As its name suggests, LCHH defines four key implementation components:
The Loader is an ID'ed DIV container that identifies a partial update region for later content injection;
The Content that contains both static information and interactive elements, also known as "Triggers";
Client-side Handlers that process various trigger events, such as button clicks;
Server-side Handlers that respond to AJAX requests that are sent by the client-side handlers. Server-side handlers typically perform database CRUD operations before piggy-backing the updated content into the aforementioned Loader.
Example Flow and File Organization of the LCHH Architecture
Comparison with XHR Injection
LCHH uses the responseText of an XMLHttpRequest to replace the innerHTML value of the target DIV container. This is a common AJAX pattern. XHR injection alone, however, does not sum up LCHH. The "Content" in the initial loading of LCHH is instantly generated on the server-side as opposed to loading an empty container and then populating the container with another AJAX round-trip. Piggy-backing renewed content after database changes is also characteristic of LCHH.
LCHH organizes code into four categories:
Loader and Client-side Handlers (JavaScript functions) are stored in a "user-facing" file that is directly accessible by its URI;
A server-side script that can be included by the user-facing file. This script outputs the "Content";
A "routing script" that serves as a single point of call for invoking various AJAX calls;
Server-side handlers, typically stored under an "include" or "icl" sub-directory. Each handler is often implemented in a separate script file.
References
"LCHH vs. MVC". October 10, 2013. Retrieved April 28, 2016.
Dong, Schien (2015), There is No AJAX - The Art of Blending DHTML, PHP and MySQL (7th ed.), pp. 338–343, ISBN978-1435774810
February 08, 2023
lchh, architecture, this, article, includes, list, references, related, reading, external, links, sources, remain, unclear, because, lacks, inline, citations, please, help, improve, this, article, introducing, more, precise, citations, april, 2020, learn, when. This article includes a list of references related reading or external links but its sources remain unclear because it lacks inline citations Please help to improve this article by introducing more precise citations April 2020 Learn how and when to remove this template message The Loader Content Handler Handler or LCHH is a web programming architecture that is closely modeled after the HTTP request response cycle and the 3 tier web structure As its name suggests LCHH defines four key implementation components The Loader is an ID ed DIV container that identifies a partial update region for later content injection The Content that contains both static information and interactive elements also known as Triggers Client side Handlers that process various trigger events such as button clicks Server side Handlers that respond to AJAX requests that are sent by the client side handlers Server side handlers typically perform database CRUD operations before piggy backing the updated content into the aforementioned Loader Example Flow and File Organization of the LCHH ArchitectureComparison with XHR Injection EditLCHH uses the responseText of an XMLHttpRequest to replace the innerHTML value of the target DIV container This is a common AJAX pattern XHR injection alone however does not sum up LCHH The Content in the initial loading of LCHH is instantly generated on the server side as opposed to loading an empty container and then populating the container with another AJAX round trip Piggy backing renewed content after database changes is also characteristic of LCHH LCHH organizes code into four categories Loader and Client side Handlers JavaScript functions are stored in a user facing file that is directly accessible by its URI A server side script that can be included by the user facing file This script outputs the Content A routing script that serves as a single point of call for invoking various AJAX calls Server side handlers typically stored under an include or icl sub directory Each handler is often implemented in a separate script file References Edit LCHH vs MVC October 10 2013 Retrieved April 28 2016 Dong Schien 2015 There is No AJAX The Art of Blending DHTML PHP and MySQL 7th ed pp 338 343 ISBN 978 1435774810 Retrieved from https en wikipedia org w index php title LCHH Architecture amp oldid 949539408, wikipedia, wiki, book, books, library,
