Plugins in OJS 2.x are object-oriented. Each plugin extends a class defining its category’s functions and is responsible for implementing them.
Table 5.1. Plugins
| Category | Base Class |
|---|---|
generic |
GenericPlugin (classes/plugins/GenericPlugin.inc.php) |
importexport |
ImportExportPlugin (classes/plugins/ImportExportPlugin.inc.php) |
auth |
AuthPlugin (classes/plugins/AuthPlugin.inc.php) |
gateways |
GatewayPlugin (classes/plugins/GatewayPlugin.inc.php) |
Each base class contains a description of the functions that must be implemented by plugins in that category.
Plugins are managed by the PluginRegistry class (implemented in classes/plugins/PluginRegistry.inc.php). They can register hooks by using the HookRegistry class (implemented in classes/plugins/HookRegistry.inc.php).