AdaCGI is an Ada95 interface to the "Common Gateway Interface" (CGI). AdaCGI makes it easier to create Ada95 programs that can be invoked by World Wide Web (WWW) HTTP servers using the standard CGI interface. Using it, you can create Web applications using Ada95 to perform queries or other processing by request from a WWW user.
Apache Jakarta Regexp is a 100% pure Java regular expression package. Expression syntax supports all of Perl5 syntax, with the exception of back reference substitution markers (several people have mentioned this lack, so please feel free to contribute a solution). It also supports a very limited subset of POSIX features. Performance and features are somewhat inferior to ORO, and the new JDK 1.4 (java.util.regex) package, but the package is especially small and features the ability to precompile expressions (without using object serialization) into byte arrays, thus avoiding the need to load the expression compiler.
Apache::Session is a persistence framework whose purpose is to provide session management to Web developers. It is designed to work with Apache and mod_perl, but it does not depend on them and will work with any Web server. This module provides a set of classes that give the developer maximum functionality. Session data can be stored in a database, flat files, or shared memory.
The Archive::Zip module allows a Perl program to create, manipulate, read, and write Zip archive files without calling an external program. Members can be added, removed, extracted, replaced, rearranged, and enumerated. They can also be renamed or have their dates, comments, or other attributes queried or modified. Their data can be compressed or uncompressed as needed, and members can be created from members in existing Zip files, or from existing directories, files, or strings.
NFSv4 specifies that the RPC calls be batched into a "compound" call. There is no support for this in RPCGEN. By rearranging the ONC IDL for NFSv4 into AutoGen definitions, these templates will emit the original IDL *plus* all the code to package, send, distribute, collect, return, and dispatch the results. The distributed program author merely needs to call and supply server procedures for the routines specified in the IDL. Templates for these calls and service routines is provided, too. The NFSv4 definitions are included.
Avalon is Apache's Java Server Framework project. It is separated into six subprojects: Framework, Excalibur, LogKit, Cornerstone, Phoenix, and Apps. Its purpose is to simplify server side programming for Java-based projects. It formalizes several best practices and patterns for server side programming. Framework describes the interfaces and contracts for the component-based architecture. Excalibur provides a number of useful components and utilities. LogKit is a logging implementation. Cornerstone is a group of reusable server components and services. Phoenix is an enterprise container implementation that uses all of the other subprojects to automatically deploy and manage one or more componentized servers. Apps is a home for several Phoenix-compatible server applications and reusable components (like FtpServer).
This data structure features fast (O(log N)) insertion, removal, and retrieval of records, provided that there is a sorting relation over their keys and there are no entries with equal keys. The AVL tree is an explicit binary searching tree, where left children of each vertex are less or equal, while right children are greater or equal than the vertex itself. In addition, the tree is balanced so that the difference between the depths of the two subtrees of each vertex is at most one.