Problem in refreshing data model

Hi,
I am struggling in solving this issue for quite some time. I am developing a fusion web application using Jdeveloper 11.1.2.
I have 3 view objects groups,employees and dependents. All the three view objects have binding variables and view criteria. The three view objects are linked using view links. The following shows the structure of the application module.
Groups--------- binding variables: GrpID, GrpName
------Employees ---------- binding variables: EmpID,EmpName
---------Dependents---------------binding variables: DepID and DepName
Now Groups and Employees are linked using GrpEmpViewLnk. Employees and Dependents are linked using EmpDepViewLink.
I have a page which acts like a search form which has fields like GroupID, EmpId and DepID with corresponding buttons named "find" to look up information.
When I try to set the GrpId at Groups VO, the data model is populating correctly with the rite employees and dependents.
When I try to set the EmpID at Employees VO, the data model has incorrect data. I looked at the query to see whats happening. Along with setting the bind variables EmpID,EmpName for Employees VO, a bind variable from the view link EmpDepViewLink is also being passed. I don't have any idea of how to control the value that's being passed through the view link.
Could someone please help me in resolving this issue. I can provide more info on this issue.
Thanks!
Shai.

If you want to query Ephraim without dependency on a specific group, then you need to have it as an idependent go in your data model and not nested under group. Right now you'll be querying the empty in a specific group.

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Refreshing data model in AIR

This is probably one of those problems where you toil and
slave for hours to find out it is something stupid, but I am at my
wits end.
I am constructing an AIR App that uses a data model to
retrieve data from a php script that generates an XML string. The
mxml string for the model and the grid, respectively :
<mx:Model id="listingsDataGrid" source="
http://127.0.0.1/cmsbe/sql2xml.php"/>
<mx:DataGrid id="dg" width="100%" height="100%"
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I have this XML displayed in the data grid, but I am not able
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<mx:Button label="refresh"
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When I point my browser to the PHP script listed for the
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I have googled this to death with no results... any
suggestions? Thanks in advance!
If I need to post more/better info, just let me
know...

I don't know much about data models, but this is a common
problem in flex when it comes to using httpservices. Once an
httpservice with a method of get returns one result, it will not
refresh. The answer with httpservice is to change the method to
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Problem in creating DATA Model from SQL SERVER 2008 in BI PUBLISHER

Dear Team,
I connect BI Publisher with SQL SERVER 2008 But On creating Report on BI,when we create data model...dataset,
i select the tables but when i click on RESULT i am geting this error.
error--
[Hyperion][SQLServer JDBC Driver][SQLServer]Invalid object name 'DBNAME.DBO.TABLE'.
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Thanks,
Him
Edited by: h on Aug 22, 2011 6:31 PM

Hi David,
The things I said are not a fix for this problem.
If your RCU installation worked, then you do not have to worry about modifying the createfr.sql.
Edit:
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select     "table"."field"
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Hi SQL Developer users,
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Hi Csisz,
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Problem in Refreshing data

Hi Gurus,
i have added a new column in MD04.
Here my problem is while populating
the data in New column standard program
is Refreshing my data.
say ....
Avl Qty      USEX1 (new column)
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the above is expected output,
But currently my output is
Avl Qty      USEX1 (new column)
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sample Code
FZ_PROD = EMDEZX_USEX1 + IMDEZEXIT-MNG01(avl qty).
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for first loop it is fine but during second loop
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how can i achieve the above Plz Advice.
Thanks & Regards,
Vijaya.

I guess u r clearing the new column befor the code.
In that case the problem specified occurs.
Ex:
clear new.
FZ_PROD = new + IMDEZEXIT-MNG01(avl qty).
MOVE FZ_PROD TO EMDEZX_USEX1(new column)
output:
X = 0 + 2.       O/P is 2.
X = 0 + 1 = 1 O/P is 1.
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U check by giving a value other than 1, i.e, 5 or 6 to Avl Qty , it gives the same value as o/p.
dont clear the new column.
This is my guess.
Regards,
Veeranji Reddy P.

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Hi,
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thanks.

Hi,
This is the message I get back from the transports:
   Activate inactive runtime objects        25.04.2008 16:09:44    (0) Successfully Completed
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SELECT * FROM
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END
as gastype,
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Loose subversion password when using data modeler on the same svn reposit.

Hello,
We are on windows Xp sp3 with tortoire svn. Data modeler 3.0.0 665
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Problem :
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Regards.

