Getting WD JCOConnection

Hello,
i have deploy a application on the J2EE WAS which is using JCO Connections for calling RFC.
Now i have seen that i can Maintain and create JCO Connection in WD Content Administrator.
Is it possible to access these JCO Connection by JCO Api?
thx
Mario
null

Hi,
suggest asking on the WD java forum:
Web Dynpro Java
Regards,
michal
<a href="/people/michal.krawczyk2/blog/2005/06/28/xipi-faq-frequently-asked-questions"><b>XI / PI FAQ - Frequently Asked Questions</b></a>

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Hi Anikumar!
Yes it is true! The webDynpro make it automaticaly.
I'm not clear with J2EE web application. I don't know how i should get the login parameter for my RFC calls.
I have try:
DestinationService dstserv =(DestinationService) ctx.lookup(DestinationService.JNDI_KEY);
RFCDestination dest =(RFCDestination) dstserv.getDestination("RFC", "test");
Properties destprop = dest.getDestinationProperties();
String user1="MYSAPSSO2";
String passwd1=pass;// pass is encrypted ticket;
destprop.setProperty("jco.client.user",user1);
destprop.setProperty("jco.client.passwd",passwd1);
JCO.Client cl = JCO.createClient(destprop);
cl.connect();
cl.ping();
cl.disconnect();
I also try
IWDJCOClientConnection ca = WDSystemLandscape.getJCOClientConnection("ModelData");
In the contentadministrator Modeldata Destination set to Ticket authentification and it works fine when i test it in webdynpro contentadministrator, but when i try to get the JCOConnection i get a SystemLandscapeException:Error while obtaining JCO connection.
I debugged it and i get a WDRuntimeException--->Nullpointerexception. It seems that the jco destination is not initialized at this time.
Maybe i understand something wrong.
Regards!

Deploy error!!!

Hi all,
I'm trying to deploy my webdynpro application and I got the following problem....
com.sap.tc.webdynpro.modelimpl.dynamicrfc.WDDynamicRFCExecuteException: Error connecting using JCO.Client: nullcom.sap.tc.webdynpro.modelimpl.dynamicrfc.WDDynamicRFCExecuteException: Error connecting using JCO.Client: null
Does anybody know about this kind of error?
Thanks,
Jesus.

Hi Jesus,
Please try printing the cause for the exception in your catch block using 'wdComponentAPI.getMessageManager().reportSuccess("ERROR::CAUSE ::"+e.getCause());'.
This might show you a message like 'jcoClientConnection couldn't be created' and 'Please assure that you have configured the RFC connections and/or logical System Name properly for this model'.
And from your previous post webdynpro application deploy error...', I understand that your jco has been created in the proper way. <b>If this is the case</b>, My Guess is :
Please check what kind of user authentication your jco for Application data (Model Data) uses. When you create a jco for Application Data, you can use the following methods for User Authentication :
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- Ticket
- User Mapping
- Client Ticket (About which I'm clueless)
If you are using Ticket or User Mapping, the created jco won't have any userid attached to it. So, you need to authenticate yourself while running the application. For that you need to set the 'authentication' to true for your application and provide a valid user name & password at run time.
If you are not familiar with setting the authentication for the application, these links may help you:
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http://help.sap.com/saphelp_webas630/helpdata/en/09/a4d6a674bc1d4a9e74abf81bed3ef6/content.htm
And if you are using User/Password for authentication and have given the correct credentials, and still if you get a 'jcoconnection error', then you can be pretty sure that your jco hasn't been created properly.
Hope this helps,
Best Regards,
Nibu.

Getting JCOConnection

Hello,
i have deploy a application on the J2EE WAS which is using JCO Connections for calling RFC.
Now i have seen that i can Maintain and create JCO Connection in WD Content Administrator.
Is it possible to access these JCO Connection by JCO Api?
thx
Mario

Hi Mario,
You can get a JCo Connection with the following line of code:
IWDJCOClientConnection jcoClientConn = WDSystemLandscape.getJCOClientConnection(jcoName);
where jcoName is a String that's the name of the Jco Connection as defined in the Content Administrator.
Once you have that you can access all the information about that connection.
For instance, in one of my apps, I need to change what JCo connection I'm using for one of my models depending on what value they select from a radio button group. So I get the connection using the line of code above, and then set my model to use that connection with the following line:
myModel.setJcoClient(jcoClientConn.getClient());
I hope that helps some.
-Jennifer

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I can not to get the PK and FK from Meta-Data Database of mysql-4.1.1a-alpha. Anyway I tried to do the
followihg
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2. set configuration Script support InnoDB Table Type as the follow in my.ini file.
[mysqld-nt]
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I wish the answer why? and the actually the second parameter of this parameter , as refer scheme name , the scheme name is ?
Thank you
import java.sql.*;
public class testMeta {
public testMeta() {
ResultSet rs=null;
String url = "jdbc:mysql://localhost:3306/testinnodb";
Connection con = null;
try{
Class.forName("org.gjt.mm.mysql.Driver");
}catch(ClassNotFoundException ex){
System.out.println(ex.getMessage());
try{
con = DriverManager.getConnection(url,"root","rootpwd");
prtS("getConnection complete");
DatabaseMetaData metaData = con.getMetaData();
Connection con2 = metaData.getConnection();
String type[] = new String[1];
type[0] = new String();
prtS("*************** GET Schemas ***************");
rs = metaData.getSchemas();
               while(rs.next()){
System.out.println("12345");
prtS("TABLE_CAT" + " : " + rs.getString(0));
prtS("TABLE_CAT" + " : " + rs.getString("TABLE_SCHEM "));
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prtS("*************** GET PRIMARY KEYS ***************");
rs = metaData.getPrimaryKeys(con.getCatalog(),null,"persons");
while(rs.next()){
prtS("TABLE_CAT" + " : " + rs.getString("TABLE_CAT"));
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prtS("PK_NAME" + " : " + rs.getString("PK_NAME"));
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rs = metaData.getExportedKeys(con.getCatalog(),null,"shirt");
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How i know the jdbc driver not compatible to this
mechanismBy reading the documentation tthat comes with your driver. Recent versions of the MySQL JDBC driver do support the getExportedKeys/ImportegKeys methods but the table needs to be crated as InnoDB.
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Getting WD JCOConnection

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