Dependency Injection for Plugins
If you want to share a single instance of a certain class between plugin
extensions and custom operations (to prevent instances from being repeated), you can declare a
<context> element in your plugin.xml
file:<context class="my.package.ContextClass"/>
Important: The
my.package.ContextClass class
should have a no-arguments constructor that will be called when the class is
instantiated.This will result in an instance being automatically generated. You can
access this instance in an extension class by defining a field of that type and annotated with
the
ro.sync.exml.plugin.PluginContext
annotation:@PluginContext
ContextClass contextInstance;The defined field is automatically populated with the single instance.