<xa-datasource jndi-name="java:jboss/datasources/settings_db" pool-name="setting_db" enabled="true" use-ccm="true">
                    <xa-datasource-property name="ServerName">
                        server
                    </xa-datasource-property>
                    <xa-datasource-property name="DatabaseName">
                        database
                    </xa-datasource-property>
                    <driver>mysql</driver>
<validation>
<valid-connection-checker class-name="org.jboss.resource.adapter.jdbc.vendor.MySQLValidConnectionChecker"/>
<exception-sorter class-name="org.jboss.resource.adapter.jdbc.vendor.MySQLExceptionSorter"/>
</validation>
<security>

                        <user-name>user</user-name>
                        <password>password</password>
                    </security>
                    <validation>
                        <validate-on-match>true</validate-on-match>
                        <background-validation>true</background-validation>
                    </validation>
                    <statement>
                        <share-prepared-statements>false</share-prepared-statements>
                    </statement>
                </xa-datasource>