Components of SAP Communication Technology

Basic Technical Concepts

Example Applications: Synchronous Communication

Application Examples: Asynchronous Communication

Application Examples: Communication with Non-ABAP Technologies

Classic SAP Technologies (ABAP)

RFC

RFC Basics

RFC Interface

RFC Communication Scenarios

RFC Destinations

RFC System Fields

RFC Authorizations

Code Pages

Maintaining Trust Relationships between SAP Systems

RFC Administration

Configuration of System Resources for RFC

RFC Resources on the Application Server

Monitoring RFC Resources on the Application Server

Configuring the SAP System for Parallel RFCs

Dynamically Configuring RFC Quotas

rdisp/rfc_check

rdisp/rfc_use_quotas

rdisp/rfc_max_queue

rdisp/rfc_max_login

rdisp/tm_max_no

rdisp/rfc_max_own_login

rdisp/rfc_min_wait_dia_wp

rdisp/rfc_max_own_used_wp

rdisp/rfc_max_comm_entries

rdisp/max_comm_entries

rdisp/max_arq

rdisp/rfc_max_wait_time

Calculating Resources for Asynchronous and Transactional RFC

Local Check

Detailed Check

Triggering the RFC Client Resource Check

Problems with RFC Resource Assignment

Limit Values for Resource Allocation for Asynchronous RFC

Configuring Resources for bgRFC

Checking RFC Authorizations

Maintaining Remote Destinations

Displaying, Maintaining, and Testing Destinations

Connection Types

Entering Destination Parameters

Technical Settings

Logon and Security

Settings for Code Pages

Preconfigured Code Pages

Special Options

Maintaining Group Destinations

Maintaining Trust Relationships between SAP Systems

Analyzing RFC Statistical Data

Monitoring tRFC

Writing RFC Programs in ABAP

Calling RFC Function Modules in ABAP

Introduction

RFC Calls

Parameter Handling in Remote Calls

Calling Remote Functions Locally

Calling Remote Functions Back

RFC Call Restrictions

Characteristics Using Unicode

RFC Exceptions

Class-Based RFC Exceptions

Class-Based RFC Exceptions

Semantic Considerations for Classic Exceptions

Class-Based Exceptions in Asynchronous RFC

Classic RFC Exceptions

Usnig Pre-Defined Exceptions for RFC

Exceptions That Cannot Be Handled

RFC Variants

Synchronous RFC (sRFC)

Asynchronous RFC (aRFC)

Call Properties of Asynchronous RFCs

Receiving Results from an Asynchronous RFC

Keeping the Remote Context

Parallel Processing with Asynchronous RFC

CALL FUNCTION - STARTING NEW TASK

RECEIVE

WAIT UNTIL

aRFC Programming Example

Transactional RFC (tRFC)

CALL FUNCTION - IN BACKGROUND TASK

Queued RFC (qRFC)

Writing Remote Function Modules in ABAP

Steps for Implementing Remote Function Modules

Programming Tips

Debugging Remote Function Modules

Displaying, Maintaining, and Testing Destinations

Background Communication

Queued Remote Function Call (qRFC)

qRFC Communication Model

qRFC Outbound Queue

qRFC Inbound Queue

qRFC with Outbound and Inbound Queue Process Flow

qRFC Administration

Authorizations for Administering qRFC

Outbound Queue Administration

The QOUT Scheduler

Configuring System Resources for QOUT Scheduler

Registering/Deregistering a Destination

Optimize performance

Monitoring the Outbound Queue

Restarting Blocked Queues

Testing the qRFC Connection

Inbound Queue Administration

QIN Scheduler

Configuring System Resources for QIN Scheduler

Inbound Processing Details

Executing qRFC Calls Locally

Registering the Inbound Queue

Monitoring the Inbound Queue

Checking Queue Status

Specifying Logon Data for RFC Destinations

Display Management Data

qRFC Programming

qRFC Design

qRFC with Outbound Queue

Transferring Queue Names

qRFC with Inbound Queue

Transferring Queue Names to the Inbound Queue

qRFC Variants

Update Task Behavior

Mixed Mode

NOSEND Scenario

Using qRFC with the RFC Library

qRFC API

qRFC API for the Outbound Queue

qRFC API for the Inbound Queue

qRFC API: Example Program

bgRFC (Background Remote Function Call)

