Re: Re: Get object form Parameters

2008-09-27 Thread Eyal Golan 
On Sat, Sep 27, 2008 at 8:38 AM, fish3934 [EMAIL PROTECTED] wrote:

 How to pass id and got that object from that id?

Instead of:
   PageParameters  para=new PageParameters();
   para.put(result,resultList);
do somethig like this:
para.put(listId, resultListId);
Where the resultListID is the ID that you can retrieve your list afterwords
(from a DAO or whatever).
Then in the other page instead of:
List list = (List)param.get(result);
Do:
Integer id = param.getInt(listId); // If I have a typo error please excuse
me, I'm not near an IDE now.
List list = myDao.getList(id);



 I am sorry,I learned wicket just a few days.Is there any other ways to pass
 an object form one page to another page?

Yes,
You can make your other page not bookmarkable and pass the object (in your
case the list) in the constructor.
public class MyPage extends WebPage {
  public MyPage(List? inputList) {
...

You can even make this page to have several constructors.
One that gets a List and one that gets PageParameters.

-- 
Eyal Golan
[EMAIL PROTECTED]

Visit: http://jvdrums.sourceforge.net/
LinkedIn: http://www.linkedin.com/in/egolan74

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Get object form Parameters

2008-09-26 Thread fish3934 
 Hi All,
I wanted to pass an object from one page to another page,so
I set an object into a parameter:
PageParameters  para=new PageParameters();
para.put(result,resultList);//resultList is a List contains some pojo.
//jump to another page
setResponsePage(DeviceEnquiry.class,para);

Then at DeviceEnquiry.java ,I want to get resultList:
class DeviceEnquiry extends WebPage
{
  public DeviceEnquiry (PageParameters  param)
  {
  List list = (List)param.get(result);
  //
}
 }

 But I got an exception:


WicketMessage: Can't instantiate page using constructor public 
com.hk.xportal.xseries.enquiry.DeviceEnquiry(org.apache.wicket.PageParameters) 
and argument result = [EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL PROTECTED], 
[EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL PROTECTED], 
[EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL PROTECTED]

Root cause:

java.lang.ClassCastException: [Ljava.lang.String;
 at 
com.hk.xportal.xseries.enquiry.DeviceEnquiry.init(DeviceEnquiry.java:16)
 at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
 at java.lang.reflect.Constructor.newInstance(Constructor.java:494)
 at 
org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:147)
 at 
org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:88)
 at 
org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.newPage(BookmarkablePageRequestTarget.java:268)
 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:1171)
 at org.apache.wicket.RequestCycle.step(RequestCycle.java:1248)
 at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1349)
 at org.apache.wicket.RequestCycle.request(RequestCycle.java:493)
 at 
org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:387)
 at 
org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:199)
 at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
 at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
 at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
 at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
 at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
 at 
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
 at 
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
 at 
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151)
 at 
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874)
 at 
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
 at 
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
 at 
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
 at 
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
 at java.lang.Thread.run(Thread.java:595)

Complete stack:

org.apache.wicket.WicketRuntimeException: Can't instantiate page using 
constructor public 
com.hk.xportal.xseries.enquiry.DeviceEnquiry(org.apache.wicket.PageParameters) 
and argument result = [EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL PROTECTED], 
[EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL PROTECTED], 
[EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL PROTECTED]
 at 
org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:168)
 at 
org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:88)
 at 
org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.newPage(BookmarkablePageRequestTarget.java:268)
 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:1171)
 at org.apache.wicket.RequestCycle.step(RequestCycle.java:1248)
 at

Re: Get object form Parameters

2008-09-26 Thread Igor Vaynberg 
pageparameters is used for passing parameters on the url, so it only
supports strings or whatever you can convert to a string.

