Thanks for the help Paul! Sorry about the question; having difficulty
expressing it easily.
Keep up the good work once again!
Andrew
On 2/23/09 12:01 PM, "Paul Sandoz" <Paul.Sandoz_at_Sun.COM> wrote:
>
> On Feb 23, 2009, at 6:53 PM, Andrew Feller wrote:
>
>> Let me see if I can rephrase the question:
>>
>> Is there a way to declare a Spring bean that represents a Jersey
>> resource
>> within the Spring XML file (applicationContext.xml) and have this
>> Spring
>> bean used to process requests?
>>
>> <bean id="blahResource"
>> class="org.example.rest.resources.BlahResource">
>> <property name="..." value="..." />
>> <property name="..." value="..." />
>> </bean>
>>
>
> I understand now. Yes you can, at the end of the email is a 2.5
> compliant applicationContext.xml we use for testing.
>
> Paul.
>
> <beans xmlns="http://www.springframework.org/schema/beans"
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
> xmlns:util="http://www.springframework.org/schema/util"
> xmlns:context="http://www.springframework.org/schema/context"
> xmlns:aop="http://www.springframework.org/schema/aop"
> xmlns:tx="http://www.springframework.org/schema/tx"
> xsi:schemaLocation="
> http://www.springframework.org/schema/beans
> http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
> http://www.springframework.org/schema/util
> http://www.springframework.org/schema/util/spring-util.xsd
> http://www.springframework.org/schema/context
> http://www.springframework.org/schema/context/spring-context-2.5.xsd
> http://www.springframework.org/schema/aop
> http://www.springframework.org/schema/aop/spring-aop.xsd
> http://www.springframework.org/schema/tx
> http://www.springframework.org/schema/tx/spring-tx.xsd
> ">
>
> <!-- Autowiring support (spring 2.5) -->
> <!--
> The AutowiredAnnotationBeanPostProcessor and
> CommonAnnotationBeanPostProcessor are both
> included implicitly when using the component-scan element.
> That means that the two components are autodetected and
> wired together
> -->
> <context:component-scan base-package="com.sun.jersey.spring25"/>
>
> <aop:aspectj-autoproxy/>
>
> <bean id="loggingAdvice"
> class="com.sun.jersey.spring25.LoggingAdvice" />
>
> <bean id="managedSingletonResource"
> class="com.sun.jersey.spring.SpringManagedSingletonResource"
> scope="singleton">
> <property name="name">
> <util:constant static-
> field="com.sun.jersey.spring.TestData.MANAGED" />
> </property>
> <property name="item" ref="singletonItem" />
> </bean>
>
> <bean id="managedSingletonResourceWithConstructor"
> class
> ="com.sun.jersey.spring.SpringManagedSingletonResourceWithConstructor"
> scope="singleton">
> <constructor-arg>
> <util:constant static-
> field="com.sun.jersey.spring.TestData.MANAGED" />
> </constructor-arg>
> <constructor-arg ref="singletonItem" />
> </bean>
>
> <bean id="managedPerRequestResource"
> class="com.sun.jersey.spring.SpringManagedPerRequestResource"
> scope="prototype">
> <property name="singletonItem" ref="singletonItem" />
> <property name="prototypeItem" ref="prototypeItem" />
> </bean>
>
> <bean id="managedPerRequestResourceWithConstructor"
> class
> ="com.sun.jersey.spring.SpringManagedPerRequestResourceWithConstructor"
> scope="prototype">
> <constructor-arg ref="singletonItem" />
> <constructor-arg ref="prototypeItem" />
> </bean>
>
> <bean id="singletonItem" class="com.sun.jersey.spring.Item"
> scope="singleton">
> <property name="value">
> <util:constant static-
> field="com.sun.jersey.spring.TestData.MANAGED" />
> </property>
> </bean>
>
> <bean id="prototypeItem" class="com.sun.jersey.spring.Item2"
> scope="prototype">
> <property name="value">
> <util:constant static-
> field="com.sun.jersey.spring.TestData.MANAGED" />
> </property>
> </bean>
>
> <bean id="namedItem3_1" class="com.sun.jersey.spring.Item3"
> scope="singleton">
> <property name="value">
> <util:constant static-
> field="com.sun.jersey.spring.TestData.VAL_1" />
> </property>
> </bean>
>
> <bean id="namedItem3_2" class="com.sun.jersey.spring.Item3"
> scope="singleton">
> <property name="value">
> <util:constant static-
> field="com.sun.jersey.spring.TestData.VAL_2" />
> </property>
> </bean>
>
> </beans>
>
>>
>> On 2/23/09 11:10 AM, "Paul Sandoz" <Paul.Sandoz_at_Sun.COM> wrote:
>>
>>>
>>> On Feb 23, 2009, at 6:01 PM, Andrew Feller wrote:
>>>
>>>> Good morning Paul,
>>>>
>>>> So let me see if I understand this correctly (it is Monday):
>>>>
>>>> 1. The @Scope('singleton') annotation will tell the Jersey
>>>> SpringServlet
>>>> that this resource should only be instantiated once.