bgRFC Architecture

bgRFC Configuration

Creating a Supervisor Destination

Creating Inbound Destinations

bgRFC Scheduler: System-Specific Settings

bgRFC Scheduler: Application Server-Specific Settings

bgRFC Scheduler: Destination-Specific Settings

bgRFC Administration

bgRFC Authorizations

Authorization Object S_BGRFC

Debug Authorizations for bgRFC

Troubleshooting and Monitoring

bgRFC Monitor

Debugging bgRFC Units

Debugging Using the bgRFC Monitor

Debugging with External Breakpoints

Migration

Outbound Scenarios

Inbound Scenarios

bgRFC Programming

API of bgRFC Type t and bgRFC Type q

Calling a Function Module

Creating a Destination Object and Unit Objects

Manipulating a Background Unit

Using Queues to Lock and Unlock Units

RFC Client-Side Runtime Control

RFC Server-Side Runtime Control

New Data Types

Exception Handling

Examples for Inbound and Outbound Processing

Locking a bgRFC Type t Unit

Locking a Queue

Filling Multiple Units in Parallel

Local Data Queue (LDQ)

LDQ: Administration and Monitoring

LDQ Monitor

LDQ Programming

LDQ: Overview and Architecture

Class Description

Classes in LDQ API (”Write”)

Classes in the LDQ API - "Read"

Examples for LDQ API "Write" and "Read"

LDQ API "Write"

LDQ API "Read"