Hi,
some of the Data Modeler svn-functionality is inherited from JDeveloper.
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See more here: SVN Credentials and JDeveloper 11g
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Hi,
I just completed a review of the u201CMulti-Dimensional Modeling with BIu201D from this link:
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/6ce7b0a4-0b01-0010-52ac-a6e813c35a84 and I have a quick question here:
On page 36 of this link, the author noted that
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1.
What is being referred here as u201CStandard Processu201D since document is on u201C u2026 modeling with BIu201D?
2.
It goes on to discuss u201CDesigning M:N relationships using a compound attributeu201C as a solution to the M:N relationship in a dimension.
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3.
Can you help explain the underlined cautions of the following guidelines for compound attributes (with examples if possible please):
u201CIf you can avoid compounding - do it!
Compound attributes always mean there is an overhead with respect to:
Reporting - you will always have to qualify the compound attributes within a query
Performance
Compounding always implies a heritage of source systems and just because it makes sense within the
source systems does not necessarily mean that it will also make sense in data warehousing.u201D
Thanks

Hi Amanda.......
In a dimension table, any number of semantically related dimension attributes are stored in a hierarchy (parent-child relationship as a 1:N relationship). If an M:N relationship exists between dimension attributes, they are normally stored in different dimension tables.
I checked the document.........
On page 36 of this link, the author noted that
u201CAccording to the standard process, color should be in the master data table for material, like material type. But this is not possible because the material is the unique key of the master data table. We cannot have one material with multiple colors in the master data table.u201D
1.
What is being referred here as u201CStandard Processu201D since document is on u201C u2026 modeling with BIu201D?
Here the first thing that I want to tell u is that............the diagram shown here is Classic Start Schema............since Extended Star Schema will never store Master data in Dimension tables.........it stores Masterdata in seperate Master data tables..........and nowadays..............Classic Star schema is obsolet.......Dimension table will only store Dimension id and SID......
Now the Standard process is that..........anything which is Describing a master data..........can be added as an Attribute of that master data.......
Suppose........Employee is the Masterdata.then Ph no can be one of the Attribute of this master data......
So this the Standard Process.........but this cannot be followed every time.........why........already explained.....
2.
It goes on to discuss u201CDesigning M:N relationships using a compound attributeu201C as a solution to the M:N relationship in a dimension.
What is the need to address this problem with compound attributes if characteristics in M:N relationships within a dimension, such as material and color, are not a problem in BI Data Model?
Bcoz ..........we use compounding Characteris tic to define the Master data uniquely.........and we load compounding Characteristic seoerately...which is independent of the Master data........ie......compounding Characteristic there is a seperate master data tables...........so ..........problem resolved......
3.
Can you help explain the underlined cautions of the following guidelines for compound attributes (with examples if possible please):
u201CIf you can avoid compounding - do it!
Compound attributes always mean there is an overhead with respect to:
Reporting - you will always have to qualify the compound attributes within a query
Performance
Compounding always implies a heritage of source systems and just because it makes sense within the
source systems does not necessarily mean that it will also make sense in data warehousing.u201D
For Compounding Characteristic............u hav to laod the Coumpoundede master data seperately..which is a overhead...........moreover while query execution......two tables will be accessd..which may result a performance issue.......Performance can be affected when compounded characteristics are used extensively, particularly when a large number of characteristics are included in a compounding. In most cases, the need to compound is discovered during data modeling.
Regards,
Debjani.........

How to install Data Modeler

Hi,
I downloaded Sqldeveloper data Modeler for Windows 32 bit including JRE. The data modeler has to run on windows 7 64 Bit as well as the sql developer runs
After unzipping this file I tried to start the datamodeler. When I starter the 32 Bit version I got the error:
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Unable to launch the Java Virtual Machine located at path ..\..\jdk\jre\bin\client\jvm.dll
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Please help me.
Regards
Siegwin

Hi Siegwin,
The download including JRE only includes a 32 bit JRE.
This jre includes a copy of file msvcr71.dll (in folder datamodeler\jdk\jre\bin). However it seems that in some circumstances the system does not find this file.
There have been several message threads about this, both for SQL Developer and for Data Modeler.
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or starting Data Modeler using the datamodeler.exe file in folder datamodeler/datamodeler/bin may help. (This brings up an additional command prompt window.)
Message Re: Oracle Data Modeler Installation guide may also be relevant.
To run Data Modeler in 64 bit mode, you will need to provide your own 64 bit JRE.
If you edit the file datamodeler64.conf (in folder datamodeler\datamodeler\bin) and remove the line starting with "Set JavaHome", next time you attempt to start 64-bit Data Modeler it should ask you for the location of the java.exe file in your 64 bit JRE.
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David

