org.hecl
Interface ClassCommand

All Known Implementing Classes:

AlertCmd, AnonProc, CanvasCmd, ChoiceGroupCmd, CommandCmd, DateFieldCmd, DisplayableCmd, EventCmd, FormCmd, GraphicsCmd, HeclStreamCmds, ImageCmd, ImageItemCmd, ItemCmd, JavaCmd, ListCmd, OptionCmd, ScreenCmd, SettingsCmd, SpacerCmd, StringItemCmd, TextBoxCmd, TextFieldCmd, TickerCmd

public interface ClassCommand

The ClassCommand interface is the template for all commands implemented in Java working on Hecl ObjectThing.

Version:

1.0

Author:

Wolfgang S. Kechel

method

Thing method(Interp interp,
             ClassCommandInfo context,
             Thing[] argv)
             throws HeclException

The method method takes an interpreter, a class information and an array of Things, performs some calculations, and returns a Thing which may be null. The interpreter calls this method when it detects an ObjectThing as first argument of a command on the script level and detects a command handler for the class of the value of the ObjectThing.

Parameters:

interp - an Interp value

context - A reference to the ClassInfo> describing further details of th emethod.

argv - A Thing[] array holding the parameters for the method. The 0th element is the object, the 1st element is the method.

Throws:

HeclException - if an error occurs