ref="dbSelect" />
    </bean>

    <bean id="dbAccess" class="net.lr.tutorial.karaf.db.service.DbAccess">
    </bean>

    <bean id="dbSelect" class="net.lr.tutorial.karaf.db.service.DbSelect">
        <property name="context" ref="blueprintBundleContext" />
        <property name="dbAccess" ref="dbAccess" />
    </bean>

</blueprint>