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Encyclopedia > Fusebox (programming)

Fusebox is a web application framework for ColdFusion and PHP. Originally released in 1997, it is currently in its fifth major incarnation. Development of Fusebox 6 is underway. A web application framework is a software framework that is designed to support the development of dynamic websites, Web applications and Web services. ... This article or section does not adequately cite its references or sources. ... For other uses, see PHP (disambiguation). ...


Fusebox is intended to be easy to learn and provides benefits by helping developers structure their code through a set of simple conventions. Fusebox also allows advanced developers to build large applications, leveraging design patterns and object-oriented programming techniques if they wish.

Contents

Overview

Fusebox provides web application developers with a standardized, structured way of developing their applications using a relatively straightforward and easy to learn set of core files and encouraged conventions. In addition to the framework itself, Fusebox has become closely associated with a Web application development methodology developed by its proponents known as "FLiP". (Many people refer to Fusebox as a "methodology", but in fact, as stated, it's a development framework. FLiP, however, is a methodology). Many frameworks provide comparable advantages, however, Fusebox (probably on account of both its relatively long history and the sizable and active community that supports it) seems to be the most popular one for ColdFusion. Also the framework itself has been ported and used in ASP, JSP, Perl/CGI and PHP as well. (Other than ColdFusion, the PHP version of Fusebox is the only version to gain momentum.) Look up flip in Wiktionary, the free dictionary. ... This article or section does not adequately cite its references or sources. ... Active Server Pages (ASP) is Microsofts server-side script engine for dynamically-generated web pages. ... JavaServer Pages (JSP) is a Java technology that allows software developers to dynamically generate HTML, XML or other types of documents in response to a Web client request. ... Wikibooks has a book on the topic of Perl Programming Perl is a dynamic programming language created by Larry Wall and first released in 1987. ... The Common Gateway Interface (CGI) is a standard protocol for interfacing external application software with an information server, commonly a web server. ... For other uses, see PHP (disambiguation). ...


It is important to note that Fusebox deals primarily with the effort of wiring together view states (pages) with controller actions (form submits, etc.) and the front-end of the business-logic tier. The framework does not address creating and maintaining business logic such as database interaction or service layers.


Concepts

Fusebox, Circuits and Fuseactions

The original concepts behind Fusebox were based on the household idiom of an electrical fusebox that controls a number of circuits, each one with its own fuse. In a Fusebox web application, all requests are routed through a single point (usually index.cfm for ColdFusion) and processed by the Fusebox core files. The application is divided into a number of circuits (usually in sub-directories) which are intended to contain related functionality. Each circuit in the application is further divided into small files called fuses that should perform simple tasks. As such, Fusebox is considered an implementation of the front-controller design pattern. URLs within a Fusebox web application are usually of the form index.cfm?fuseaction=cname.fname where "cname" is the name of a circuit and "fname" is an XML-defined "method" within that circuit known as a fuseaction. The query-string variable name "fuseaction" can vary depending on configuration parameters, so not all applications using Fusebox need to use the action variable "fuseaction".


Naming Conventions

Fusebox encourages, but does not enforce, separation of presentation logic from business logic. It uses a number of file naming conventions to encourage this separation: presentation files begin with dsp (display) or lay (layout), database access files begin with qry (query) and general business files begin with act (action). Typical file names are in the format [prefix]_[filename] like dsp_loginform.cfm. Additional naming conventions are used by some Fusebox developers but these are the most common ones.


Exit Fuseactions

Another concept that Fusebox encourages is to parameterize any exit points in a web page, coding them as variables that are set in the circuit control file. These exit points are known as XFAs - eXit FuseActions. The idea is that by parameterizing the exit points in a web page, the flow of control can be updated more easily, allowing more reuse of web pages or fragments thereof.


FuseDocs

Associated with the framework, but not strictly part of it, is the concept of FuseDocs which is a semi-formalized form of documentation written in XML that specifies the inputs and outputs of each fuse file. There are third-party tools available which can use FuseDocs to do things like generate test harness code. FuseDoc is a program definition language created by Hal Helms in the late 1990s. ...


History

Fusebox has had several major revisions over the years. The most popular versions in use today are Fusebox 3, 4 (including 4.1) and 5. In Fusebox 3, the control files were all written in the underlying programming language (e.g., fbx_Switch.cfm for ColdFusion). Fusebox 4 and later versions use XML for the control files (fusebox.xml and circuit.xml), but other framework components are written using the underlying programming language (e.g. fusebox5.cfm, again for ColdFusion). In theory, this helps improve tool support for the framework. It also allowed for the pre-parsing and generation of a single template for processing each fuseaction, greatly increasing performance. The Extensible Markup Language (XML) is a general-purpose markup language. ...


