<bean id="dataSource" class="hu.xxx.services.CustomDelegatingDataSourceImpl" destroy-method="destroy">
        <property name="targetDataSource"><ref bean="targetDataSource"/></property>
        <property name="url" value="${jdbc.url}"/>
        <property name="username" value="${jdbc.username}" />
        <property name="password" value="${jdbc.password}" />
        <property name="suppressClose" value="true"/>
    </bean>

    <bean id="targetDataSource" class="org.springframework.jdbc.datasource.SingleConnectionDataSource">
        <property name="driverClassName" value="${jdbc.driverClassName}"/>
    </bean>