Implementing callback handler for a JMSControl
Hi,
I am implementing an MDB using the JMSControl. When the control is generated it contains a callback method.
How do i go about using the call back method or implementing the interface provided in there? I would like to execute some custom code in the onMessage() event of the MDB.
Regards,
Mayank
Message was edited by:
unerklarlich
You would have the CallbackHandler create a modal dialog and block until it's closed. Then read from the textfields in the dialog. public void handle(Callback... callbacks)
JTextField name = new JTextField();
JTextField password = new JTextField();
JDialog dialog = new JDialog(parentFrame, true);
// Put the name and password in the dialog with suitable labels.
dialog.pack();
dialog.setVisible(true);
String username = name.getText();
String pass = password.getText();
// Call the callbacks.
}
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Edited by: saptarishi on May 25, 2010 4:24 PM
Edited by: saptarishi on May 26, 2010 4:45 PMSolved it by some googling .... :)
Here is the link:-
[http://abhishek-soablog.blogspot.com/2008/09/orabpel-02118.html]
or
[http://beautifulwaste.blogspot.com/2008/04/calling-asynchronous-bpel-process.html]
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'Send error email
If blnSendEmails Then
SendMail("[email protected], strMessages. applicationname, " has thrown error. ")
End If
'Throw error for debugging
If blnThrowErrors Then
Throw New Exception(strMessages & vbCrLf & objEx.Message)
End If
' Write to event log and if not available (shared hosting environment), write to text log
If blnWriteNow Then
If blnWriteToEvtLog Then
If blnCanWriteToEvtLog Then 'Program has write permission to log
WriteToEventLog(strMessages, _appname, EventLogEntryType.Error, appname)
Else
If Not Directory.Exists( appPath & "\log") Then
Try
Directory.CreateDirectory( appPath & "\log")
Catch ex As Exception
arrStatusMessages.Add("Cant't write to event log or create a directory")
End Try
End If
End If
End If
End If
End Sub
End ClassI have lots of stand alone stored procedures callled from .NET 20 programs that follow the following pattern. They runn against Oracle 10.2 on Win2003. The only deviiation is a couple where I insert to temptables. I specify a parameter for messages but don't know the best way to implement for Oracle as well as any tips on ODP.NET/oracle interactions error handling.
1. Is it recommended to implement exception handling in With Clauses?
2. If there is an exception in one cursor's SQL, how do I still execute the second?
3. Is it best in some circumstances to pass a null back to client and check for null in program?
From .NET programs I have run into a couple of problems.
4. TNS packet failure.
Anyways any suggestions or experiences are welcome.
CREATE OR REPLACE PROCEDURE GET_SALES_DATA
, p_businessdate in date
, p_message out varchar2
, p_rcSales out sys_refcursor
, p_rInventory out sys_refcursor
) is
open p_rcSales for
with somedata as (select ...)
, someMoreData as (selct ...)
-- Main select
Select * from somedata sd inner join somemoredata smd on smd.key = sd.key;
open p_rcInventory for
with somedata as (select ...)
, someMoreData as (selct ...)
-- Main select
Select * from somedata sd inner join somemoredata smd on smd.key = sd.key;
-- CODE NOT IMPLEMENTED
-- exception
-- when TOO_MANY_ROWS then select 'Error handling for future implementations' into p_message from dual ;
-- when NO_DATA_FOUND then select 'Error handling for future implementations. No data' into p_message from dual;
-- when others then raise_application_error(-20011,'Unknown Exception in GET_SALES_DATA Function');
-- WHEN invalid_business_date then select 'Invalid: Business date is in the current work week.' into p_message from dual ;
END GET_SALES_DATA;Pseudocode'ish because Module level variables and properties have not been defined here for brevity.
