OpenSHORE

This release cuts down the memory consumption of an OpenSHORE server up to factor two. It comes with enhanced and optimized container classes for the integrated object-oriented database. The new classes need up to half the space in memory and on disk for typical document sets (Java source code, for example). It also enhances error messages and fixes some minor problems.

This release integrates the latest XSB Prolog
version 2.7.1 (Kinryo) as the query engine. This
offers the user sophisticated deductive query
possibilities to find out all sorts of information
inside stored documents and about the relations
among them. OpenSHORE shows query results as
hypertext, which leads the user directly to found
documents, semantically marked text sections
(objects), and relation end points. The query
engine reads facts about documents on demand from
an interface to the object-oriented database of
OpenSHORE, so facts must not be copied for
queries.

This release adds full team support with
simultaneous read and write access to transaction
guarded documents (ACID properties). The extended
memory mapped file persistence layer implements
MVCC transactions with redo log, optimistic write
access control, and database page merging. MVCC
(Multiple Version Concurrency Control)
transactions allow users to access consistent
document structures while new or updated documents
are imported. The release also enhances support
for modern Linux 2.6.x kernels and fix some minor
problems.

This is the first version that runs on Linux. It
now builds and links completely with open source
tools and libraries on Linux and Windows. It also
fixes all reported bugs.

This is the first Open Source version; it builds and links completely
with Open Source tools and libraries. It adds a new persistence layer
based on memory mapped files to substitute object oriented database
functionality.