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Object Oriented Programming With Abap Objects By James Wood Pdfl
*Working with objects * Encapsulation and implementation hiding * Object initialization and cleanup * Inheritance * Polymorphism * Component-based design * Exceptions * ABAP Unit * ALV object model * Object Services * BOPF
BOPF controls the application business logic as well as the data retrieval of the buffer and persistency layer. The main design principles are a clear separation of the business logic and the buffering of data as well as a clear structuring of the business logic into small parts with a clear separation of changing and checking business logic. The BOPF approach for implementing business objects breaks down business logic into the following four concepts:
I am a big fan of the new ABAP-based programming concept which employs the use of CDS, BOPF, etc. However, as ABAP matures on SAP CP, I'd like to see the BOPF spun off as a more general-purpose service offering on SAP CP which enables developers to model business objects in a language-agnostic kind of way. Salesforce and Dynamics 365 have options like this where developers can define business objects using graphical tools and consume the objects from any language offering using REST APIs.
Please see my response to Serdar above. I'd personally like to see frameworks like the BOPF spun off into general-purpose services that can be consumed in a language-agnostic way. That way, I could model by business objects centrally and then create my app using a microservice-based architecture that might leverage multiple programming environments for different things: Node+Expess for API routing, Python for ML-based requirements, and perhaps ABAP for additional business logic.
You can convert a timestamp to a date/time data object and vice versa using the CONVERT statement in ABAP. Listing 2.7 shows the syntax used to convert a timestamp into data objects of type D and T. The TIME ZONE addition adjusts the UTC date/time value within the timestamp in accordance with a particular time zone. Additionally, the optional DAYLIGHT SAVING TIME addition can be used to determine whether or not the timestamp value happens to coincide with daylight savings time. If it does, the lv_dst variable has the value 'X'; otherwise, it's blank.
Figure 2.7 shows the main menu of the SAP Calendar transaction . From here, you can configure subobjects such as public holidays, holiday calendars, and factory calendars. By default, an SAP NetWeaver system comes preconfigured with some typical settings in these subareas. However, you're also free to create customized holidays and calendars as needed.
We study the problem of 3D object generation. We propose a novel framework, namely 3D Generative Adversarial Network (3D-GAN), which generates 3D objects from a probabilistic space by leveraging recent advances in volumetric convolutional networks and generative adversarial nets. The benefits of our model are three-fold: first, the use of an adversarial criterion, instead of traditional heuristic criteria, enables the generator to capture object structure implicitly and to synthesize high-quality 3D objects; second, the generator establishes a mapping from a low-dimensional probabilistic space to the space of 3D objects, so that we can sample objects without a reference image or CAD models, and explore the 3D object manifold; third, the adversarial discriminator provides a powerful 3D shape descriptor which, learned without supervision, has wide applications in 3D object recognition. Experiments demonstrate that our method generates high-quality 3D objects, and our unsupervisedly learned features achieve impressive performance on 3D object recognition, comparable with those of supervised learning methods. 2ff7e9595c
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