Public Class WebPage1
PAge_Load
GetData
End Class Data Access Layer
Public Class DAL
Public Sub GetOracleData()
Dim conn As OracleConnection
Try
conn = New OracleConnection
Catch ex As Exception
Throw ex
End Try
Dim cmd As New OracleCommand
With cmd
conn.ConnectionString = System.Configuration.ConfigurationManager.ConnectionStrings("MyConnectionString").ToString
cmd.CommandText = DATABASE.GetSalesData
cmd.CommandType = CommandType.StoredProcedure
cmd.Connection = conn
End With
cmd.Connection = conn
Dim oparam As OracleParameter
oparam = cmd.Parameters.Add("p_businessdate", OracleDbType.Date)
oparam.Value = BusinessDate.ToString("dd-MMM-yy")
oparam = cmd.Parameters.Add("p_message", OracleDbType.Varchar2, ParameterDirection.Output)
oparam = cmd.Parameters.Add("p_rc_inven_csv", OracleDbType.RefCursor, ParameterDirection.Output)
oparam = cmd.Parameters.Add("p_rcSales", OracleDbType.RefCursor, ParameterDirection.Output)
oparam = cmd.Parameters.Add("p_rcInventory", OracleDbType.RefCursor, ParameterDirection.Output)
Dim Adapter As New OracleDataAdapter(cmd)
Try
Adapter.TableMappings.Add("Table", Sales)
Adapter.TableMappings.Add("Table1", Inventory)
Adapter.Fill(dsOracleData)
Catch ex As OracleException
HandleError("Exception Retrieving Oracle Data", ex, MethodInfo.GetCurrentMethod.Name, True)
Finally
If conn.State = ConnectionState.Open Then
conn.Close()
End If
End Try
dbMessages = cmd.Parameters("p_message").ToString
End If
arrStatusMessages.Add("Retrieved Oracle Data Successfully")
End Sub
' Original Implementation ; No longer used
Public function GetOracleData
Dim conn As New OracleConnection
conn.ConnectionString = dbconn.Connectionstring
Dim cmd As New OracleCommand
With cmd
conn.ConnectionString = System.Configuration.ConfigurationManager.ConnectionStrings("MyConnectionString").ToString
cmd.CommandText = DATABASE.GetSalesData
cmd.CommandType = CommandType.StoredProcedure
cmd.Connection = conn
End With
cmd.Connection = conn
Dim oparam As OracleParameter
oparam = cmd.Parameters.Add("p_businessdate", OracleDbType.Date)
oparam.Value = BusinessDate.ToString("dd-MMM-yy")
oparam = cmd.Parameters.Add("p_message", OracleDbType.Varchar2, ParameterDirection.Output)
oparam = cmd.Parameters.Add("p_rcSales", OracleDbType.RefCursor, ParameterDirection.Output)
oparam = cmd.Parameters.Add("p_rcInventory", OracleDbType.RefCursor, ParameterDirection.Output)
Dim Adapter As New OracleDataAdapter(cmd)
Try
Adapter.TableMappings.Add("Table", Sales)
Adapter.TableMappings.Add("Table1", Inventory)
Adapter.Fill(dsOracleData)
dim dt as datatable = dsoracledata.tables("sales")
If IsDataNull(dt) Then
_errorType = DBErrorType.NullData
End If
If isDataEmpty(dt) Then
_errorType = DBErrorType.EmptyData
End If
_hasError = False
Catch oraEx As OracleException
_ExceptionText = oraEx.Message.ToString
_errorType = DBErrorType.OracleException
#If DEBUG Then
Throw oraEx
#End If
Catch zeroEx As DivideByZeroException
_ExceptionText = zeroEx.Message.ToString
_errorType = DBErrorType.DivideByZeroException
#If DEBUG Then
Throw zeroEx
#End If
Catch oflowEx As OverflowException
_ExceptionText = oflowEx.Message.ToString
_errorType = DBErrorType.OverflowException
#If DEBUG Then
Throw oflowEx
#End If
Catch argEx As InsufficientMemoryException
_ExceptionText = argEx.Message.ToString
_errorType = DBErrorType.InsufficientMemoryException
#If DEBUG Then
Throw argEx
#End If
Catch nomemEx As OutOfMemoryException
_ExceptionText = nomemEx.Message.ToString
_errorType = DBErrorType.OutOfMemoryException
#If DEBUG Then
Throw nomemEx
#End If
Catch Ex As Exception
_ExceptionText = Ex.Message.ToString
_errorType = DBErrorType.GenericException
#If DEBUG Then
Throw Ex
#End If
Finally
If conn.State = ConnectionState.Open Then
conn.Close()
End If
End Try
End class Error Class
Public Class Errors
Public Sub ExitClass()
Return
End Sub
' 'blnWriteNow says when Error is critical and no further processing needs to be done by class, then write to event logs or text files and call exit class
' to return control back to webpage. This is my first time trying this way.
