on 04-11-2007 2:17 PM
Hi,
What is JCO Call. What are the methods there in the JCO Call. Explaine me with an example.
Thanks
Koteswara Rao
Hi Koteswara,
Please go through the below link that has the details related to JCO.
For dynamic JCO creation
/people/anilkumar.vippagunta2/blog/2007/02/06/dynamic-jco-creation
Debugging an RFC call using JCO API
/people/tarun.telang2/blog/2005/10/01/debugging-a-rfc-call-using-jco-api
JCO Client Service
http://help.sap.com/saphelp_nw04/helpdata/en/36/5db440c97f3716e10000000a155106/frameset.htm
Hope these help,
Regards
Kiran..
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Hi,
JCO stands for JavaConnector and was originally developed by Arasoft.It is really meant for communication between ABAP stack and JAVA stack.When a NW JAVA stack communicates with ABAP stack inturn it does it thru JCO.
It has many methods in its JCO library.To get an idea you can see the following sample code-In which a BAPI is being called from JAVA environment.
import com.sap.mw.jco.*;
public class CallFunction extends Object {
public static void main(String args[]) {
CallFunction app = new CallFunction();
}
int count;
JCO.Client mConnection;
JCO.Repository mRepository;
String[] SAPInterfaces;
public CallFunction() {
try {
// Logon info
mConnection = JCO.createClient("500", // SAP client
"username", // userid
"password", // password
null, // language
"server name", // application server host name
"00"); // system number
mConnection.connect();
mRepository = new JCO.Repository("ARAsoft", mConnection);
} catch (Exception ex) {
ex.printStackTrace();
System.exit(1);
}
JCO.Function function = null;
JCO.Table codes = null;
// codes.firstRow();
try {
function = this.createFunction("BAPI_MATERIAL_GETLIST");
if (function == null) {
System.out.println(
"BAPI_MATERIAL_GETLIST" + " not found in SAP.");
System.exit(1);
}
codes = function.getTableParameterList().getTable("MATNRSELECTION");
codes.appendRows(2); // Add two rows to internal table
codes.setValue("I", "SIGN");
codes.setValue("EQ", "OPTION");
codes.setValue("P1001087", "MATNR_LOW");
codes.setValue("", "MATNR_HIGH");
codes.nextRow(); // Move onto next row
codes.setValue("I", "SIGN");
codes.setValue("EQ", "OPTION");
codes.setValue("P1001088", "MATNR_LOW");
codes.setValue("", "MATNR_HIGH");
mConnection.execute(function);
// JCO.Table returnTable1 =
// function.getTableParameterList().getTable("MATERIALSHORTDESCSEL");
// System.out.println(returnTable1);
// JCO.Table returnTable2 =
// function.getTableParameterList().getTable("MATNRLIST");
// System.out.println(returnTable2);
// Output result Material list table
System.out.println(
function.getTableParameterList().getValue("MATNRLIST"));
System.out.println(
function.getTableParameterList().getString("MATNRLIST"));
// System.out.println(
// function.getTableParameterList().getValue("MATERIALSHORTDESCSEL"));
//
// System.out.println(
// function.getTableParameterList().getString("MATERIALSHORTDESCSEL"));
// Output Selection table
System.out.println(
function.getTableParameterList().getValue("MATNRSELECTION"));
System.out.println(
function.getTableParameterList().getString("MATNRSELECTION"));
} catch (Exception ex) {
ex.printStackTrace();
System.exit(1);
}
}
public JCO.Function createFunction(String name) throws Exception {
try {
IFunctionTemplate ft =
mRepository.getFunctionTemplate(name.toUpperCase());
if (ft == null)
return null;
return ft.getFunction();
} catch (Exception ex) {
throw new Exception("Problem retrieving JCO.Function object.");
}
}
}
Thanks in advance.
RGds,Vasanth.
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