HANA XS Engine
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SAP HANA Application Services provide an environment for developing and deploying applications directly on the SAP HANA database without an external application server. This minimizes layers and leverages HANA's performance. The programming model shifts responsibilities so presentation logic resides in clients like browsers, control flow logic in the XS engine, and calculation logic directly accessing HANA's data and indexing capabilities. Built-in services include UI frameworks, configuration, and connectivity options. All application artifacts are managed together in the HANA repository.
HANA XS Engine
- 1. SAP HANA - Application Services Erhan Keseli
- 2. Agenda Overview Programming Model The Repository Built-In Services Demo
- 3. SAP HANA Application Services: Overview
- 4. HANA Application Services overview Rationale: Enable Application Development and Deployment - Minimize “Layers” with an http-based UI (browser, mobile apps) to run directly on SAP HANA, without an additional external application server which minimizes TCO leveraging the built-in strengths of HANA Database for the best possible performance Scope From Lightweight environment for small web-based applications To Robust environment for complex high-speed business applications which utilize the deep integration with the differentiating HANA Database features
- 5. An application„s foundation Presentation logic Control flow logic Calculation logic Data
- 6. Performance gains with HANA Presentation logic Control flow logic HANA Calculation logic Data
- 7. Modern clients handle presentation logic Client Presentation logic Control flow logic HANA Calculation logic Data
- 8. Push the control flow down! Client Presentation logic HANA Control flow logic Calculation logic Data
- 9. The essence of HANA Application Services (XS)! Client Presentation logic HANA XS Control flow logic Calculation logic Data
- 10. HANA Application Services Programming Model
- 11. Programming model - paradigm shift: responsibilities in runtime layers Classic NW ABAP Layers XS Applications SAP GUI Browser Display pre-rendered UI Complete UI Rendering Proprietary Protocol HTML5: Javascript execution ABAP http(s); OData (pure data only) UI Rendering HANA XSEngine Application Logic Procedural Appl. Logic HdbNet DBI/DBSL, DB buffer (minimal data volume) SQL IndexServer Other RDBS Data-oriented Appl. Logic SQL (HDB-SQL, SqlScript) (high retrieval load, no scripts)
- 12. Built-in services Inbound channel UI services • HTTP • SAPUI5 • Portal Services Odata • Drastic code reduction Configuration • Easy language, built-in extensibility Outbound connectivity • HTTP
- 13. Control and data artifacts in one repository Client Presentation logic Presentation artifacts HANA Control flow logic Control flow artifacts Calculation logic Data artifacts Data
- 14. We manage all artifacts in one repository! Client Presentation logic Presentation artifacts HANA Control flow logic Control flow artifacts Calculation logic Data artifacts Data
- 15. The HANA repository • Object management, versioning and transport • Software component delivery and patching • Built-in support for translatable texts • Support for server based development
- 16. © 2012 SAP AG. All rights reserved.
- 17. © 2012 SAP AG. All rights reserved.
- 18. © 2012 SAP AG. All rights reserved.