-igor

On Fri, Sep 26, 2008 at 9:35 PM, fish3934 [EMAIL PROTECTED] wrote:
  Hi All,
I wanted to pass an object from one page to another page,so
I set an object into a parameter:
PageParameters  para=new PageParameters();
para.put(result,resultList);//resultList is a List contains some pojo.
//jump to another page
setResponsePage(DeviceEnquiry.class,para);

Then at DeviceEnquiry.java ,I want to get resultList:
class DeviceEnquiry extends WebPage
{
  public DeviceEnquiry (PageParameters  param)
  {
  List list = (List)param.get(result);
  //
}
 }

  But I got an exception:


 WicketMessage: Can't instantiate page using constructor public 
 com.hk.xportal.xseries.enquiry.DeviceEnquiry(org.apache.wicket.PageParameters)
  and argument result = [EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL 
 PROTECTED], [EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL 
 PROTECTED], [EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL PROTECTED]

 Root cause:

 java.lang.ClassCastException: [Ljava.lang.String;
 at 
 com.hk.xportal.xseries.enquiry.DeviceEnquiry.init(DeviceEnquiry.java:16)
 at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
 at java.lang.reflect.Constructor.newInstance(Constructor.java:494)
 at 
 org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:147)
 at 
 org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:88)
 at 
 org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.newPage(BookmarkablePageRequestTarget.java:268)
 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:1171)
 at org.apache.wicket.RequestCycle.step(RequestCycle.java:1248)
 at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1349)
 at org.apache.wicket.RequestCycle.request(RequestCycle.java:493)
 at 
 org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:387)
 at 
 org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:199)
 at 
 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
 at 
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
 at 
 org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
 at 
 org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
 at 
 org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
 at 
 org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
 at 
 org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
 at 
 org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151)
 at 
 org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874)
 at 
 org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
 at 
 org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
 at 
 org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
 at 
 org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
 at java.lang.Thread.run(Thread.java:595)

 Complete stack:

 org.apache.wicket.WicketRuntimeException: Can't instantiate page using 
 constructor public 
 com.hk.xportal.xseries.enquiry.DeviceEnquiry(org.apache.wicket.PageParameters)
  and argument result = [EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL 
 PROTECTED], [EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL 
 PROTECTED], [EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL PROTECTED]
 at 
 org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:168)
 at 
 org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:88)
 at 
 org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.newPage(BookmarkablePageRequestTarget.java:268)
 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

Re: Get object form Parameters

2008-09-26 Thread 张伟 
pass id， and then get that object from that id

2008/9/27 Igor Vaynberg [EMAIL PROTECTED]

 pageparameters is used for passing parameters on the url, so it only
 supports strings or whatever you can convert to a string.

 -igor

 On Fri, Sep 26, 2008 at 9:35 PM, fish3934 [EMAIL PROTECTED] wrote:
   Hi All,
 I wanted to pass an object from one page to another page,so
 I set an object into a parameter:
 PageParameters  para=new PageParameters();
 para.put(result,resultList);//resultList is a List contains some
 pojo.
 //jump to another page
 setResponsePage(DeviceEnquiry.class,para);
 
 Then at DeviceEnquiry.java ,I want to get resultList:
 class DeviceEnquiry extends WebPage
 {
   public DeviceEnquiry (PageParameters  param)
   {
   List list = (List)param.get(result);
   //
 }
  }
 
   But I got an exception:
 
 
  WicketMessage: Can't instantiate page using constructor public
 com.hk.xportal.xseries.enquiry.DeviceEnquiry(org.apache.wicket.PageParameters)
 and argument result = [EMAIL PROTECTED],
 [EMAIL PROTECTED],
 [EMAIL PROTECTED],
 [EMAIL PROTECTED],
 [EMAIL PROTECTED],
 [EMAIL PROTECTED],
 [EMAIL PROTECTED],
 [EMAIL PROTECTED],
 [EMAIL PROTECTED],
 [EMAIL PROTECTED]
 