Public Sub HandleError(ByVal friendlyMsg As String, ByVal objEx As Exception, ByVal methodInfo As String, Optional ByVal blnWriteNow As Boolean = False)
If Not blnWriteNow Then Exit Sub
Dim strMessages As String
strMessages = arrStatusMessages
'Send error email
If blnSendEmails Then
SendMail("[email protected], strMessages. applicationname, " has thrown error. ")
End If
'Throw error for debugging
If blnThrowErrors Then
Throw New Exception(strMessages & vbCrLf & objEx.Message)
End If
' Write to event log and if not available (shared hosting environment), write to text log
If blnWriteNow Then
If blnWriteToEvtLog Then
If blnCanWriteToEvtLog Then 'Program has write permission to log
WriteToEventLog(strMessages, _appname, EventLogEntryType.Error, appname)
Else
If Not Directory.Exists( appPath & "\log") Then
Try
Directory.CreateDirectory( appPath & "\log")
Catch ex As Exception
arrStatusMessages.Add("Cant't write to event log or create a directory")
End Try
End If
End If
End If
End If
End Sub
End Class -
How to implement Exception Handling error in IDoc to File and RFC to File
Hi,
We are implementing the two below scenarios :
1. IDOC to File
2. RFC to File
We have to implement the Exception Handling for the above two cases. Kindly could you provide the inputs to implement the Exception Handling for the above two cases.
Please provide the precious inputs to implement this.
Thanks,
RameshHi Ramesh,
The exception handling for idocs
http://help.sap.com/saphelp_nw04/helpdata/en/dc/6b7f1543d711d1893e0000e8323c4f/frameset.htm
Exception handling in File to IDoc Scenario
For RFCs
Re: Passing SAP Exceptions to a sync SOAP Call
Error Handling when using RFC
Exception Handling while Calling RFC - BPM
handle exceptions in remote function modules
Regards,
Prateek -
Implementing Exception Handling Application Block in custom web parts, event receivers
hi,
I am currently implementing try {} catch(Exception expp) { throw expp;} to handle exceptions in my intranet appln.
I have several custom web parts, event receivers, few console applciations as timer jobs etc. If i want to implement a robust exception handling what should be the approach. by searching, i saw, ms patterns n practices provides the
appln blocks.
But I think[ pls correct me if i am wrong ] those appln blocks are meant for asp.net applns ONLY.
if not, anyone has implemented those appln blocks in SP development? if yes, can anyone provide one sample / link to implement Exception Handling in SP.
help is appreciated!Hi,
Here are some articles for your reference:
Handling Error Centrally in a SharePoint Application
http://www.codeproject.com/Articles/26236/Handling-Error-Centrally-in-a-SharePoint-Applicati
Using Microsoft Enterprise Library Application Block in SharePoint
http://www.codeproject.com/Articles/21389/Using-Microsoft-Enterprise-Library-Application-Blo
Exception Handling in SharePoint
http://spmatt.wordpress.com/2012/02/01/exception-handling-in-sharepoint/
Best Regards
Dennis Guo
TechNet Community Support -
Event Handling for Graphic Shapes
Hi guys,
I have a problem on the implementation of a piece of software that i'm making, to be more specific i implement a GUI. In this GUI i draw rectangles, lines and that kind of things.
The problem is that i want when clicking on a rectangle, an event to take place such as the drawing of something else, or a message, etc.
How am i to achieve that? I've tried many things but didn't succeeded it unfortunately. How am i going to "give" life to my rectangles by adding event handling for them? What code should i write?
Note: My class extends JPanel & i'm using paint(Graphics g) for drawing the shapes
Thanks,
John.Try this:
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.awt.geom.*;
import java.util.*;
public class Shapes extends JFrame
DPanel pan = new DPanel();
public Shapes()
addWindowListener(new WindowAdapter()
public void windowClosing(WindowEvent ev)
dispose();
System.exit(0);
setBounds(10,10,400,350);
setContentPane(pan);
setVisible(true);
public class DPanel extends JPanel implements MouseListener
Vector shapes = new Vector();
Shape cs;
public DPanel()
addMouseListener(this);
shapes.add(new Rectangle(20,20,100,40));
shapes.add(new Rectangle(40,80,130,60));
shapes.add(new Line2D.Double(20,150,200,180));
public void paintComponent(Graphics g)
super.paintComponent(g);
Graphics2D g2 = (Graphics2D)g;
for (int j=0; j < shapes.size(); j++)
g2.draw((Shape)shapes.get(j));
g.setColor(Color.red);
if (cs != null) g2.draw(cs);
