NodeModel Intro

A NodeModel is created with the following constructor, which defines the number of in- and out-ports:

public MyNodeModel() {
    // creates a node with 2 inports and 1 outport
    super(2, 1);
}

The functionality of a specific node implementation is defined by the following methods:

1. configure(DataTableSpec[])
2. execute(BufferedDataTable[], ExecutionContext
3. loadInternals(File, ExecutionMonitor)
4. loadValidatedSettingsFrom(NodeSettingsRO)
5. notifyViews(Object)
6. reset()
7. saveInternals(File, ExecutionMonitor)
8. saveSettingsTo(NodeSettingsWO)
9. setWarningMessage(String)
10. validateSettings(NodeSettingsRO)