"Read" with Initial Confirm and Forecast

Repeated Read-and-Confirm Cycles

RFC API: Classical & NetWeaver

Classical RFC SDK

Features in Detail

Contents of the classical RFC SDK

Compiling and Linking RFC Programs

The SAPRFC.INI File

Introduction

Examples

Possible Parameters

Error Handling

Debugging

Error Handling in ABAP

Error Handling in RFC Server Programs

More Information in Error Cases

Call-Back from an ABAP Function Module

Call-Back from an RFC Server Program

tRFC between SAP and External Systems

Transactional RFC Client Programs

Transactional RFC Server Programs

RFC and SAProuter

Introduction to SAProuter

RFC Client Program and SAProuter

Starting an RFC Server Program Via SAProuter

Using the Registering Feature

Program Start by Application Server

Program Start by SAP Gateway

Program Start by SAPGUI

RFC Between External Programs

Using A Local sideinfo File

Using the saprfc.ini File

Platform-Specific Features of the RFC API

OS/2

SAP-Based UNIX Platforms

Windows 3.x

Windows NT/95

Programming with the RFC API

Technical Description

Supported Data and Transfer

Basic Functionality

Components of the RFC API

RFC Client Programs

Introduction to RFC Client Programs

Establishing an RFC Connection to R/2 Systems

Programming Example of Working With Local sideinfo File

Programming Example of Working Without Local sideinfo File

Programming Example of Working With saprfc.ini File

Establishing an RFC Connection to SAP Systems

Programming Example of Working With Local sideinfo file

Programming Example of Working With saprfc.ini File

Programming Example of Working Without Local sideinfo File

Load Balancing

Programming Examples

RFC Using the ABAP Debugger

Remote Function Calls Using SAPGUI

RFC Server Programs

Introduction to RFC Server Programs

Registering Server Programs with the SAP Gateway

Programming Examples

RFC Server Program Working With RfcDispatch

RFC Server Program Working With RfcDispatch and RfcListen

RFC Server Programs Sending/Receiving Internal Tables

Establishing an RFC Connection from an R/2 System

Establishing an RFC Connection from an SAP System

Passing Parameters

Writing an RFC Function in C

Using Multiple-Client Server Programs

Classical RFC SDK Reference

Classical RFC API Data Types

Function Reference

NetWeaver RFC SDK

Introduction

Architecture

Data Processing and Transfer

Security Issues

Contents of the NW RFC SDK

Administration

Supported Platforms

The SAPNWRFC.INI File

Examples

Parameter Overview

RFC API and SAProuter

RFC Client Program and SAProuter

Starting an RFC Server Program Via SAProuter

Using the Registering Feature

Program Start by Application Server

Program Start by SAP Gateway

Programming with the RFC API

Working with the NW RFC SDK Files

Getting Connected

Passing Parameters

RFC Client Programs

Calling a Function in SAP Systems

Starting a SAP GUI

Passing Structures and Tables

Executing a Call-Back from an ABAP Function Module

Load Balancing

RFC Server Programs

Establishing an RFC Connection from an SAP System

Registering Server Programs on the SAP Gateway

RFC Server Programming Example

Executing a Call-Back from an RFC Server Program

tRFC between SAP and external Systems

Transactional RFC Client Programs

Transactional RFC Server Programs

Error Handling

Debugging

Error Handling in ABAP

Error Handling in RFC Server Programs

NetWeaver RFC SDK Reference

NetWeaver RFC API Handles, Structures, Enumerations

RFC API Handles

handle RFC_HANDLE

handle RFC_TYPE_DESC_HANDLE

handle RFC_STRUCTURE_HANDLE

handle RFC_FUNCTION_DESC_HANDLE

handle RFC_FUNCTION_HANDLE

handle RFC_TABLE_HANDLE

handle RFC_TRANSACTION_HANDLE

RFC API Enumerations

enum RFCTYPE

enum RFC_DIRECTION

enum RFC_RC

RFC API Structures

struct RFC_ERROR_INFO

struct RFC_CONNECTION_PARAMETER

struct RFC_PARAMETER_DESC

struct RFC_FUNCTION_DESC

struct RFC_FIELD_DESC

struct RFC_STRUCTURE_DESC

struct RFC_ATTRIBUTES

NetWeaver RFC API Functions

Administrative Functions

RfcInit

RfcSetTrace

Connection Handling

RfcCloseConnection

RfcGetConnectionAttributes

RFC Client Functions

RfcOpenConnection

RfcOpenClient

RfcInvoke

RFC Server Functions

RfcStartServer

RfcRegisterServer

RfcListenAndDispatch

RfcInstallServerFunction

RfcInstallGenericServerFunction

Transactional Functions

RfcGetTransactionID

RfcCreateTransaction

RfcInvokeInTransaction

RfcSubmitTransaction

RfcConfirmTransaction

