JCO Call

[Former Member]

Hi,

What is JCO Call. What are the methods there in the JCO Call. Explaine me with an example.

Thanks

Koteswara Rao

[Former Member]

Hi Koteswara,

Please go through the below link that has the details related to JCO.

https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/85a483cb-0d01-0010-2990-c5168f01...

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..

[Former Member]

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.