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This open source software benchmarks the queries per second of an Apache Lucene index. It is an Java implementation and uses MultiFieldQueryParser to form a query.
The JAVA library which reconciles JDBC and POJO. Start working with POJO without rewriting all your JDBC application. Without any configuration file, without any annotation, use your native SQL request with JDBC and get POJO(s).
SmallSQL is a 100% pure Java DBMS, a relational database for Java desktop applications. It has a JDBC 3.0 interface and offering many ANSI SQL 92 and ANSI SQL 99 features. It is very small and fast Java library. It does not have a network interface.
OpenVista(R) is the open-source version of VistA, an enterprise grade health care information system developed by the U.S. Veterans Affairs and deployed at 1,500 global facilities. OpenVista is a registered trademark of Medsphere Systems Corporation
BlackRay is a high performance relational database, which combines regular database features with search engine like performance. Full transaction support, SQL and version controlled persisted snapshots characterize BlackRay.
Kneobase is an enterprise search engine, based upon the Lucene search engine and the Spring framework. It allows to perform full-text search across many different content sources. It is highly adaptable out-of-the-box and has a pluggable architecture.
DruideDB is an embedded database (based on Object/XML mapping files) for Java applications. Both source code (DAO) and persistence layer (mapping) is generated. This DB stores everything as strings and handle auto-increments and multiple PKs.
Small, fast Java library for reading and writing CSV files
Java CSV is a small fast open source Java library for reading and writing CSV and plain delimited text files. All kinds of CSV files can be handled, text qualified, Excel formatted, etc.
XTEA (eXtended Tiny Encryption Algorithm) support for db4o open source object database. XTEA is a block cipher that operates on a 64-bit block size with a 128-bit key. An extremely tiny but very fast encryption algorithm (with cycles less than 32 rounds)
A software to store, (PUT) meteorological data from complex free form text format to databases and and GET stored (and already loaded) data from databases using OPeNDAP protocol. Written using Java6, XSD, and C++. It support OPeNDAP clients thanks to
iMeMex is a dataspace management system. iMeMex is a research prototype. The package also provides several useful components for research such as external sorting, B+-trees, inverted indexes, content converters, query operators, and graph indexes.
HeliDB is a database for persisting key—value pairs from Java programs. Users have many choices in configuring what features they want the database to have and in how the data is stored. Features are for instance transactions and fast B+ trees.
ConStore is a light-weight model-oriented storage facility for concept networks (Concept-Nets) with seamless object-oriented programming interface. Concept-Nets can be viewed as arbitrary graphs where the vertices as concepts and the edges as Relations.
SGBD OO GesDatos desarrollado en Java 5, ODMG 3, arquitectura Cliente/Servidor, Persistencia, Transaccionalidad, Encripcion, Autenticacion, Backup, Recuperacion, OQL y ODL. Desarrollado por el Grupo GESDATOS, U Distriral Francisco Jose De Caldas.
This tool can parse the oracle statspack flat file report, create tables with sp content in html format. It is a good tool for DBA and Oracle Developer.
db4o is the world's leading open source object database for Java and .NET. Leverage fast native object persistence, ACID transactions, query-by-example, S.O.D.A object query API, automatic class schema evolution, small size (http://developer.db4o.com)
BeanDB intends to implement relational algebra with JavaBeans as domains and various storage engines as backends; including direct storage into a file system and RDBMS. This provides an alternative to object-relational mappings for Java developers.
The JPalo Client, API, and WebClient are tools to visualize and model data of a Palo or XMLA database. Their main purpose is Business Intelligence Reporting and Planning. With the API, programmers can easily model their specific needs.