LibMySequoia provides an alternative library for MySQL C client library (libmysqlclient.so) to benefit from the Sequoia high availability and performance scalability clustering solution. Native MySQL client programs can use the Sequoia clustering solution without changing any line of code in the application. The benefit of this solution is that native C applications, PHP, Perl, and Python programs using the MySQL C API interface now can transparently connect to a Sequoia cluster.
NaviServer is a versatile multiprotocol server originally based on AOLserver . It can be easily extended in either C or Tcl to create interesting Web sites and services. Main features include high performance multithreaded architecture, massive scalability and extensible approach, many modules, interpreted config file during startup, dynamic pages (ADP) in TCL, caching functions (static files and TCL byte code), pooled database connections, thread global arrays, introspection commands, mass virtual hosting that does not require server restart, a watchdog that restarts failed servers automatically, a telnet control port, efficient handling of down-/uploads, real-time upload progress/statistics, and more.
BeanKeeper is a full featured, powerful object/relational persistence and query library. It has a unique philosophy of simpleness and ease of use: it does not require config files, annotations, code generation, code "enhancing", or any kind of tools to be used. It handles simple Java beans (or POJOs) and its query service returns lists. Despite its simpleness, under the hood the library takes care of all the necessary logic: transaction visibility, result list paging, keys and ids, table creation/modification, class relations, inheritance/polymorphism, case sensitiveness, and much more. It currently supports: Oracle, HSQLDB, MySQL, and PostgreSQL.
SPL is a powerful scripting language. It features hashes, regular expressions, objects, exceptions, a built-in template language, and has a C-style syntax. It can be used stand-alone or embedded in other applications. The entire SPL toolchain (compiler, assembler, virtual machine, etc.) is pretty small (about 100k on x86 architectures). One of the more advanced VM features is the capability to dump the entire VM state to a file and resume later. It even is possible to resume on another machine with a different architecture.
The trading shim is a command line interpreter with a DBMS backend to the socket-based 'binary format' API of the Interactive Brokers' Trader Workstation. It uses mnemonic ASCII text commands to permit downstream clients to easily access several worldwide securities markets and exchanges (stocks, options, futures, bonds, and Forex) for "tick" data and history (intraday and EoD). It also allows clients to initiate and supervise trades of securities, manage accounts, and more.