public void mouseClicked(MouseEvent m) {}
public void mouseEntered(MouseEvent m) {}
public void mouseExited(MouseEvent m) {}
public void mouseReleased(MouseEvent m){}
public void mousePressed(MouseEvent m)
for (int j=0; j < shapes.size(); j++)
Shape s = (Shape)shapes.get(j);
Rectangle r = new Rectangle(m.getX()-1,m.getY()-1,2,2);
if (s.intersects(r))
cs = s;
repaint();
public static void main (String[] args)
new Shapes();
}Noah -
WebDynpro error while implementing business package for hr administrator
Hi,
I am implementing Business package for Hr administrative services in EP 7.0. When I click the iview Start processess I get the following dynpro error. Please do help me as to how should I trace back the problem. com.sap.tc.webdynpro.services.exceptions.TypeNotFoundException: type com.sap.pa.asr.procst.model.procst.types.Asr_Withoutee could not be loaded: com.sap.dictionary.runtime.DdException: Type com.sap.pa.asr.procst.model.procst.types.Asr_Withoutee does not exist
at com.sap.tc.webdynpro.services.datatypes.core.DataTypeBroker.getSimpleType(DataTypeBroker.java:250)
at com.sap.tc.webdynpro.services.datatypes.core.DataTypeBroker.getDataType(DataTypeBroker.java:213)
at com.sap.tc.webdynpro.progmodel.context.DataAttributeInfo.init(DataAttributeInfo.java:318)
at com.sap.tc.webdynpro.progmodel.context.NodeInfo.initUnmappedAttributes(NodeInfo.java:670)
at com.sap.tc.webdynpro.progmodel.context.DataNodeInfo.doInit(DataNodeInfo.java:233)
at com.sap.tc.webdynpro.progmodel.context.NodeInfo.init(NodeInfo.java:654)
at com.sap.tc.webdynpro.progmodel.context.NodeInfo.init(NodeInfo.java:657)
at com.sap.tc.webdynpro.progmodel.context.NodeInfo.init(NodeInfo.java:657)
at com.sap.tc.webdynpro.progmodel.context.Context.init(Context.java:40)
at com.sap.tc.webdynpro.progmodel.controller.Controller.init(Controller.java:199)
at com.sap.tc.webdynpro.clientserver.cal.ClientComponent.init(ClientComponent.java:429)
at com.sap.tc.webdynpro.clientserver.cal.ClientComponent.createComponent(ClientComponent.java:932)
at com.sap.tc.webdynpro.clientserver.cal.ClientComponent.createComponent(ClientComponent.java:176)
at com.sap.tc.webdynpro.progmodel.components.ComponentUsage.createComponentInternal(ComponentUsage.java:142)
at com.sap.tc.webdynpro.progmodel.components.ComponentUsage.createComponent(ComponentUsage.java:134)
at com.sap.pcuigp.xssfpm.wd.FPMComponent$ComponentUsageManager.createBLCComponentUsage(FPMComponent.java:840)
at com.sap.pcuigp.xssfpm.wd.FPMComponent$FPM.attachComponentToUsage(FPMComponent.java:1020)
at com.sap.pcuigp.xssfpm.wd.FPMComponent$FPM.attachComponentToUsage(FPMComponent.java:979)
at com.sap.pcuigp.xssfpm.wd.FPMComponent$FPMProxy.attachComponentToUsage(FPMComponent.java:1230)
at com.sap.pa.asr.procst.vac.vinit.VInitComp.onInit(VInitComp.java:200)
at com.sap.pa.asr.procst.vac.vinit.wdp.InternalVInitComp.onInit(InternalVInitComp.java:153)
at com.sap.pa.asr.procst.vac.vinit.VInitCompInterface.onInit(VInitCompInterface.java:161)
at com.sap.pa.asr.procst.vac.vinit.wdp.InternalVInitCompInterface.onInit(InternalVInitCompInterface.java:144)
at com.sap.pa.asr.procst.vac.vinit.wdp.InternalVInitCompInterface$External.onInit(InternalVInitCompInterface.java:220)
at com.sap.pcuigp.xssfpm.wd.FPMComponent.doProcessEvent(FPMComponent.java:614)
at com.sap.pcuigp.xssfpm.wd.FPMComponent.doEventLoop(FPMComponent.java:474)
at com.sap.pcuigp.xssfpm.wd.FPMComponent.wdDoInit(FPMComponent.java:218)
at com.sap.pcuigp.xssfpm.wd.wdp.InternalFPMComponent.wdDoInit(InternalFPMComponent.java:110)
at com.sap.tc.webdynpro.progmodel.generation.DelegatingComponent.doInit(DelegatingComponent.java:108)
at com.sap.tc.webdynpro.progmodel.controller.Controller.initController(Controller.java:215)
at com.sap.tc.webdynpro.progmodel.controller.Controller.init(Controller.java:200)
at com.sap.tc.webdynpro.clientserver.cal.ClientComponent.init(ClientComponent.java:429)
at com.sap.tc.webdynpro.clientserver.cal.ClientApplication.init(ClientApplication.java:357)
at com.sap.tc.webdynpro.clientserver.session.ApplicationSession.initApplication(ApplicationSession.java:670)
at com.sap.tc.webdynpro.clientserver.session.ApplicationSession.doProcessing(ApplicationSession.java:267)
at com.sap.tc.webdynpro.clientserver.session.ClientSession.doApplicationProcessingPortal(ClientSession.java:726)
at com.sap.tc.webdynpro.clientserver.session.ClientSession.doApplicationProcessing(ClientSession.java:662)
at com.sap.tc.webdynpro.clientserver.session.ClientSession.doProcessing(ClientSession.java:228)
