setAutoCommit(false) is invaild

[caojia5555]

i use mysqldatabase ,datasoure is  c3p0 database pool
spring configure as that

<bean id="jooqfactory" class="org.jooq.impl.Factory">
<constructor-arg>
<ref bean="dataSource" />
</constructor-arg>
<constructor-arg type="org.jooq.SQLDialect" value="MYSQL"></constructor-arg>
</bean>

jooqfactory.setAutoCommit(false);//this isn't vaild 
jooqfactory.getAutoCommit();//this result is true; 

but i try type
Connection conn=datasoure.getConnection();
jooqfactory.setConnection(conn);
jooqfactory.setAutoCommit(false);
jooqfactory.getAutoCommit()// this result is false;