Libsqlfs is a library used in conjunction with SQLite that allows applications to put an entire read/write file system into a relational database as a single file in the host filesystem. Such a filesystem-in-a-file can easily be moved around, backed up, or restored as a single file. The filesystem can also be accessed as individual files through FUSE (File System in User Space). This provides great flexibility and convenience. File system accesses can be batched into atomic transactions (either all the updates are done, or none of them are). Libsqlfs was created as part of the "ACCESS Linux Platform", and it will be useful in many other applications.
JOPE is an implementation of the SOPE server and concepts in Java 1.5. It provides (yet another) templating engine modelled after the WebObjects one, as well as database access libraries and other features. JOPE applications can be deployed into a Servlet container or run standalone using the Jetty HTTP server.
JDBCPersistence is an Object Relational Mapping framework. Designed for use in high volume online banking applications, the package delivers performance matching that exhibited by hand-written JDBC code. It uses a bytecode generation technique to create bytecode for classes that implement logic used for persisting the data. As the framework uses SQL for querying data, the learning curve is reduced. The footprint of the package is under 200KB.
PL/XML is an XML based scripting language for PL/SQL. PL/SQL is the procedural language in Oracle and EnterpriseDB. PL/XML is based on CMD nodes. Each CMD node identifies a command and all parameters for that command. PL/XML supports FOR loops, CASE statements, variables, procedures, and functions.
nsFB is an internal AOLserver database driver for the Firebird or Interbase database. It supports reading and writing BLOB data and ARRAY data. It supports the full size of varchar (32765 bytes) or char (32767 bytes). Many configuration options are supported, such as charset, dialect, transaction isolation level, etc. All kinds of data types are supported, such as NUMERIC or DECIMAL.
RS Asset is a class that can be used to provide an object oriented interface to access database table rows performing what is usually called object-relational mapping (ORM). It reads a mapping definitions array that describes how to access a given table to perform the basic CRUD operations on the table rows: create, read, update, and delete. The class provides functions that execute operations.
hamsterdb Embedded Storage is an embedded database engine for C/C++, including wrappers for Java, .NET, and Erlang. It supports in-memory databases, very fast database cursors, "record number" databases, ACID transactions, and duplicate keys. hamsterdb is very fast and highly configurable. It compiles and runs on Unix platforms, Linux, Microsoft Windows, and embedded platforms.