Architecture

JAddin Framework

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JAddin Framework

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Architecture

Some background information on the framework architecture

Framework Architecture
JAddin.class
The JAddin class is loaded by the HCL Domino RunJava task as the main Java thread. It executes under the control of RunJava and shares the HCL Domino Java Virtual Machine (JVM) with RunJava.
Main functions of JAddin thread:
Initialize the JAddin framework
Dynamically loads and starts the user add-in as a subclass of JAddinThread
Monitors the Java heap space usage and calls the garbage collector if needed
Acts on special framework commands (see command Help!)
Supports internal debugging thru Debug! command
Backcalls the user implemented methods addInXXX() (see below)
JAddinThread.class
This abstract class must be implemented by the user add-in class. It runs as a separate thread to minimize any delays on the normal processing of the HCL Domino server.
Initialize the runtime environment
Calls the user class thru addinStart()
Includes several methods for accessing HCL Domino objects and the server environment
AddinName.class
The user code runs in this subclass of JAddinThread and does all the processing of the application. Several callback methods are invoked from the framework which can or must be implemented by the user class. When the user class terminates, the framework will perform its cleanup and terminates the JAddin main thread.
Method
Required
Description
addinStart()
Yes
Main entry point of the application code
addinCommand()
No
Called for any console command entered
addinStop()
Yes
Called before termination
addinNextHour()
No
Called at each new hour
addinNextDay()
No
Called at each new day
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Framework Architecture

JAddin.class

JAddinThread.class

AddinName.class