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Persistence Annotation for RDF (PAR) is a set of annotations and an entity manager that provides JPA like functionality on top of an RDF store while accounting for and exploiting the fundamental differences between graph storage and relational storage. PAR introduces three (3) annotations that map a RDF triple (subject, predicate, object) to a Plain Old Java Object (POJO) using Java's dynamic proxy capabilities.

A JDBM entry store which does not have any dependency on core interfaces. The JDBM partition will use this store and build on it to adapt this to server specific partition interfaces. Having this separate module without dependencies on core interfaces makes it easier to avoid cyclic dependencies between modules. This is especially important for use within the bootstrap plugin which needs to build the schema partition used for bootstrapping the server.

is an all-in-one platform for data discovery, data lineage, data quality, observability, governance, and team collaboration. It is one of the fastest growing open-source projects with a vibrant community and adoption by a diverse set of companies in a variety of industry verticals. Powered by a centralized metadata store based on Open Metadata Standards/APIs, supporting connectors to a wide range of data services, OpenMetadata enables end-to-end metadata management, giving you the freedom to unlock the value of your data assets.

InteGraal has been designed in a modular way, in order to facilitate software reuse and extension. It should make it easy to test new scenarios and techniques, in particular by combining algorithms. The main features of Graal are currently the following: (1) internal storage to store data by using a SQL or RDF representation (Postgres, MySQL, HSQL, SQLite, Remote SPARQL endpoints, Local in-memory triplestores) as well as a native in-memory representation (2) data-integration capabilities for exploiting federated heterogeneous data-sources through mappings able to target systems such as SQL, RDF, and black-box (e.g. Web-APIs) (3) algorithms for query-answering over heterogeneous and federated data based on query rewriting and/or forward chaining (or chase)