SAP NetWeaver Application Server

(Redirected from SAP Web Application Server)

The SAP NetWeaver Application Server formerly SAP Web Application Server is part of SAP NetWeaver is the basis of most SAP products represents He divided (formerly SAP R/3-Basis) in an ABAP and a Java EE application server. Both parts (stacks) are both individually and collectively installed. In the case of an integrated installation (ABAP and Java, also known as double-stack) uses the Java stack, the user management of the ABAP stack. It also automatically communication links between the stacks are created. This is called Java connector, JCo abbreviated.

However, double-stack are (ABAP and JAVA with an SID) installations with a few exceptions (eg, SAP Solution Manager, SAP Process Integration). No longer supported by SAP provides current double-stack installations to a splitting tool with which you can separate those instances (eg for an upgrade).

The Application Server provides a runtime environment and middleware as for the corresponding ABAP or Java programming environment, which among other things takes over the access to the database and the operating system. So an ABAP or JAVA-/NetWeaver-Programm run independently of the database or operating system.

History of name

• SAP BASIS (up to 4.6D)
• SAP Web Application Server 6.20
• SAP Web Application Server 6.30 (ABAP + J2EE, innovation: separate database schema for the J2EE instance), not delivered
• SAP Web Application Server 6.40 (ABAP, JAVA)
• SAP NetWeaver Application Server 7.00 (ABAP, JAVA)
• SAP NetWeaver Application Server 7.10 (JAVA only in SAP Composition Environment)
• SAP NetWeaver Application Server 7.20 (JAVA only in SAP Composition Environment)
• SAP NetWeaver Application Server 7.30 (ABAP, JAVA)

SAP Web Application Server for Java / SAP NetWeaver Application Server Java

The SAP Web Application Server Java and Web Application Server Java-based and supports the Java Reference Model (J2EE) (depending on the version of the Java JDK are now supplied directly from SAP, there come no more versions of SUN / Oracle or IBM used ):

SAP     version supported JAVA version

6.20     1.3

6.40     1.3

7.0       1.4 (SAP JVM 4.1)

7.1       5 (SAP JVM 5)

7.2       5 (SAP JVM 5)

7.30     6 (SAP JVM 6)

This also includes the Web Dynpro technology for creating web front-ends as well as the proprietary SAP Open SQL for Java. It allows developers to SQL statements, regardless of the SAP Web Application Server underlying database systems write (or the individual database schemas).

SAP also provides the SAP NetWeaver Developer Studio, an Eclipse-based development environment) and base for many Java-based applications of SAP (eg SAP NetWeaver Portal)

To manage development environments is the NetWeaver Development Infrastructure (NWDI), consisting of the components Design Time Repository (administration of the source code), Component Build Service (central Build Service) and Change Management Service (Transportation of developments within a so-called Development Tracks).

Furthermore, the System Landscape Directory, the technical system landscape is managed including through a software catalog.

SAP Web Application Server ABAP / SAP NetWeaver Application Server ABAP

The SAP WebApplication Server ABAP and NetWeaver Application Server ABAP are the application server (and thus flow and development environment) for SAP's ABAP programming language and the applications written in it. The server is a direct descendant of the SAP basis, in turn, the severed technical components (abstraction of the database system, operating system and network, development environment, transport, etc.) corresponds to the SAP R / 3 taken (to be exact, plus the cross-module functional components, which are in R / 3 are to be found). Therefore, it is the foundation for many SAP applications (such as SAP ERP, specifically the component SAP ECC) There is support for Web services, particularly through integration of ITS. Furthermore, there is support for Adobe Print Forms and Adobe Forms Offline.

Both servers use the Enqueue Server for centralized management of logical locks, during the execution of transactions, and the message server for the cluster administration and distribution of requests.

Administration

• Transactions via the SAP GUI (only ABAP)
• Profile files (ABAP and Java)
• Database Administration (ABAP and Java), database system-dependent
• Visual Administrator (Java, when you start the application server to Version 7.1)
• Configtool (Java, even when stopped application server)
• Netweaver Administrator (Java, administrator web interface since NW04 SPS12, instead of Visual Administrator from 7.2)
• System Landscape Directory (including the care of interconnected systems, software components and namespaces)
• JCo - for connecting Web Dynpro applications with SAP R / 3 systems
• CMS (Java, means of transport landscape for developments)
• SAP Solution Manager (separate system of administration)

Operation (web access)

Requests (requests) to the SAP Web Application Server can HTML-based pages that were created with the help of Web Dynpro, XML-based messages, Web services, or a number of other sources received.

SAP Application Server accepts the information from these requests and passes it to Java or ABAP-based applications that run within the server. These programs can then process the received data. Here, tools and components to be used to support special features such as workflow, archiving, etc. The application server queries and stores data using Open SQL. This enables the development of unique software that supports all major database vendors alike.

Prerequisites

The SAP Web AS can run on a wide variety of platforms (combination of database system and operating system).

Databases:

• Oracle
• DB2
• MaxDB
• MS SQL Server
• Informix (only ABAP, support discontinued)
• Sybase
• HANA

Operating Systems:

• The Unix-AIX, HP-UX, Linux (multiple CPU platforms), Solaris, and Tru64
• Windows Server 2000 and its successor
• IBM System i5, eServer i5, eServer iSeries
• z / OS for IBM mainframe

Licenses

The SAP Web AS is a key component in various SAP system types that are sold as part of all-inclusive packages to businesses. For individuals, these packages are not available. Some issues were (with names such as mini or mini WHAT Web AS) among others as book-addition (and thus at low cost) distributed. These can be used for certain purposes, but without the usual maintenance and support claims. An alternative to the ABAP book offerings is a free registration in SDN (SAP Developer Network). In the download section you can find free SAP development environments from the ABAP stack to the Java standalone environment for testing. These environments are valid for six weeks and can be renewed.

