java.util.Properties Silly Newbie Question

[robbiest]

Apologies for silly question and thanks in advance for your replies.

Why can't I read in a java.util.Properties bean? Lists, Maps, homemade beans no problem. The "proper" bean below is always empty when it is read in. There's no error in deploying.

What is missing?

<bean id="proper" class="java.util.Properties">
 <constructor-arg>
  <props>
   <prop key="one">numberone</prop>
  </props>
 </constructor-arg>
</bean>

[cmgharris]

I think PropertiesFactoryBean may do what you want.
It supports loading properties both from a properties file and/or locally.
See the Javadoc for details.

[irbouho]

You may also review the following thread properties ref fail as it explains why proper is always empty.
HTH

[robbiest]

Thanks for your replies. I ended up using a HashMap workaround.

[sscharff]

You have to remove the value Tag in the constructor-arg tag. Example:

<bean id="quartzProperties" class="java.util.Properties">
    <constructor-arg>
        <props>
            <prop key="org.quartz.jobStore.tablePrefix">QRTZ_</prop>
            <prop key="org.quartz.jobStore.selectWithLockSQL">
                SELECT * FROM {0}LOCKS UPDLOCK WHERE LOCK_NAME = ?
            </prop>
        </props>
    </constructor-arg>
</bean>

Blog article about this topic

cheers*stephan