Data modeler - howto assign process/function to data model

Hello all
Problem path:
sd11 (data modeler)
i.e model: UNIMODELL (this is the model used as training in help.sap.com)
There is [functions/processes] button (F8)
When using UNIMODELL there is a process assigned to model and I can choose it (goes to Display Module: A.... screen)
But:
when I create my own data model -> when clicking [functions/processes] i get:
"No functions assigned" infrmation
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Thx4anyHelp
Mateusz

What method did you use?
If FK is created and not removed then no scope clause is added - no need for that.
It works for me:
CREATE TABLE TABLE_2
Column_2 REF StructuredType_1 ,
Column_3 REF StructuredType_1
ALTER TABLE TABLE_2
ADD ( SCOPE FOR ( Column_2 ) IS TABLE_1 )
ALTER TABLE TABLE_2
ADD ( SCOPE FOR ( Column_3 ) IS TABLE_3 )
table_1 and table_3 are of StructuredType_1
Philip

PowerPivot removed table replicated into the data model on refresh

Hey
I am facing the following problem which is absolutely persistent and annoying in nature. I am using a data model created with PowerPivot with connections to three different SQL servers and 25 tables. The bug is that every time I refresh my data, a table
that was initially added to the data model (and later removed) is replicated in equivalent number of tables that use this connection, which is currently around 12 tables, so I get 12 duplicates of the same unnecessary table on every refresh, named with the
name of the schema on the SQL server that is followed by a running number. Removing these from the data model on every refresh simply takes too much time on a daily basis. The additional undesired table which is created is what is defined in the SQL query
of the connection string of this connection.
I tried to solve this problem by zipping the Excel file and modifying this SQL statement present in the connection string in the connections.xml file in a way that it would not return anything, but this always leads into a corrupted workbook.
After encountering this I have managed to avoid this problem by making sure that the initial table I'm adding to the data model will remain in the model, but I really don't want to rebuild this current model. Is there any fix for this issue without
rebuilding the data model?
Thanks for all the help in advance!

I am using 64-bit Office 2013 with the recent SP1 upgrade and the included PowerPivot plug-in on a Windows 8.1 machine.
I always create the connection by using "From SQL server" then fill in the server and log in details and use a ready SQL statement that I have written by using SQL Server Management Studio to import the initial table. For all the preceding tables
using the same server and schema, I always select it from existing connections and just paste the SQL queries required for any additional tables to the "Write a query that will specify the data to import", rather than using the table import tool.
I am not sure if it could have any effect that I've been using the type connection "From SQL server" although the database is really running on Azure (there is a possibility to select From Other sources > Microsoft SQL Azure, but the functionality
seems the same).
I don't really understand what I should edit from the existing connections section. Just to clarify, apparently the Connection String parameters can be edited from PowerPivot, but not the Command Text which can be viewed from Excel Data > Connections
> Properties, but is shown in gray with a message "Some properties cannot be changed because this connection was modified using the PowerPivot add-in."
In the data model I am using two sets of identical tables, but connected to two different servers that are running a database 1:1 in structure. Initially the problem considered only the other of these, but I accidentally reproduced it by, again, editing
the SQL query in the table that was initially imported when that connection was created (PowerPivot > Design > Table Properties). Now when refreshing I get tables that are structured as in what the "Connection Text" part of the connection would
produce, which replicated for the equivalent amount of additional tables using the same connection, so now I'm getting 12 tables (the number of tables using the same connection) each named "*schemaname1* Query", "*schemaname1* Query2",
"*schemaname1* Query3" "*schemaname2* Query" and so on.
Personally I can definitely see a pattern here. If there isn't a table matching what has been specified in the "Command Text" that was described when the connection was created, then it for some reason runs this query anyway on every table that
is using the connection.

Powerpivot Error on Refresh -- "We couldn't get data from the data model..."

