This last section contains some bits and bobs related to the dynamic language support.
It is possible to use the Spring AOP framework to advise scripted beans. The Spring AOP framework actually is unaware that a bean that is being advised might be a scripted bean, so all of the AOP use cases and functionality that you may be using or aim to use will work with scripted beans. There is just one (small) thing that you need to be aware of when advising scripted beans... you cannot use class-based proxies, you must use interface-based proxies.
You are of course not just limited to advising scripted beans... you can also write aspects themselves in a supported dynamic language and use such beans to advise other Spring beans. This really would be an advanced use of the dynamic language support though.
In case it is not immediately obvious, scripted beans can of course be scoped
just like any other bean. The
scope attribute on the
<lang:language/> elements allows you to
control the scope of the underlying scripted bean, just as it does with a
regular bean. (The default scope is
singleton, just as it
is with 'regular' beans.)
Find below an example of using the
to define a Groovy bean scoped as a
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:lang="http://www.springframework.org/schema/lang" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang-2.5.xsd"> <lang:groovy id="messenger" script-source="classpath:Messenger.groovy" scope="prototype"> <lang:property name="message" value="I Can Do The RoboCop" /> </lang:groovy> <bean id="bookingService" class="x.y.DefaultBookingService"> <property name="messenger" ref="messenger" /> </bean> </beans>