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An Open-Source Object-Graph-Mapping Framework for Neo4j and Scala: Renesca

Abstract : The usage and application of graph databases is increasing. Many research problems are based on understanding relationships between data entities. This is where graph databases are powerful. Nevertheless, software developers model and think in object-oriented software. Combining both approaches leads to a paradigm mismatch. This mismatch can be addressed by using object graph mappers (OGM). OGM adapt graph databases for object-oriented code, to relieve the developer. Most graph database access frameworks only support table-based result outputs. This defeats one of the strongest purposes of using graph databases. In order to harness both the power of graph databases and object-oriented modeling (e.g. type-safety, inheritance, etc.) we propose an open-source framework with two libraries: (1) renesca, which is a graph database driver providing graph-query-results and change-tracking. (2) renesca-magic, a macro-based ER-modeling domain specific language (DSL). Both were tested in a graph-based application and lead to dramatic improvements in code size (factor 10) and extensibility of the code, with no significant effect on performance.
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Submitted on : Tuesday, November 14, 2017 - 4:07:06 PM
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Felix Dietze, Johannes Karoff, André Calero Valdez, Martina Ziefle, Christoph Greven, et al.. An Open-Source Object-Graph-Mapping Framework for Neo4j and Scala: Renesca. International Conference on Availability, Reliability, and Security (CD-ARES), Aug 2016, Salzburg, Austria. pp.204-218, ⟨10.1007/978-3-319-45507-5_14⟩. ⟨hal-01635019⟩



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