So basically you are saying is that remove scope="singleton" right?
Chris Pratt wrote:
>
> It's being called twice because, since you defined it as scope=singleton,
> Spring is creating a singleton instance for you automatically on start-up.
> Then your code is creating another instance in your getStartupService()
> method. You don't need to explicitly instantiate one, just let Spring
> inject it where you need it.
> (*Chris*)
>
> On Tue, Jul 13, 2010 at 11:42 AM, hisameer
> <cool_sameer_fo...@yahoo.com>wrote:
>
>>
>> Thanks for the suggestion. I have implemented it, but the issue is that
>> the
>> bean is called twice.I am using websphere server 6.1. Do you have any
>> idea
>> why its happening?
>>
>> Here is the code in ApplicationContext.xml
>>
>> <bean id="initBean" class="com.singleton.startup.service.StartUPService"
>> scope="singleton" init-method="init">
>> <property name="flag" value="true" />
>> <property name="days" value="15" />
>> </bean>
>>
>>
>> and StartUPService.java class looks like this:
>> public class StartUPService implements ApplicationContextAware {
>>
>> private static StartUPService ref;
>>
>> private ApplicationContext ctx;
>>
>> private static Logger logger =
>> Logger.getLogger(StartUPService.class);
>>
>> private boolean flag= true;
>>
>> private ServiceDAO dao;
>>
>> private int days= 15;
>>
>> private StartUPService() {
>> // no code req'd
>> }
>>
>> public static StartUPService getStartUPService() {
>>
>> if (ref == null) {
>> // it's ok, we can call this constructor
>> ref = new StartUPService();
>> }
>> return ref;
>> }
>>
>> public void init() {
>>
>> if (ref == null) {
>> // it's ok, we can call this constructor
>> ref = new StartUPService();
>> long startTime = System.currentTimeMillis();
>> loadRequiredObject();
>> long endTime = System.currentTimeMillis();
>> logger.info("The Total time taken is: " + (endTime
>> - startTime)
>> + " ms");
>> }
>>
>> }
>>
>> private void loadRequiredObject(){
>> if (dao== null) {
>> dao= (ServiceDAO) ctx.getBean("daoBean");
>> }
>> //here I will do some processing using the database access using
>> dao
>> service layer
>> }
>>
>>
>> satyanarayana katta wrote:
>> >
>> > Using the application level spring container would be sufficient with
>> init
>> > method set.
>> >
>> > Sent from my iPhone
>> >
>> > On Jun 25, 2010, at 11:36 AM, hisameer <cool_sameer_fo...@yahoo.com>
>> > wrote:
>> >
>> >>
>> >> Hi,
>> >>
>> >> I am using Struts2.1.6+Spring2.5.6+Hibernate+JPA in my web
>> application.
>> >> The
>> >> application server is JBOSS5. I have to implement a logic so that when
>> >> the
>> >> server starts I can execute some database scripts using my DAO service
>> >> layer. And this class is responsible loading some required variables
>> from
>> >> the database. The class should execute only one on the start up.
>> >>
>> >> Please give me some suggestions how to do this. If possible write some
>> >> sample code.
>> >>
>> >> Thanks,
>> >> Sameer
>> >> --
>> >> View this message in context:
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>> >>
>> >>
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>> >
>>
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>
>
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