I'm using Excel 2013 and Windows 8.1. I have a spreadsheet I've been using for over a year, and I've just started getting this error message when I try to refresh the data.
"We couldn't get data from the Data Model. Here's the error message we got:
The 'attributeRelationship' with 'AttributeID' - 'PuttDistCat9' doesn't exist in the collection"
Any idea how I can fix this problem? I haven't changed anything related to that particular attribute. All the data is contained in separate sheets in the workbook, so there are no external sources of data.
Thanks.
Jean

Thanks for all the suggestions.
I found a slightly older version of the spreadsheet that still refreshes properly, so I don't think I have any issues with the version of Excel or Power Query. (I've had this same error before, and I believe I applied the hotfix at that time.)
I think this problem started after I updated a number of the date filters in the pivot tables. I haven't made any changes to the data model, and the only updates I've made were to add data (which I do all the time), and to change the date filters on
the pivot tables.
As suggested, I added a new pivot table querying one table (the table with the attribute that shows up in the error message), and it worked fine. I can also refresh this pivot table.
Then I tried adding a pivot table which went against several tables in the data model (including the table in question). The pivot table seemed to return that data properly. However, when I tried to refresh it, I got the same error message ("we
couldn't get data from the data model...").
Dany also suggested running the queries one at a time to see which one is in error. Without checking all the pivot tables, it appears that any which use the table "HolePlayedStrokes" generate the error (this is the table with the attribute
mentioned in the error message). Pivot Tables without that particular table seem to refresh OK. Unfortunately, that is the main table in my data model, so most of the pivot tables use it.
Any other suggestions? I'd be happy to send a copy of the spreadsheet.
Thanks for all the help.
Jean

External Data Refresh Failed. We cannot locate a server to load the workbook Data Model. ThisWorkBookDataModel

Hi All,
I have been trying to fix this for days now. I have tried solutions in many articles but to no avail. So while the error message is something you may have seen may times, I just can't find a solution in my case.
This is the error:
And in text just in case the image isn't viewable:
"External Data Refresh Failed. We cannot locate a server to load the workbook Data Model. We were unable to refresh one or more data connections in this workbook. The following connections failed to refresh: ThisWorkBookDataModel."
What is worse is I have checked the ULS (SharePoint Trace Logs), the Event Viewer Logs and the OWA Logs and I cannot find a specific error that would help pin point the problem.
Excel Workbook
So what am I doing? I have an Excel 2013 workbook and I create an "SQL Server" connection to the AdventureWorksDW database, add a pivot table and a pivot chart, test in in Excel and all works fine.
I save the Excel workbook to SharePoint 2013 and then select "Data" then "Refresh All Connections" and then I get the error in the picture above.
Even more puzzling is I have another Excel workbook that also has pivot tables and pivot charts in the AdventureWorksDW2012Multidimensional cube database in "SQL Analysis Services" and this works fine. Hmmm.
My Environment
My environment is Windows 2008 R2 Server, SharePoint 2013 with the April Service Pack1 and a separate server with OWA2013 SP1. It has an SQL Server 2008 R2 database which has been upgraded to SQL Server 2012.
Data Model Settings
In Excel Services this is set to my server name which is "server-name". As I do not have instances all I can enter is the server name. As this works everywhere else including the workbook outside of SharePoint I do not think this is the problem.
But I could be wrong.
Unattended Account
I have set this up for the PowerPivot Services App and Excel Services App.
ODC Connections in Excel
I have tried all 3 authentication modes, Windows, Secure Store ID and "None" which is the unattended account. I have not tried the other connection types, should I?
Not in WOPI
I am not in WOPI mode.
AD Accounts
I have added permissions in the SharePoint Services and SQL Server, and as they work in Excel outside of SharePoint, I do not think it is a permissions issue. I could be wrong of course, but the problem is in one of SharePoint, OWA, AD,
SQL Server, Excel, and Windows Server.
Isolate the Error
Below is a list of errors I think are relevant but they do not tell me much. The SharePoint logs are not really giving me an error that tells me what to do and where to do it, or even why it cannot refresh, (perhaps not noticeable by the untrained eye).
Problem with SQL Server Not Analysis Services
So my cube database in analysis services works fine in SharePoint/OWA but not the databases in sql server. This is my best clue but I have no idea what it means. Why would it work with an Analysis Services connection but not an "SQL Server" connection?
It Works Outside of SharePoint
If I run the excel worksheet outside of SharePoint all works fine. When inside OWA this is where the refresh error occurs.
Errors from Event Viewer on SharePoint Server using ULS Viewer
"Failed to create an external connection or execute a query. Provider message: There are no servers available or actively being initialized., ConnectionName: , Workbook:"
"Refresh failed for 'ThisWorkbookDataModel' in the workbook 'http://server...'. [Session: 1.V22.26itT0lx8piNFeqtuGVhN214.5.en-US5.en-US36.98c0e158-9113-46e9-850e-edda81d9ed1c1.A1.N User: 0#.w|ad\testuser1]"
And an error in the ULS under the "Data Model" category:
"--> Check Deployment Mode (server-name): Fail (Expected: SharePoint, Actual: Multidimensional)."
This last error, as it turned out, defined the problem concisely, although I was yet to work out what it meant in some detail.

