How to access BAPI in enterprise portal perspective?

Question

hi,I am venkat new to the portal.can anyone plz tel me how to access BAPI in enterprise portal perspective?is done through JCo or any other database connection?I hav not seen in System Landscape about BAPI access.plz give guidance about BAPI interface in enterprise portal.Hope u  will understand the question and answer the query.
thanx in advance.
Regards:
Venkataramana.

Answer 1

Guys,
Herez how you call a BAPI:
     public void buildConnection(){
          try {
                    System.out.println("**** DI2 *****");
                 //      Add a connection pool to the specified system
                 //    The pool will be saved in the pool list to be used
                 //    from other threads by JCO.getClient(SID).
                 //    The pool must be explicitely removed by JCO.removeClientPool(SID)
                   com.sap.mw.jco.JCO.addClientPool( SID,         // Alias for this pool
                                         10,          // Max. number of connections
                                         "040",       // SAP client
                                         "USERNAME",   // userid
                                         "PASSWORD",  // password
                                         "EN",        // language
                                         "IPADDRESS",// host name
                                         "40" );
                 //      Create a new repository
                 //    The repository caches the function and structure definitions
                 //    to be used for all calls to the system SID. The creation of
                 //    redundant instances cause performance and memory waste.
                   repository = com.sap.mw.jco.JCO.createRepository("MYRepository", SID);
                    JCO.Client client = null;
                    client = JCO.getClient(SID);
//                 Get a function template from the repository
                    //IFunctionTemplate ftemplate = repository.getFunctionTemplate("BAPI_CUSTOMER_GETDETAIL2");
                    IFunctionTemplate ftemplate = repository.getFunctionTemplate("YGGLB_BAPI_YGGLB9PRK_PRKDOCU");
//                 Create a function from the template
                    JCO.Function function = ftemplate.getFunction();
//                 Get import (of Function Module) "Parameter list"
                    JCO.ParameterList input = function.getImportParameterList();
//                 Set inputs for import parameters
                    //input.setValue("0000009000", "CUSTOMERNO");
                    //input.setValue("0248","COMPANYCODE");
//                 Get import (of Function Module) "Structure list".
                   //JCO.Structure importStructure = function.getImportParameterList().getStructure("CUSTOMERADDRESS");
                    JCO.Structure importStructure = function.getImportParameterList().getStructure("IM_DOCUMENTHEADER");
//                 Set values for import parameters (of Function Module) "Structure list"                     
                    importStructure.setValue( "SA", "DOC_TYPE" );
                    importStructure.setValue( "20080910", "PSTNG_DATE" );
                    importStructure.setValue( "20080910", "DOC_DATE");
                    importStructure.setValue( "BHARDWS", "USERNAME" );
                    importStructure.setValue( "2008", "FISC_YEAR" );
                    importStructure.setValue( "FRE1", "COMP_CODE" );
//                 Get import (of Function Module) "Table list - 1".
                    JCO.Table orderPartners = function.getTableParameterList().getTable("TBL_ACCOUNTGL");
//                 Set values for import parameters (of Function Module) "Table list - 1"
                    //Append Row -1
                    orderPartners.appendRow();
                   orderPartners.setValue("0000000001", "ITEMNO_ACC" );
                     orderPartners.setValue("0000400100", "GL_ACCOUNT" );
                    orderPartners.setValue("H", "DE_CRE_IND" );
                    orderPartners.setValue( "ANYTHING", "ITEM_TEXT" );
                    //orderPartners.setValue( "AG", "PROFIT_CTR" );
                    orderPartners.setValue( "AIG0000007", "COSTCENTER" );
                    //Append Row -2
                    orderPartners.appendRow();
                   orderPartners.setValue("0000000002", "ITEMNO_ACC" );
                    orderPartners.setValue("0000400100", "GL_ACCOUNT" );
                    orderPartners.setValue("S", "DE_CRE_IND" );
                    orderPartners.setValue( "NOTHING", "ITEM_TEXT" );
                    //orderPartners.setValue( "AG", "PROFIT_CTR" );
                    orderPartners.setValue( "AIG0000007", "COSTCENTER" );
//                 Get import (of Function Module) "Table list - 2".
                    JCO.Table orderItems = function.getTableParameterList().getTable("TBL_CURRENCYAMOUNT");
//                 Set values for import parameters (of Function Module) "Table list - 2"
                    //Append Row -1
                    orderItems.appendRow();
                   orderItems.setValue("0000000001", "ITEMNO_ACC" );
                    orderItems.setValue("USD", "CURRENCY" );
                    orderItems.setValue( "2000", "AMT_DOCCUR" );
                    //Append Row -2
                    orderItems.appendRow();
                   orderItems.setValue("0000000002", "ITEMNO_ACC" );
                    orderItems.setValue("USD", "CURRENCY" );
                    orderItems.setValue( "2000", "AMT_DOCCUR" );
//                 Execute client
                    client.execute(function);
//******************Start to work on fetching values now********************************
//                 Get export (of Function Module) "Structure list".
                    /*JCO.Structure returnStructure = function.getExportParameterList().getStructure("CUSTOMERADDRESS");
                    JCO.Structure returnStructure2 = function.getExportParameterList().getStructure("CUSTOMERGENERALDETAIL");
                    returnStructure.getString("NAME");
                    returnStructure2.getString("ENTERED_BY");*/
//                 Get export (of Function Module) "Table list"./// Create a new template if fetching table data from a different function module than above
                    //IFunctionTemplate ftemplateTable = repository.getFunctionTemplate("BAPI_CURRENCY_GETLIST");
                    //JCO.Function functionTable = ftemplateTable.getFunction();
                    //client.execute(functionTable);
                    JCO.Table table_return = function.getTableParameterList().getTable("RETURN");
                    Vector tbl = new Vector();
                    Vector row = new Vector();
                    Vector colNames = new Vector();
                    //Loop over all rows
                    do {
                    //Loop over all columns in the current row and add all those colums values to the current row
                    for (JCO.FieldIterator e = table_return.fields();
                         e.hasMoreElements();
                         JCO.Field field = e.nextField();
                         row.add(field.getString());
                         System.out.println(field.getName() + ":\t" + field.getString());
                         } // end for
                         //Add this newly built row to the table     
                         tbl.add(row);
                         } while (table_return.nextRow());
                         table_return = null;
                         table_return = function.getTableParameterList().getTable("RETURN");
                         table_return.nextRow();
                         for (JCO.FieldIterator e = table_return.fields();
                         e.hasMoreElements();
                         JCO.Field field = e.nextField();
                         colNames.add(field.getName().toString());
                    //DefaultTableViewModel dtvModel = new DefaultTableViewModel(tbl, colNames);
                    //beanObj.setModel(dtvModel);
                         System.err.println("getting value for you from session in Get Data 1:-");
                         JCO.releaseClient(client);
                    //     return dtvModel;
               catch (JCO.Exception ex) {
                 System.out.println("Caught an exception: \n" + ex.getMessage());
               }catch (Exception e){
                    System.out.println("Final Message" + e.getMessage());