at com.sap.tc.webdynpro.clientserver.session.RequestManager.doProcessing(RequestManager.java:152)
at com.sap.tc.webdynpro.clientserver.session.core.ApplicationHandle.doProcessing(ApplicationHandle.java:73)
at com.sap.tc.webdynpro.portal.pb.impl.AbstractApplicationProxy.sendDataAndProcessActionInternal(AbstractApplicationProxy.java:808)
at com.sap.tc.webdynpro.portal.pb.impl.AbstractApplicationProxy.create(AbstractApplicationProxy.java:227)
at com.sap.portal.pb.PageBuilder.updateApplications(PageBuilder.java:1240)
at com.sap.portal.pb.PageBuilder.createPage(PageBuilder.java:340)
at com.sap.portal.pb.PageBuilder.init(PageBuilder.java:538)
at com.sap.portal.pb.PageBuilder.wdDoInit(PageBuilder.java:177)
at com.sap.portal.pb.wdp.InternalPageBuilder.wdDoInit(InternalPageBuilder.java:150)
at com.sap.tc.webdynpro.progmodel.generation.DelegatingComponent.doInit(DelegatingComponent.java:108)
at com.sap.tc.webdynpro.progmodel.controller.Controller.initController(Controller.java:215)
at com.sap.tc.webdynpro.progmodel.controller.Controller.init(Controller.java:200)
at com.sap.tc.webdynpro.clientserver.cal.ClientComponent.init(ClientComponent.java:429)
at com.sap.tc.webdynpro.clientserver.cal.ClientApplication.init(ClientApplication.java:357)
at com.sap.tc.webdynpro.clientserver.session.ApplicationSession.initApplication(ApplicationSession.java:670)
at com.sap.tc.webdynpro.clientserver.session.ApplicationSession.doProcessing(ApplicationSession.java:267)
at com.sap.tc.webdynpro.clientserver.session.ClientSession.doApplicationProcessingStandalone(ClientSession.java:706)
at com.sap.tc.webdynpro.clientserver.session.ClientSession.doApplicationProcessing(ClientSession.java:660)
at com.sap.tc.webdynpro.clientserver.session.ClientSession.doProcessing(ClientSession.java:228)
at com.sap.tc.webdynpro.clientserver.session.RequestManager.doProcessing(RequestManager.java:152)
at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doContent(DispatcherServlet.java:56)
at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doPost(DispatcherServlet.java:47)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:390)
at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:264)
at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:347)
at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:325)
at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:887)
at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:241)
at com.sap.engine.services.httpserver.server.Client.handle(Client.java:92)
at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:148)
at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:33)
at com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java:41)
at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37)
at java.security.AccessController.doPrivileged(Native Method)
at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:100)
at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:170)
Caused by: com.sap.dictionary.runtime.DdException: Type com.sap.pa.asr.procst.model.procst.types.Asr_Withoutee does not exist
at com.sap.dictionary.types.mdi.util.ProviderUtil.createAbapTypeXmlMap(ProviderUtil.java:400)
at com.sap.dictionary.runtime.mdi.DataProvider.createSimpleTypeFromAbapType(DataProvider.java:586)
at com.sap.dictionary.runtime.mdi.DataProvider.getDataType(DataProvider.java:286)
at com.sap.dictionary.runtime.DdDictionary.getDataType(DdDictionary.java:95)
at com.sap.dictionary.runtime.DdBroker.getDataType(DdBroker.java:164)
at com.sap.dictionary.runtime.DdBroker.getSimpleType(DdBroker.java:170)
at com.sap.tc.webdynpro.services.datatypes.core.DataTypeBroker.getSimpleType(DataTypeBroker.java:242)
... 75 more
Please do let me know if anybody could help.
Regards,
RameshMaybe the user used for RFC connection either does not exist or is not granted access to the model data.
Best Regards,
Martin -
Implementing session handling in servlet controller
how to implementing session handling in servlet controller.
instead of writing isNew() in every jsp page i wanted to write in my central controller ,where each request is passing through controller. can any body give me the solutioni tried it it is failed because first time the request is coming to the controller.it checks for new since of it is a first request it is forwarded to the login page.how to avoid or skip the condition checking when the request is first time.
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