Re: @SpringBean injection problem

2008-08-31 Thread Sasha Ovsankin 

Cemal --

Thanks, the trace indeed looks familiar. I will try the suggestion to 
make Bean2 an interface. I will also try to distill a test from this 
problem.


Will let you know.

Thanks,
-- Sasha

jWeekend wrote:

Sasha,

Does the trace at the end of this note, in my PS, look familiar?
Now try the following code (notice the addition and use of the IBean2
interface) - things should work once you make the type of the reference in
your component (a Page in this case) the interface. If you can't do that on
your project (eg Bean2 is from a 3rd party library) then we'll have to take
another look.
Does that help?

 
bean id=bean1 class=scratch.springbean.Bean1/

bean id=bean2 class=scratch.springbean.Bean2constructor-arg
ref=bean1//bean
===
public class SpringBeanPage extends WebPage{
@SpringBean IBean2 bean2;
public SpringBeanPage() {
add(new Label(sprung,bean2.getBean1().name));
}   
}


public class Bean1 {
public String name;
@Override
public String toString() {
return name;
}
}
===
public class Bean2 implements IBean2 {
public Bean1 bean1;
protected Bean2(Bean1 bean1) {
super();
this.bean1 = bean1;
bean1.name = Sprung;
}
public Bean1 getBean1() {
return bean1;
}
public void setBean1(Bean1 bean1) {
this.bean1 = bean1;
}
}

Regards - Cemal
http://www.jWeekend.co.uk http://jWeekend.co.uk 

PS Is this similar to the exception you saw? 
org.apache.wicket.WicketRuntimeException: Can't instantiate page using

constructor public scratch.springbean.SpringBeanPage()
at
org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:168)
at
org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:58)
at
org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.newPage(BookmarkablePageRequestTarget.java:262)
at
org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.getPage(BookmarkablePageRequestTarget.java:283)
at
org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.processEvents(BookmarkablePageRequestTarget.java:210)
at
org.apache.wicket.request.AbstractRequestCycleProcessor.processEvents(AbstractRequestCycleProcessor.java:91)
at
org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1166)
at org.apache.wicket.RequestCycle.step(RequestCycle.java:1243)
at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1331)
at org.apache.wicket.RequestCycle.request(RequestCycle.java:493)
at
org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:363)
at
org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:194)
at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)
at
org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter.doFilterInternal(OpenEntityManagerInViewFilter.java:112)
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)
at 
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:360)
at
org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at 
org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
at 
org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:726)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)
at 
org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139)
at org.mortbay.jetty.Server.handle(Server.java:324)
at 
org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505)
at
org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:828)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:514)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380)
at
org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:395)
at
org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:450)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown
Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at
org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:149)
... 29 more
Caused by: java.lang.RuntimeException: error while injecting object [[Page
class = scratch.springbean.SpringBeanPage, id = 0, version

Re: @SpringBean injection problem

2008-08-31 Thread Igor Vaynberg 
this isnt really wicket-specific. this is just something you need to
be aware of when dealing with IOC containers. if you wanted to eg have
transactional methods on this bean you would run into the same problem
as spring would try to create a proxy of your class to manage
transactions (unless you were using direct bytecode weaving...)

-igor

On Sun, Aug 31, 2008 at 6:45 PM, Sasha Ovsankin
[EMAIL PROTECTED] wrote:
 Cemal --

 Thanks, the trace indeed looks familiar. I will try the suggestion to make
 Bean2 an interface. I will also try to distill a test from this problem.

 Will let you know.

 Thanks,
 -- Sasha

 jWeekend wrote:

 Sasha,

 Does the trace at the end of this note, in my PS, look familiar?
 Now try the following code (notice the addition and use of the IBean2
 interface) - things should work once you make the type of the reference in
 your component (a Page in this case) the interface. If you can't do that
 on
 your project (eg Bean2 is from a 3rd party library) then we'll have to
 take
 another look.
 Does that help?

  bean id=bean1 class=scratch.springbean.Bean1/
bean id=bean2 class=scratch.springbean.Bean2constructor-arg
 ref=bean1//bean
 ===
 public class SpringBeanPage extends WebPage{
@SpringBean IBean2 bean2;
public SpringBeanPage() {
add(new Label(sprung,bean2.getBean1().name));
}   }
 
 public class Bean1 {
public String name;
@Override
public String toString() {
return name;
}
 }
 ===
 public class Bean2 implements IBean2 {
public Bean1 bean1;
protected Bean2(Bean1 bean1) {
super();
this.bean1 = bean1;
bean1.name = Sprung;
}
public Bean1 getBean1() {
return bean1;
}
public void setBean1(Bean1 bean1) {
this.bean1 = bean1;
}
 }