Fusebox (version 1)

Fusebox 1 grew out of a conversation on the CF-Talk mailing list in April of 1998. The participants included Michael Dinowitz, Josh Cyr, Steve Nelson and Gabe Roffman. Nelson and Roffman are credited with creating the original Fusebox though the first Fusebox program was written by Josh Cyr. The methodology was constantly evolving and beyond a whitepaper and a handful of examples, no official documentation existed. Very few developers were exposed to Fusebox during these early days.


Fusebox 2

Craig Girard and Steve Nelson (along with Hal Helms and Nat Papovich) wrote a book, Fusebox: Methodology and Techniques, which was published in 2000 by Fusion Authority. Programmers who followed the practices described in the book were said to be doing "Fusebox 2."


XFB

Hal Helms built upon Fusebox 2 and called his ideas eXtended FuseBox, or XFB.


Fusebox 3

Fusebox 3 (written primarily by John Quarto-von Tivadar and Nat Papovich) was an effort by leading members of the Fusebox community to incorporate XFB and other ideas into a reusable library, known as the "core files." A simple API allowed application code to communicate with the core files. Upon release in the fall of 2001, Fusebox became a framework rather than a methodology. A subsequent 3.01 release addressed minor issues. Fusebox 3 was something of a sea-change from Fusebox 2. Only the original principles remained relatively unchanged; a Fusebox 2 and Fusebox 3 application are structured very differently. API may refer to: In computing, application programming interface In petroleum industry, American Petroleum Institute In education, Academic Performance Index This page concerning a three-letter acronym or abbreviation is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. ... Look up Framework in Wiktionary, the free dictionary. ... Methodology is defined as the analysis of the // == Headline text == principles of methods, rules, and postulates employed by a discipline or the development of methods, to be applied within a discipline a particular procedure or set of procedures. [1]. It should be noted that methodology is frequently used when method...


Fusebox 4

Fusebox 4 was a complete rewrite of Fusebox 3. The core files license (which is open source) are held by a private company, owned by Hal Helms and John Quarto-von Tivadar: The Fusebox Corporation (which appears to be a defunct corporation).


Fusebox 4.1 introduced some new XML grammar elements beyond those available in 4.0 that let you declare, instantiate and manipulate objects (COM, Java and ColdFusion Components) as well as web services. These features have provided Fusebox developers with the means of tying object-oriented models (i.e. business-logic) directly into their controllers. However, many Fusebox developers used object-oriented or highly-structured models in earlier versions of Fusebox or in the current versions without use of these grammar elements.


Fusebox 5

In 2006, The Fusebox Corporation asked Sean Corfield to take the lead in developing the next iteration of Fusebox. Fusebox 5 was another complete rewrite with new features and improved performance. Fusebox 5 nearly completely maintained backwards-compatibility with Fusebox 4.1. In November 2006 The Fusebox Corporation transferred ownership of the core files and fusebox website to TeraTech under the guidance of TeraTech president and Fusebox speaker Michael Smith. TeraTech announced that Fusebox will remain open source and is seeking to increase community involvement in the project again. Fusebox 5.1 and all subsequent releases are licensed under the Apache Source License 2.0. In February 2007 the members of Team Fusebox met at the Frameworks conference in Bethesda Maryland and created a plan of action for community involvement using volunteers in nine different areas of Fusebox.


Fusebox 5.5

  • Development of Fusebox 5.5 is currently underway: http://trac.fuseboxframework.org/fusebox/roadmap

See also

This is a comparison of web application frameworks. ...

External links


  Results from FactBites:
 
f u s e b o x @ c o r f i e l d . o r g (803 words)
Fusebox is an application framework that is very popular in the ColdFusion community and many of its adherents are very zealous about it.
Fusebox provides a small set of 'core' files and a large amount of structure which is very helpful for a lot of developers: it emphasizes and strongly encourages separation of presentation from logic and uses a readily understandable idiom for modeling websites, namely circuits, fuses and switches.
Fusebox 5 is in active development right now which a public released slated for mid-2006, at CFUNITED (I'm the lead developer).
  More results at FactBites »


 
 

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