Open Source Ruby Database Software

Logstash is a server-side data processing pipeline that dynamically ingests data from numerous sources, transforms it, and ships it to your favorite “stash” regardless of format or complexity. It supports and ingests data of all shapes, sizes and sources, dynamically transforms and prepares this data, and transports it to the output of your choice. Logstash is extensible, with over 200 plugins available to let you create and configure your pipeline how you choose.

Tokyo Cabinet is the successor of QDBM, a high performance database library similar to the DBM family. It also supports hash and B-tree databases and does not require any server process. The overall speed is improved compared to QDBM.

DataVision is a reporting tool similar to Crystal Reports. DV supports many data sources (JDBC, files) and many output formats (HTML, XML, PDF, LaTeX, Excel, delimited files, DocBook). DV includes a GUI editor. DV is embeddable. Reports are XML-based.

LDO's are lightweight data objects, Java classes that provide query and update access a single table or view in a SQL database. The LDO utility provides a user-friendly interface to generate that JDBC code.

The Medlane project is an attempt to create a set of tools that will enable librarians to move from the standard MARC (MAchine Readable Cataloging) format to a new library/museum XML format. This move will ensure traditional library/museum data remains

QDBM is a library of routines for managing a database. It is developed referring to GDBM for the purpose of the following three points: higher processing speed, smaller size of a database file, and simpler API..

Scalaris is a scalable, transactional, distributed key-value store. It was the first NoSQL database, that supported the ACID properties for multi-key transactions. It can be used for building scalable Web 2.0 services. Scalaris uses a structured overlay with a non-blocking Paxos commit protocol for transaction processing with strong consistency over replicas. Scalaris is implemented in Erlang.

This library presents an abstraction layer on top of a database. It lets a project have persistent classes with a moderate amount of overhead.

The Registry Server (jUDDI) offers a mechanism for humans or software applications to advertise and discover Web services. The Java Web Services Developer Pack (Java WSDP) Registry Server implements Version 2 of the Universal Description, Discovery and I