 Regards - Cemal
 http://www.jWeekend.co.uk http://jWeekend.co.uk
 PS Is this similar to the exception you saw?
 org.apache.wicket.WicketRuntimeException: Can't instantiate page using
 constructor public scratch.springbean.SpringBeanPage()
at

 org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:168)
at

 org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:58)
at

 org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.newPage(BookmarkablePageRequestTarget.java:262)
at

 org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.getPage(BookmarkablePageRequestTarget.java:283)
at

 org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.processEvents(BookmarkablePageRequestTarget.java:210)
at

 org.apache.wicket.request.AbstractRequestCycleProcessor.processEvents(AbstractRequestCycleProcessor.java:91)
at

 org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1166)
at org.apache.wicket.RequestCycle.step(RequestCycle.java:1243)
at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1331)
at org.apache.wicket.RequestCycle.request(RequestCycle.java:493)
at
 org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:363)
at

 org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:194)
at

 org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)
at

 org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter.doFilterInternal(OpenEntityManagerInViewFilter.java:112)
at

 org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
at

 org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)
at
 org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:360)
at

 org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at
 org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
at
 org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:726)
at
 org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)
at
 org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139)
at org.mortbay.jetty.Server.handle(Server.java:324)
at
 org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505)
at

 org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:828)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:514)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380)
at

 org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:395)
at

 org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:450)
 Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
 Method)

Re: @SpringBean injection problem went away

2008-08-31 Thread Sasha Ovsankin 

Igor and all --

I also had this problem when using default constructor and 
initialization by properties.


OTOH I have Hibernate DAO classes using transactions, and they work fine.

Good news, the problem went away when I broke the Bean1-Bean2 chain 
because of application reasons. If/when the problem reappears, I will 
try to report in more detail.


Thanks everyone for your help,
-- Sasha

Igor Vaynberg wrote:

this isnt really wicket-specific. this is just something you need to
be aware of when dealing with IOC containers. if you wanted to eg have
transactional methods on this bean you would run into the same problem
as spring would try to create a proxy of your class to manage
transactions (unless you were using direct bytecode weaving...)

-igor

On Sun, Aug 31, 2008 at 6:45 PM, Sasha Ovsankin
[EMAIL PROTECTED] wrote:

Cemal --

Thanks, the trace indeed looks familiar. I will try the suggestion to make
Bean2 an interface. I will also try to distill a test from this problem.

Will let you know.

Thanks,
-- Sasha

jWeekend wrote:

Sasha,

Does the trace at the end of this note, in my PS, look familiar?
Now try the following code (notice the addition and use of the IBean2
interface) - things should work once you make the type of the reference in
your component (a Page in this case) the interface. If you can't do that
on
your project (eg Bean2 is from a 3rd party library) then we'll have to
take
another look.
Does that help?

 bean id=bean1 class=scratch.springbean.Bean1/
   bean id=bean2 class=scratch.springbean.Bean2constructor-arg
ref=bean1//bean
===
public class SpringBeanPage extends WebPage{
   @SpringBean IBean2 bean2;
   public SpringBeanPage() {
   add(new Label(sprung,bean2.getBean1().name));
   }   }

public class Bean1 {
   public String name;
   @Override
   public String toString() {
   return name;
   }
}
===
public class Bean2 implements IBean2 {
   public Bean1 bean1;
   protected Bean2(Bean1 bean1) {
   super();
   this.bean1 = bean1;
   bean1.name = Sprung;
   }
   public Bean1 getBean1() {
   return bean1;
   }
   public void setBean1(Bean1 bean1) {
   this.bean1 = bean1;
   }
}

Regards - Cemal
http://www.jWeekend.co.uk http://jWeekend.co.uk
PS Is this similar to the exception you saw?
org.apache.wicket.WicketRuntimeException: Can't instantiate page using
constructor public scratch.springbean.SpringBeanPage()
   at

org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:168)
   at

org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:58)
   at

org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.newPage(BookmarkablePageRequestTarget.java:262)
   at

org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.getPage(BookmarkablePageRequestTarget.java:283)
   at

org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.processEvents(BookmarkablePageRequestTarget.java:210)
   at

org.apache.wicket.request.AbstractRequestCycleProcessor.processEvents(AbstractRequestCycleProcessor.java:91)
   at

org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1166)
   at org.apache.wicket.RequestCycle.step(RequestCycle.java:1243)
   at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1331)
   at org.apache.wicket.RequestCycle.request(RequestCycle.java:493)
   at
org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:363)
   at

org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:194)
   at

org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)
   at

org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter.doFilterInternal(OpenEntityManagerInViewFilter.java:112)
   at

org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
   at

org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)
   at
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:360)
   at

org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
   at
org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
   at
org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:726)
   at
org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)
   at
org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139)
   at org.mortbay.jetty.Server.handle(Server.java:324)
   at
org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505)
   at

org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:828)
   at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:514)
   at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)
   at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380)
   at