Method and apparatus for performing user notification

A method for performing user notification comprising:

• extracting one or more service classes from each of one or more sub-components loaded in transient memory, wherein each of said one or more service classes comprises at least one user notification function associated with said each of said one or more sub-components;
• a manager mechanism instantiating said one or more service classes;
• unloading said one or more sub-components in response to a low memory condition of said transient memory;
• executing each of said one or more service classes as a thread independent of said one or more sub-components;
• and
• performing, in said one or more service classes, said at least one user notification function associated with said each of one or more sub-components such that said at least one user notification function is maintained when said each of said one or more sub-components is unloaded in response to a low memory condition of said transient memory.

A computer program product comprising:

• a computer usable medium having computer readable code embodied therein for performing user notification, said computer program product comprising:
• computer readable code configured to cause a computer to extract one or more service classes from each of one or more sub-components loaded in transient memory, wherein each of said one or more service classes comprises at least one user notification function associated with said each of said one or more sub-components;
• computer readable code configured to cause a manager mechanism to instantiate said one or more service classes;
• computer readable code configured to cause a computer to unload said one or more sub-component under a low memory condition of said transient memory;
• computer readable code configured to cause a computer to execute each of said one or more service classes as a thread independent of said one or more sub-components;
• and
• computer readable code configured to cause a computer to perform, in said one or more service classes, said at least one user notification function associated with said each of said one or more sub-components such that said at least one user notification function is maintained when said each of said one or more sub-components is unloaded in response to a low memory condition of said transient memory.

A memory configured to store data for access by a runtime environment executing in a computer system, comprising:

• a data structure stored in transient memory, said data structure comprising:
• an applet;
• a service class extracted from said applet, said service class comprising an event queue and a plurality of methods, wherein said applet is configured to invoke one or more of said plurality of methods of said service class, wherein said applet is further configured to place an event on said event queue, said plurality of methods comprising:
• a reference method configured to return a reference to an instance of said service class;
• a service method configured to perform a service;
• an event method configured to handle one or more events;
• a manager application associating said applet with said service class, said manager application configured to instantiate said service class as a thread to be run independently of said applet, said manager application configured to unload said applet in response to a low memory condition of said transient memory, wherein said service is maintained when said applet is unloaded in response to said low memory condition.