Book Image

SAP ABAP Advanced Cookbook

By : Rehan Zaidi
Book Image

SAP ABAP Advanced Cookbook

By: Rehan Zaidi

Overview of this book

ABAP (Advanced Business Application Programming) is SAP's proprietary 4th Generation Language (4GL). SAP core is written almost entirely in ABAP.ABAP is a high level programming language used in SAP for development and other customization processes."SAP ABAP Advanced Cookbook"ù covers advanced SAP programming applications with ABAP. It teaches you to enhance SAP applications by developing custom reports and interfaces with ABAP programming. This cookbook has quick and advanced real world recipes for programming ABAP.It begins with the applications of ABAP Objects and ALV tips and tricks. It then covers Design Patterns and Dynamic Programming in detail.You will also learn the usage of quality improvement tools such as transaction SAT, SQL Trace, and the Code Inspector.Simple transformations and its application in Excel Downloading will also be discussed, as well as the newest topics of Adobe Interactive Forms and the consumption and creation of Web services. The book comes to an end by covering advanced usage of Web Dynpro for ABAP and the latest advancement in Floorplan Manager.

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SAP ABAP Advanced Cookbook
Rehan Zaidi
Dec, 2012 | 316 pages
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Table of Contents (22 chapters)
SAP ABAP Advanced Cookbook
SAP ABAP Advanced Cookbook
Credits
Credits
About the Author
About the Author
About the Reviewers
About the Reviewers
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
ABAP Objects
ABAP Objects
Introduction
Creating a shared memory object
Creating a persistent object
Creating classes based on factory methods
Creating classes based on singleton design pattern
Creating classes based on adapter pattern
2
Dynamic Programming
Dynamic Programming
Introduction
Using field symbols and data references to print database table contents
Applying dynamic Open SQL
Dynamic program generation
3
ALV Tricks
ALV Tricks
Introduction
Setting ALV columns as key columns and making zero amount appear as blank
Removing columns from display and layout
Enable Adding Layout toolbar buttons
Adding Hotspot to columns
Adding your own buttons to ALV toolbar
Adding checkboxes to columns
4
Regular Expressions
Regular Expressions
Introduction
Using regex as an IF statement
Removal of characters from a string
Converting date into internal date type
Validation of format (telephone number)
Removing repeated words from text string
Inserting commas in an amount string
Removing comments from program code
Interpreting HTML stream
5
Optimizing Programs
Optimizing Programs
Introduction
Using transaction SAT to find problem areas
Creation of secondary indexes in database tables
Adding hints in SELECT clause
Secondary indexes for internal tables
Hashed table for single read access
Replacing for all entries constructwith Ranges
6
Doing More with Selection Screens
Doing More with Selection Screens
Introduction
Adding tabstrips and listboxes to report selection screens
Adding toolbar buttons on selection screen
Changing screen fields on radio button selection
Taking desktop folder and filename as input
Coding search help exits for creating better F4 helps
7
Smart Forms – Tips and Tricks
Smart Forms – Tips and Tricks
Introduction
Toggle on/off the Microsoft Word text editor
Using background pictures and print preview
Using folder options for page protection
Printing several forms in one spool request
Converting Smart Forms to PDF output
Applying sorting and subtotaling to table fields
8
Working with SQL Trace
Working with SQL Trace
Introduction
Carrying out SQL trace
Generating and interpreting the trace result
Carrying out restricted trace
Filtering unwanted trace result entries
Summarizing a SQL list and viewing table-related information
Quickly finding the data source of a screen field
Finding the data source of a field's hit list
9
Code Inspector
Code Inspector
Introduction
Carrying out quick code inspection
Carrying out a full-fledged inspection
Carrying out database-specific performance checks
Suppressing messages using pseudo comments
Searching for ABAP statement patterns and tokens within code
Creating your own Code Inspector checks
10
Simple Transformations
Simple Transformations
Introduction
Creating simple transformations
Creating transformations for structures and calling them in programs
Creating transformations for internal tables
Generating transformations for dictionary table types
Downloading into Excel made easy using simple transformations
11
Sending E-mail Using BCS Classes
Sending E-mail Using BCS Classes
Introduction
Creating a simple e-mail message
Sending e-mail to Internet e-mail addresses
Adding attachments to your message
Creating HTML e-mail
Running a program and sending its output as an e-mail
12
Creating and Consuming Web Services
Creating and Consuming Web Services
Introduction
Creating a Web service from a function module
Configuring the created Web service
Consuming a Web service
Creating a consumer proxy's logical port
Calling a Web service from an ABAP program
13
SAP Interactive Forms by Adobe
SAP Interactive Forms by Adobe
Introduction
Creating nested tables
Enabling duplex printing in forms
Using form elements and scripting to create interactive forms
Working with Adobe offline infrastructure
Parallel printing of form
Adding error messages for interactive forms
PDF object API
14
Web Dynpro for ABAP
Web Dynpro for ABAP
Introduction
Creating trees
Creating navigation lists
Creating tabstrips
Displaying error messages
Calling dialog boxes of same component
Displaying Adobe forms in Web Dynpros
15
Floorplan Manager
Floorplan Manager
Introduction
Creating applications based on OIF Floorplan design
Changing header and ticket area at runtime
Adding list GUIBBs to Floorplan applications
Viewing structure of FPM applications
Creating GAF applications
Creating FPM applications using Application Creation Tool
Index
Index

Creating a Web service from a function module

In this recipe, we will see how we can create a Web service using a Web service creation wizard from a remote-enabled function module. The function module simply takes as input an amount (in figures, for example, 1000) and currency such as USD, and then outputs the corresponding amount in words such as One Thousand US Dollars (similar to the function module SPELL_AMOUNT).

Getting ready

Since the SPELL_AMOUNT function module is not remote-enabled, it cannot be used for generating a Web service. One such attempt will result in the following error during creation of the service.

So, we will copy the function module SPELL_AMOUNT and rename it as ZST8_MY_SPELL_AMOUNT and make the copy remote-enabled after making necessary changes in the interface. In this recipe, we will use our remote-enabled function module as the basis for creation of a Web service. The function group containing this function module was created by the name ZST8_SPELL.

How to do it...

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