SAP NetWeaver Application | Building Web Infrastructures with SAP NetWeaver Application Serve

A growing number of employees of business scenarios to be connected via the Web, require customers and partners. Therefore, to implement the SAP NetWeaver Portal and Web business applications, infrastructure, landscaping must be in the right place. This raises important questions such as: indoor and outdoor applications at the same time I use the existing infrastructure? Where is my database fit into this scenario? I need to handle user management? Included in the system do I landscape my back-end system? What about what security landscape, internal and external? How to protect system stability as the number of hits?

SAP answers to sensitive questions in detail that this NEWS technical guide for depth. Practice and know-how, this book is to create the best infrastructure, important decisions is a complex skill system administrators, network architects, technical consultants and support of safety experts of the network infrastructure that meets the safety requirements of the group discussion later practice. Several detailed examples shed additional light and serve to complete the complex, but the simple picture painted by the authors.

Features of Building Web Infrastructures with SAP NetWeaver Application Serve:

• Building Web Infrastructures with SAP NetWeaver Application Serve
• Areas of network components and scenarios
• Load distribution 
• Implementation of firewalls and gateways 
• Application Security, Security Zones, and access control lists 
• High availability and clustering 
• Measurement and Load Testing 
• Application and network performance 
• Terminal Server and Virtual Private Networks Web Cache

Security in SAP NetWeaver 7.0 Application Server ABAP: Securability assessment

Gelmistir. Yazılım software market, most companies have become an integral part of our daily lives for work done by the software. But software security, scalability and connectivity, the complexity of the biggest challenges facing the public and a specific address, how enterprise software is the software? This book is the enterprise software market, i.e., the SAP NetWeaver Application Server ABAP 7.0 is investigating the safety of one of the leading products. Detailed in product safety and then assessed by a method developed by a student at the University of Linkoping, Sweden (FOI) is reinforced by researchers from defense research organizations. Learn, in particular, is the likely audience research and teach students who are interested in SAP security and time management and IT staff in all aspects of SAP and safety, research, implementation, development and support.

About the Author

Anvar Akhmedjanov (Oregon State University, USA Bachelor of Technology, Royal Institute of the master, Sweden), HP Enterprise Services applications, and currently serves as head programmer-engineer its implementation is in Tashkent in Uzbekistan, a young researcher at the University.

ABAP Performance Tuning

This book is a guide to analyze and optimize the source code for ABAP. This tool performance analysis and related technology to learn and discover how to improve the analysis of sources of existing code and programming style. This is to ensure that its programs are fully optimized to be a resource for ABAP.

Analysis Tools

When and how to properly analyze and code inspector, monitoring performance in ABAP or the individual records will understand after reading this book to the use of statistical tools.

Programming technologies

Parallel processing, internal tables, the SQL data manipulation, and more detailed information and learn how it affects the performance of these technologies.

Buffering

Explore different shock absorbers are available in the SAP NetWeaver Application Server ABAP and options to avoid unnecessary database access Read about the most important buffer.

Into database

This database is access to the architecture description database techniques and options background and setting of the house, you will receive access to the database.

New developments

Processes such as the presence of an ABAP Sat EhP2 7.0 Overview of new developments, innovations and performance monitoring changes in the internal tables.

Characteristics of ABAP Performance Tuning:

• Analysis tools: code analysis and memory controller, and the selectivity of the process, debugger, performance monitoring, ABAP Trace, Trace E2E, Statistics only records
• Parallel Processing
• SQL and data processing: Access Policy, the rate of set design, the operating frequency, the API
• Buffer: types of buffers, sessions, shared objects, the table buffering
• Internal Tables: tables of type, bedside tables, secondary indexes, nested loops, edit and delete
• RFC Contact

About the Author

Hermann Gahm in the field of technology and performance of SAP Active Global Support is a consultant for the support. SAP ABAP performance problems related to work in the field of optimization services focus on supporting key clients.

ABAP Objects

This brand new two-seller includes the development of printing with SAP NetWeaver ABAP. If the ABAP programming, an experienced developer or a team member and advisor to the new project: This comprehensive reference provides a comprehensive understanding of all aspects of ABAP technology.

Based on ABAP Objects, this 1000-page book version 7.0 (Release 7.10 "discreet surveillance" included) in place, explains all the concepts of modern ABAP. The new edition of the SAP NetWeaver Application Server ABAP without subjects, regular expressions, shared objects, exception handling class, assertions, Web Dynpro ABAP, Object Services, dynamic programming, interface technologies (including RFC , CIF, XML), and other test vehicles. Procedural techniques are also covered, if necessary.

Characteristics of ABAP Objects:

• SAP NetWeaver Application Server ABAP
• ABAP Workbench Object Browser, Class Builder, etc. Professional Development
• The basic elements of ABAP Objects
• Classic modular program execution
• To avoid errors and error handling
• GUI Programming: dynpros, lists, selection screens, controls and Web Dynpro
• Persistent data: DB Access Object Services, interface files, data sets
• Dynamic programming: field symbols, RIS, dynamic tokens and procedure calls
• Interfaces for data communication und: RFC, ICF, XML Web Services

About the Author

Dr. Horst Keller, Walldorf, Germany SAP NetWeaver ABAP Group Foundation, an information architect working in the SAP system. Here, ABAP and ABAP Objects, focusing on documentation and distribution. As general manager, EMEA, Sascha Krueger and the telecommunications industry, is responsible for management consulting in the field of media and public services.