AJAX Locking
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Innovation award Nominee: 3x | |||||||||||||||||||
This package can be used lock server side resources to prevent race conditions that may occur when two users want to access the same resource simultaneously.
It uses AJAX to lock and unlock resources from Javascript code running on the browser, thus without reloading the current page.
The package comes with several drivers that can use different containers to manage the resource lock information. Currently it supports two drivers for SQL databases and shared memory as containers.
It uses AJAX to lock and unlock resources from Javascript code running on the browser, thus without reloading the current page.
The package comes with several drivers that can use different containers to manage the resource lock information. Currently it supports two drivers for SQL databases and shared memory as containers.
| Classes of Fabio Ambrosanio | > | AJAX Locking | > | Download .zip .tar.gz | > |  Support forum (1) |
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Language | Constructs to assist in the language control | View top rated classes |
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AJAX | Interact with the Web server without page reloading | View top rated classes |
| Innovation Award | ||
 November 2006 Number 3 Prize: One book of choice by SAMS |
AJAX applications may trigger multiple requests to the Web server that can occur at the same time. If different requests attempt to access and change the same server side resources at the same time, this may lead to race conditions that may cause undesired effects. This class provides a solution that can be used to prevent this problem. It can lock server side resources that are being manipulated upon browser side events that trigger AJAX requests. Manuel Lemos |
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| Applications that use this class | ||
No application links were specified for this class.
If you know an application of this package, send a message to the author to add a link here.| Related links | ||
| Link | Description |
|---|---|
| AJAX_Locking homepage | Description of the project and related links |
| API documentation | Documentation generated with PHPDocumentor |
| My own PEAR channel | PEAR channel where you can download this package |
| Files |
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| File | Role | Description | ||
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| Driver (4 files) |
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| js (1 file) |
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| tests (7 files) |
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 README.txt |
Doc. | README | ||
| AJAX_Locking.php |
Class | PEAR HTML_AJAX class | ||
| Files | / | Driver |
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| File | Role | Description |
|---|---|---|
| Driver.php |
Class | Base class for AJAX_Locking drivers |
| File.php |
Class | Driver based on plain filesystem |
| MDB2.php |
Class | Driver based on PEAR's MBD2 package |
| SharedMemory.php |
Class | Driver based on PEAR's System_SharedMemory package |
| Files | / | tests |
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| File | Role | Description |
|---|---|---|
 locked.png |
Icon | locked image |
| owned.png |
Icon | owned image |
| server.php |
Aux. | Example AJAX server |
 test.html |
Data | Test/Example |
| timeoutpng |
Icon | timeout image |
| unlocked.png |
Icon | unlocked image |
| _test.php |
Example | Test/example |
| Download all files: ajax_locking.tar.gz ajax_locking.zip |
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