RfcDestroyTransaction

RfcInstallTransactionHandlers

Function-Handling Functions

RfcInvoke

RfcSetFunctionDesc

RfcGetFunctionDescHandle

RfcCreateFunction

RfcDestroyFunction

RfcGetParameterValue

RfcSetParameterValue

RfcSetParameterActive

RfcGetFieldValue

RfcSetFieldValue

Table-Handling Functions

RfcCreateTable

RfcCloneTable

RfcDestroyTable

RfcAddNewRow

RfcInsertNewRow

RfcAddRow

RfcAppendRow

RfcAppendNewRow

RfcInsertRow

RfcDeleteRow

RfcDeleteCurrentRow

RfcDeleteAllRows

RfcMoveToFirstRow

RfcMoveToLastRow

RfcMoveToNextRow

RfcMoveTo

RfcMoveToPreviousRow

RfcGetCurrentRow

RfcGetRowCount

RfcGetRowType

Structure-Handling Functions

RfcSetStructureDesc

RfcGetStructureDescHandle

RfcGetStructureDes

RfcCreateStructure

RfcCloneStructure

RfcDestroyStructure

Field-Handling Functions

RfcGetChars

RfcGetNum

RfcGetDate

RfcGetTime

RfcGetString

RfcGetBytes

RfcGetXString

RfcGetInt

RfcGetInt1

RfcGetInt2

RfcGetFloat

RfcGetDecF16

RfcGetDecF34

RfcGetStructure

RfcGetTable

RfcGetStringLength

RfcSetChars

RfcSetNum

RfcSetDate

RfcSetTime

RfcSetString

RfcSetBytes

RfcSetXString

RfcSetInt

RfcSetInt1

RfcSetInt2

RfcSetFloat

RfcSetDecF16

RfcSetDecF34

RfcSetStructure

RfcSetTable

RfcDescribeFunction

RfcDescribeTable

Metadata and Repository Functions

RfcGetFunctionDesc

RfcGetCachedFunctionDesc

RfcAddFunctionDesc

RfcXXXTypeDesc()

RfcCreateTypeDesc

RfcAddTypeField

RfcSetTypeLength

RfcGetTypeName

RfcGetFieldCount

RfcGetFieldDescByIndex

RfcGetFieldDescByName

RfcGetTypeLength

RfcDestroyTypeDesc

RfcCreateFunctionDesc

RfcAddParameter

RfcEnableBASXML

RfcGetFunctionName

RfcGetParameterCount

RfcGetParameterDescByIndex

RfcGetParameterDescByName

RfcIsBASXMLSupported

RfcDestroyFunctionDesc

RfcGetRcAsString

RfcGetTypeAsString

RfcGetDirectionAsString

IDoc Interface/ALE

BAPI

General Introduction to BAPIs (CA-BFA)

BAPI User Guide CA-BFA)

BAPI Programming Guide (CA-BFA)

Communication Between ABAP and Non-ABAP Technologies

SAP Business Connector

SAP BC Functions

SAP BC Architecture

SAP BC Routing

SAP Java Connector

SAP JCo Funktionen

SAP JCo Application Scenarios

SAP JCo Scenario: Java/ABAP Communication in the Application Ser

SAP JCo and the VM Container

Managing Work Processes in the VM Container

In-Process and Out-of-Process Communication

Logging and Tracing for Using SAP JCo with VMC

Profile Parameters for Logging and Tracing

SAP JCo Scenario: SAP BC

SAP JCo Scenario: Online Invoice

SAP JCo Configuration

SAP JCo Standalone Version

SAP JCo Architecture (Standalone Version)

SAP JCo Installation

SAP JCo Migration 2.x-3.0 (Standalone)

General Coding Changes

Replacing JCo Classes

Adapting Connection Management

Stateful Connections

Exception Handling

Changes to the Metadata Model

Server Adaptations

SAP JCo Client Programming

Client Programming SAP JCo 2.x

Establishing a Connection to an SAP Server

Direct Connections

Open Connection

Calling a Function and Closing a Connection

Result of the Function Call

Example Program Connect1

Connection Pools

Creating a Connection Pool

Utility Class OrderedProperties

Acquiring and Releasing a Connection

Example Program Connect2

The SAP JCo Repository

Creating a Repository

Creating JCO.Function Objects

Executing Functions

Mapping of Java and ABAP Data Types

Type-Specific Getter Methods

Access to Tables

Setting Scalar Import Parameters

Example Program BAPI1

Table Manipulation

Example Program BAPI2

The Class JCO.Field

Deactivating Parameters

Exception Handling

Synchronization

Debugging

Client Programming SAP JCo 3.0

Establishing a Connection to an SAP Server

Defining Destinations

Establishing a Connection

Executing Stateful Calls

Executing Functions

Starting SAP GUI

Access to Tables

Setting Scalar Import Parameters

Using Multi Threading

Example Program JCo Client

The SAP JCo Repository

Setting up a Repository

Creating JCo Function Objects

Mapping of ABAP and Java Data Types

Type-Specific Getter Methods

Table Manipulation

Interface JCoField

Deactivating Parameters

Exception Handling

SAP JCo Server Programming

Server Programming SAP JCo 2.x

Inbound RFC Connection (from the SAP System)

Java Program for Establishing a Server Connection

Server Connection to a Unicode Backend System

Exception Listener

Server State Change Listener

Processing an ABAP Call

tRFC Call

Server Programming SAP JCo 3.0

Inbound RFC Connection (from the SAP Server)