I finally solved this myself (or should I say with the help of several key articles).
The refresh did not work because the database was not in "SharePoint Mode". Yes, SQL Server has modes, 3 of them in fact.
If you installed SharePoint to the default SQL instance which would be called <servername> then you cannot use this default instance for Excel 2013 workbooks in OWA 2013 because the refresh only works if the database is in SharePoint mode.
So what are these 3 modes? The Deployment Mode property in the msmdsrv.ini file has them as:
0 = Multidimensional mode (the default whenever you install SQL Server normally)
1 = PowerPivot for SharePoint mode
2 = Tabular mode mode
How do you know what mode you are in? That's easy, open SQL Studio Manager and connect to all your SQL database engine instances (ignore Analysis Services or SSRS as they are not database engines). If you only have the default instance then that is almost
definately in Multidimensional mode which is the default and what SharePoint installs its databases to.
You must have an instance called <servername>\POWERPIVOT. This instance is the "sharepoint mode" needed, and the default instance name when you install an SQL instance in this mode.
If you don't see <servername>\POWERPIVOT in SQL server then you are not in "sharepoint mode". It is more accurate to say, you do not have an instance that is in sharepoint mode. This is because you cannot simply switch modes on an SQL server.
You have to install a new instance in the required mode, thats the only way.
That's easy enough. Load up the SQL Server setup CD and run setup. Install a brand new instance and select "SQL Server PowerPivot for SharePoint" when you get there in the wizard.
Now you will have the default instance that stores all the SharePoint databases and that is in mode 0, and a new instance called <servername>\POWERPIVOT that is in mode 1. The "<servername>\POWERPIVOT" instance connection is what you
will use for Excel 2013 when rendering in OWA 2013.
You also need to ensure OWA 2013 is not in WOPI mode for Excel worksheets. See the last link below for more information about WOPI.
Next you should go to the Excel Service App in CA and click Data Model Settings and add the <servername>\POWERPIVOT instance.
Then you have to either turn off the firewall on the SQL server machine, or create an inbound rule on the Windows firewall to open the TCP port for the <servername>\POWERPIVOT instance:
1. Start Task Manager and then click Services to get the PID of the MSOLAP$InstanceName.
2. Run netstat –ao –p TCP from the command line to view the TCP port information for that PID.
Finally, you can now create Excel 2013 workbooks that run in OWA without refresh errors, as long as you are connecting to the <servername>\POWERPIVOT instance. Hooray.
REFERENCES
Look for the string "There are no servers available or actively being initialized" in this article:
http://blogs.msdn.com/b/analysisservices/archive/2012/08/02/verifying-the-excel-services-configuration-for-powerpivot-in-sharepoint-2013.aspx
Determine the server mode:
http://msdn.microsoft.com/en-au/library/gg471594(v=sql.110).aspx
Install the SharePoint PowerPivot instance (aka SharePoint mode)
http://msdn.microsoft.com/en-au/library/eec38696-5e26-46fa-bc83-aa776f470ce8(v=sql.110)
Open the port for the new SQL instance:
http://msdn.microsoft.com/en-us/library/ms174937(v=sql.110).aspx
Turn Off WOPI for Excel OWA
http://blogs.technet.com/b/excel_services__powerpivot_for_sharepoint_support_blog/archive/2013/01/31/powerpivot-for-sharepoint-browser-refresh-fails-data-refresh-not-supported-in-office-web-apps.aspx