  Root cause:
 
  java.lang.ClassCastException: [Ljava.lang.String;
  at
 com.hk.xportal.xseries.enquiry.DeviceEnquiry.init(DeviceEnquiry.java:16)
  at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
 Method)
  at java.lang.reflect.Constructor.newInstance(Constructor.java:494)
  at
 org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:147)
  at
 org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:88)
  at
 org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.newPage(BookmarkablePageRequestTarget.java:268)
  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:1171)
  at org.apache.wicket.RequestCycle.step(RequestCycle.java:1248)
  at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1349)
  at org.apache.wicket.RequestCycle.request(RequestCycle.java:493)
  at
 org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:387)
  at
 org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:199)
  at
 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
  at
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
  at
 org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
  at
 org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
  at
 org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
  at
 org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
  at
 org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
  at
 org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151)
  at
 org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874)
  at
 org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
  at
 org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
  at
 org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
  at
 org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
  at java.lang.Thread.run(Thread.java:595)
 
  Complete stack:
 
  org.apache.wicket.WicketRuntimeException: Can't instantiate page using
 constructor public
 com.hk.xportal.xseries.enquiry.DeviceEnquiry(org.apache.wicket.PageParameters)
 and argument result = [EMAIL PROTECTED],
 [EMAIL PROTECTED],
 [EMAIL PROTECTED],
 [EMAIL PROTECTED],
 [EMAIL PROTECTED],
 [EMAIL PROTECTED],
 [EMAIL PROTECTED],
 [EMAIL PROTECTED],
 [EMAIL PROTECTED],
 [EMAIL PROTECTED]
  at
 org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:168)
  at
 org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:88)
  at
 org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.newPage(BookmarkablePageRequestTarget.java:268)
  at
 org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.getPage(BookmarkablePageRequestTarget.java:283)
  at

Re:Re: Get object form Parameters

2008-09-26 Thread fish3934 
 OH.Thinks for the reply.
 Yes,I can get a string through parameter.
 How to pass id and got that object from that id? I am sorry,I learned wicket 
just a few days.Is there any other ways to pass an object form one page to 
another page? 
 


在2008-09-27，张伟 [EMAIL PROTECTED] 写道：
pass id， and then get that object from that id

2008/9/27 Igor Vaynberg (DeviceEnquiry.java:16)
  at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
 Method)
  at java.lang.reflect.Constructor.newInstance(Constructor.java:494)
  at
 org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:147)
  at
 org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:88)
  at
 org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.newPage(BookmarkablePageRequestTarget.java:268)
  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:1171)
  at org.apache.wicket.RequestCycle.step(RequestCycle.java:1248)
  at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1349)
  at org.apache.wicket.RequestCycle.request(RequestCycle.java:493)
  at
 org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:387)
  at
 org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:199)
  at
 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
  at
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
  at
 org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
  at
 org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
  at
 org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
  at
 org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
  at
 org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
  at
 org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151)
  at
 org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874)
  at
 org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
  at
 org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
  at
 org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
  at
 org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
  at java.lang.Thread.run(Thread.java:595)
 
  Complete stack:
 
  org.apache.wicket.WicketRuntimeException: Can't instantiate page using
 constructor public
 com.hk.xportal.xseries.enquiry.DeviceEnquiry(org.apache.wicket.PageParameters)
 and argument result = [EMAIL PROTECTED],
 [EMAIL PROTECTED],
 [EMAIL PROTECTED],
 [EMAIL PROTECTED],
 [EMAIL PROTECTED],
 [EMAIL PROTECTED],
 [EMAIL PROTECTED],
 [EMAIL PROTECTED],
 [EMAIL PROTECTED],
 [EMAIL PROTECTED]
  at
 org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:168)
  at
 org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:88)
  at
 org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.newPage(BookmarkablePageRequestTarget.java:268)
  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:1171)
  at org.apache.wicket.RequestCycle.step(RequestCycle.java:1248)
  at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1349)
  at org.apache.wicket.RequestCycle.request(RequestCycle.java:493)
  at
 org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:387)
 
  //
 
 
 

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