Java Program for Creating a Server Connection

Exception Listener

Monitoring Server Connections

Processing an ABAP Call

Processing a tRFC/bgRFC Call

Example Program JCo Server

StatefulCalls

SAP Java Resource Adapter

SAP JRA for SAP Java Applications

SAP JRA Architecture

SAP JRA Configuration

SAP JRA Configuration: Procedure

Parameters for SAP JRA Configuration

Managing Calls from Multiple SAP Systems

SAP JRA Development Guidelines

SAP JRA Configuration on the Application Server Java

Client Programming Model

Transactions for the Client Programming Model

LocalTransaction

UserTransaction

Container Managed Transaction

Security for the Client Programming Model

BasicPassword

Kerbv5 (SSO)

DefaultAuthentication

Application Managed Authentication

Secure Network Connection (SNC)

Server Programming Model

Callback

Stateful Communication

Security for the Server Programming Model

SSO

SNC

Handling Records

Exception Handling

Facades and Compilation

IDoc Support for Java Applications

Example Program IDoc Client

Example Program IDoc Server

Internet Communication Framework

Architecture

Server Architecture

Client Architecture

Classes and Interfaces for the Server Role

IF_HTTP_SERVER

Attributes

Constants

Methods

IF_HTTP_RESPONSE and IF_HTTP_REQUEST

Methods for IF_HTTP_RESPONSE and IF_HTTP_REQUEST

IF_HTTP_ENTITY

Attributes for IF_HTTP_ENTITY

IF_HTTP_EXTENSION

Attributes

Constants for Describing the Control Flow

Constants for Describing Lifetime Control

Methods

IF_HTTP_UTILITY

Methods for Interface IF_HTTP_UTILITY

Classes and Interfaces for the Client Role

Interface IF_HTTP_CLIENT

Attributes

Constants

Methods

ICF Administration

Server Function Administration

Authorizations

Authorization Object S_ICF

Authorization Object S_ICF_ADM

Authorization Object S_ICFREC

Restricting Authorizations for Transaction SICF

Determining Authorizations in the Target System

Client Function Administration

Establishing a Connection Using a Destination (SM59)

Parallel Requests

Configuring a Proxy

Error Handling and Monitoring

Fehleranalyse: Vorgehen

External Debugging

External Debugging under Load Distribution

Traces

Parsing URLs

ICF Recorder

Activate Recording

Displaying and Processing Entries

Authorization Object S_ICFREC

Maintaining the ICF Profile Parameters

Managing Error Information

Performance Measurements

Troubleshooting Using Central Monitoring Functions

Statistical Data for RFC and ICF

Development

Server-Side Development

HTTP Request Handler

Developing a HTTP Request Handler

Creating an HTTP Request Handler

Accessing Header Fields

List of the Pseudo Header Fields

Accessing Form Fields

Accessing Cookies

Accessing HTTP Body Data

Accessing HTTP Multipart Data

Stateless/Stateful Communication

Terminating a Session

Code Page in ICF

Compression Techniques

Creating and Configuring ICF Services

Create Service

Maintaining Logon Procedures

Logon Checks: Overview

Standard Logon Order

Alternative Logon Order

Logon Using Service Data

Logon with SSL Certificate

Logon Using Basic Authentication.

Logon via SAML

Specifying the Client

Determining the Logon Language

Defining Service Data

HTTP Load Distribution

Defining Security Requirements

Setting Up Error Pages

Format and Parameters of the Error Document

Inserting an HTTP Request Handler

Activating and Deactivating ICF Services

Creating Virtual Hosts

Virtual Hosts: Application Example

Internal Aliases

External Aliases

Testing the HTTP Request Handler

Transporting ICF Services

Client-Side Development

Example program: Executing an HTTP Request

Parallel Processing Requests

Redirecting Requests

SOAP Framework

Web Service Technologies in the Application Server

Beispiel: SOAP Message

Example: WSDL File