IV.8 Technical and Crosscutting Concepts

This section focusses on the technical concepts and other important concepts involved in the application.

Domain Models

biking2 is a data-centric application; therefore, everything is based around the following Entity Relationship Diagram (ERD):

Figure 4.30: Entities in biking2

These entities are manifested as tables.

Tables

Figure 4.31: Tables

Those tables are mapped to the following domain model:

Figure 4.32: Domain model (JPA entities)

Domain Model

Figure 4.33: Domain model components

Important Business Methods Regarding BikeEntity

Figure 4.34: Business methods

Persistency

biking2 uses an H2 (https://www.h2database.com/html/main.html) database for storing relational data and the filesystem for binary image files and large ASCII files (especially all GPS files).

During development and production, the H2 database is retained and is not in-memory-based. The location of this file is configured...