HyperGraphDB

HyperGraphDB 1.0 is a general purpose, extensible, portable, distributed, embeddable, open-source data storage mechanism. Designed specifically for artificial intelligence and semantic web projects, it can also be used as an embedded object-oriented database for projects of all sizes. HyperGraphDB is a Java based product built on top of the Berkeley DB storage library. It can be used as a single in-process database bound to a location on the local disk or within a cluster of networked database instances communicating and sharing data in a P2P (peer-to-peer) fashion. Key Features of HyperGraphDB include: * Storage of generalized hypergraphs. * Open, extensible type system. * Basic query system and graph traversal algorithms. * Out-of-box support for Java object storage. * Thread-safe transactions. * P2P framework for data distribution.