Re: [Springframework-developer] Significance of 'readonly'?

[Eduardo I. I. <zi...@su...>]

That must go in the reference manual! There is no mention about what 
readOnly does.

jürgen höller [werk3AT] wrote:
> It's essentially just a hint. Transaction managers will try to apply it wherever they can: For example, a transactional JDBC Connection will receive a corresponding setReadOnly(true) call, and a transactional Hibernate Session will be turned to FLUSH_NEVER. While the former is neglected by most JDBC drivers, the latter avoids unnecessary dirty checking of all objects loaded by the current Session.
> 
> Juergen
> 
> 
> -----Original Message-----
> From: spr...@li...
> [mailto:spr...@li...]On Behalf
> Of James Cook
> Sent: Tuesday, August 03, 2004 3:25 PM
> To: spr...@li...
> Subject: [Springframework-developer] Significance of 'readonly'?
> 
> 
> When using the following bean definition:
> 
> <bean id="petStore" class=
> "org.springframework.transaction.interceptor.TransactionProxyFactoryBean">
>   <property name="transactionManager">
>     <ref bean="transactionManager"/>
>   </property>
>   <property name="target">
>     <ref bean="petStoreTarget"/>
>   </property>
>   <property name="transactionAttributes">
>     <props>
>       <prop key="insert*">PROPAGATION_REQUIRED,-MyCheckedException</prop>
>       <prop key="update*">PROPAGATION_REQUIRED</prop>
>       <prop key="*">PROPAGATION_REQUIRED,readOnly</prop>
>     </props>
>   </property>
> </bean>
> 
> What is the significance of the readOnly attribute in the property list? Is
> this just a "hint" passed to certain transaction managers that may be able
> to optimize these methods, or does it result in a specific, repeatable
> behavior?
> 
> 
> 
> 
> 
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-- 
<Eduardo Issao Ito/>
<Summa Technologies/>

“The ideal project is one where people don't have meetings, they have 
lunch.” — Bill Joy