>>>>
>>>> 2. The @Component annotation will tell the Jersey SpringServlet that
>>>> this
>>>> resource should be looked up within the contextConfigLocation file
>>>> as
>>>> noted in web.xml.
>>>>
>>>
>>> The above annotations are defined by the Spring API. They declare to
>>> Spring what the scope of the Spring bean is and that it is identified
>>> as a Spring bean. You could do the same in the Spring XML
>>> configuration if you wished.
>>>
>>> The Jersey Spring integration defers to Spring for to obtain an
>>> instance. Jersey determines the Spring scope under which Spring
>>> instantiates so it can inject JAX-RS/Jersey specific stuff within the
>>> constraints of the Spring scope.
>>>
>>>
>>>> 3. If I follow the previous two assumptions, then I wouldn't need to
>>>> annotate resource fields as @Resource in order to inject objects
>>>> into it; I could simply inject them while declaring the resource.
>>>>
>>>
>>> I am not sure i understand you. You mean in the constructor as
>>> constructor parameters?
>>>
>>> Paul.
>>>
>>>> Thanks once again for the help!
>>>> Andrew
>>>>
>>>>
>>>> On 2/23/09 9:04 AM, "Paul Sandoz" <Paul.Sandoz_at_Sun.COM> wrote:
>>>>
>>>>>
>>>>> On Feb 23, 2009, at 3:01 PM, Andrew Feller wrote:
>>>>>
>>>>>> QUESTION: Is it possible to have Jersey serve a resource as a
>>>>>> singleton yet declared within the applicationContext.xml?
>>>>>
>>>>> Yes. (I presume you are referring to Spring managed bean that is a
>>>>> resource class.)
>>>>>
>>>>>
>>>>>> Is this even recommended?
>>>>>>
>>>>>
>>>>> Sure, if that is what you require. My preference is for per-request
>>>>> because i think it is nicer to code to and safer but sometimes
>>>>> singleton can make sense e.g. caching information in-memory on the
>>>>> singleton.
>>>>>
>>>>> The spring-annotations sample [1] uses the Spring singleton scope
>>>>> (using annotations, not in the applicationContext.xml, but the
>>>>> result
>>>>> is the same), for example:
>>>>>
>>>>> @Path("/spring-autowired")
>>>>> @Component
>>>>> @Scope("singleton")
>>>>> public class SpringAutowiredResource {
>>>>>
>>>>> @Autowired
>>>>> @Qualifier("1")
>>>>> private Item2 _item;
>>>>>
>>>>> @GET
>>>>> @Produces("application/xml")
>>>>> public Item2 getItem() {
>>>>> return _item;
>>>>> }
>>>>> }
>>>>>
>>>>> Paul.
>>>>>
>>>>> [1]
>>>>> http://download.java.net/maven/2/com/sun/jersey/samples/spring-annotations
>>>>> /1
>>>>> .0
>>>>> .2/spring-annotations-1.0.2-project.zip
>>>>>
>>>>>
>>>>>
>>>>> ---------------------------------------------------------------------
>>>>> To unsubscribe, e-mail: users-unsubscribe_at_jersey.dev.java.net
>>>>> For additional commands, e-mail: users-help_at_jersey.dev.java.net
>>>>>
>>>>
>>>> --
>>>> Andrew Feller, Analyst
>>>> LSU University Information Services
>>>> 200 Frey Computing Services Center
>>>> Baton Rouge, LA 70803
>>>> Office: 225.578.3737
>>>> Fax: 225.578.6400
>>>>
>>>>
>>>> ---------------------------------------------------------------------
>>>> To unsubscribe, e-mail: users-unsubscribe_at_jersey.dev.java.net
>>>> For additional commands, e-mail: users-help_at_jersey.dev.java.net
>>>>
>>>
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: users-unsubscribe_at_jersey.dev.java.net
>>> For additional commands, e-mail: users-help_at_jersey.dev.java.net
>>>
>>
>> --
>> Andrew Feller, Analyst
>> LSU University Information Services
>> 200 Frey Computing Services Center
>> Baton Rouge, LA 70803
>> Office: 225.578.3737
>> Fax: 225.578.6400
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe_at_jersey.dev.java.net
>> For additional commands, e-mail: users-help_at_jersey.dev.java.net
>>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe_at_jersey.dev.java.net
> For additional commands, e-mail: users-help_at_jersey.dev.java.net
>
--
Andrew Feller, Analyst
LSU University Information Services
200 Frey Computing Services Center
Baton Rouge, LA 70803
Office: 225.578.3737
Fax: 225.578.6400