JTable Refreshing problem for continuous data from socket

Hi there,
I am facing table refreshing problem. My table is filled with the data received from socket . The socket is receiving live data continuously. When ever data received by client socket, it notify table model to parse and refresh the data on specific row. The logic is working fine and data is refresh some time twice or some thrice, but then it seem like java table GUI is not refreshing. The data on client socket is continuously receiving but there is no refresh on table. I am confident on logic just because when ever I stop sending data from server, then client GUI refreshing it self with the data it received previous and buffered it.
I have applied all the available solutions:
i.e.
     - Used DefaultTableModel Class.
     - Created my own custem model class extend by AbstractTableModel.
     - Used SwingUtilities invokeLater and invokeAndWait methods.
     - Yield Stream Reader thread so, that GUI get time to refresh.
Please if any one has any idea/solution for this issue, help me out.
Here is the code.
Custom Data Model Class
package clients.tcp;
import java.util.*;
import javax.swing.table.*;
import javax.swing.*;
public class CustomModel extends DefaultTableModel implements Observer {
/** Creates a new instance of CustomModel */
public CustomModel() {
//super(columnNames,25);
String[] columnNames = {"Sno.","Symbol","BVol","Buy","Sale",
"SVol","Last","..","...","Total Vol...",
"..","High","..","Low","Change","Average","..."};
super.setColumnIdentifiers(columnNames);
super.setRowCount(25);
/*This method called by client socket when ever it recived data as line/record*/
public synchronized void update(Observable o, Object arg){
collectData(arg.toString());
/*This method used to parse, collect and notify table for new data arrival*/
public synchronized void collectData(String rec){
String validSymbol="";
System.out.println("collectDataRecord :-"+rec);
StringTokenizer recToken=new StringTokenizer(rec," ");
Vector rowVector=new Vector();
for(int i=0;i<25;i++){
validSymbol=(String)getValueAt(0,1);
if(rec.indexOf(validSymbol) != -1){
for(int j=0;recToken.hasMoreTokens();j++){
super.setValueAt(recToken.nextToken(),i,j);
//break;
Client Socket Class
package clients.tcp;
import java.io.*;
import java.net.*;
import java.util.*;
import javax.swing.*;
public class DataReceiver extends Observable implements Runnable{
private Socket TCPConnection = null;
private BufferedReader br = null;
private String serverName = "Salahuddin";
private int serverPort = 5555;
public DataReceiver()
public void setServerName(String name){
this.serverName=name;
public void setServerPort(int port){
this.serverPort=port;
//03-20-04 12:30pm Method to open TCP/IP connection
public void openTCPConnection()
try
TCPConnection = new Socket(serverName, serverPort);
br = new BufferedReader(new InputStreamReader(
TCPConnection.getInputStream()));
System.out.println("Connection open now....");
//System.out.println("value is: "+br.readLine());
}catch (UnknownHostException e){
System.err.println("Don't know about host: ");
}catch (IOException e){
System.err.println("Couldn't get I/O for "
+ "the connection to: ");
//03-20-04 12:30pm Method to receive the records
public String receiveData(){
String rec = null;
try
rec = br.readLine();
catch(IOException ioe)
System.out.println("Error is: "+ioe);
ioe.printStackTrace(System.out);
catch(Exception ex)
System.out.println("Exception is: "+ex);
ex.printStackTrace(System.out);
return rec;
public void run()
while(true)
String str=null;
str = receiveData();
if(str != null)
/*try{
final String finalstr=str;
Runnable updateTables = new Runnable() {
public void run() { */
notifyAllObservers(str);
SwingUtilities.invokeAndWait(updateTables);
}catch(Exception ex){
ex.printStackTrace(System.out);
System.out.println("Observer Notified...");*/
try{
Thread.sleep(200);
}catch(Exception e){
public synchronized void notifyAllObservers(String str){
try{
setChanged();
notifyObservers(str);
}catch(Exception e){
e.printStackTrace(System.out);
Regards,
Salahuddin Munshi.

use your code to post codes more easy to read, lyke this:
package clients.tcp;
import java.util.*;
import javax.swing.table.*;
import javax.swing.*;
public class CustomModel extends DefaultTableModel implements Observer {
/** Creates a new instance of CustomModel */
public CustomModel() {
//super(columnNames,25);
String[] columnNames = {"Sno.","Symbol","BVol","Buy","Sale",
"SVol","Last","..","...","Total Vol...",
"..","High","..","Low","Change","Average","..."};
super.setColumnIdentifiers(columnNames);
super.setRowCount(25);
/*This method called by client socket when ever it recived data as line/record*/
public synchronized void update(Observable o, Object arg){
collectData(arg.toString());
/*This method used to parse, collect and notify table for new data arrival*/
public synchronized void collectData(String rec){
String validSymbol="";
System.out.println("collectDataRecord :-"+rec);
StringTokenizer recToken=new StringTokenizer(rec," ");
Vector rowVector=new Vector();
for(int i=0;i<25;i++){
validSymbol=(String)getValueAt(0,1);
if(rec.indexOf(validSymbol) != -1){
for(int j=0;recToken.hasMoreTokens();j++){
super.setValueAt(recToken.nextToken(),i,j);
//break;
Client Socket Class

Problem in refreshing data model

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