smartupdater (jQuery periodicalupdater)

Smartupdater jQuery plugin performs periodical updating functionality and can be used in all sorts of applications which need “polling” mechanisms.

Features

Actions:

• stop updating.
• restart updating after stop.
• dynamically reprogram current timeout
• remotely set timeout ( server controls polling period )

Monitor:

• state attribute shows current state ( ON | OFF | undefined )
• timeout attribute shows current timeout

Smart Behavior:

• smart updateing - updates only if new data is different from the old one (text or json only.)
• multiplies polling interval - multiplies polling interval each time data is not changed (text or json only.)
• handle ajax failures - stop to request data after "maxFailedRequests".

List of available functions

• smartupdaterStop() - to stop polling
• smartupdaterRestart() to run polling again
• smartupdaterSetTimeout() - to set a new polling interval

List of available attributes

• smartupdaterStatus.state current state ( ON | OFF | undefined )
• smartupdaterStatus.timeout current timeout

List of available options

• url - URL for the ajax request. (Required!)
• type - Can be either GET or POST (see jQuery.ajax for details)
• data - Array of values to be passed to the page (see jQuery.ajax for details)
• dataType - Response type – can be text, xml, json etc. (see jQuery.ajax for details)
• minTimeout - Starting value for the timeout in milliseconds.
• maxTimeout - Maximum length of time between requests.
• multiplier - Sets the amount of decay between ajax requests. If this is set to 2, the length of time between each request will double while the response doesn’t change.
• maxFailedRequests - smartupdater stops after this number of consecutive ajax failures;

See demo at 

http://www.eslinstructor.net/demo/smartupdater2/smartupdater_home.html

get source of smartupdater2 from:

https://code.google.com/p/smartupdater/downloads/list

Any questions, comments or suggestions are welcome :)