com.wolfram.jlink

Class MathItemListener

java.lang.Object

com.wolfram.jlink.MathListener

com.wolfram.jlink.MathItemListener

All Implemented Interfaces:

java.awt.event.ItemListener, java.util.EventListener

public class MathItemListener
extends MathListener
implements java.awt.event.ItemListener

This class lets you trigger a call into Mathematica on the occurrence of a particular event. Like all the MathXXXListener classes, it is intended to be used primarily from Mathematica, although it can be used from Java code as well.

In response to an ItemEvent, objects of this class send to Mathematica:

     userCode[theItemEvent, theItemEvent.getStateChange()]

userFunc is specified as a string, either a function name or an expression (like a pure function "foo[##]&"), via the setHandler() method.

Constructor Summary

Constructors

Constructor and Description
MathItemListener() The constructor that is typically called from Mathematica.
MathItemListener(KernelLink ml) You must use this constructor when using this class in a Java program, because you need to specify the KernelLink that will be used.
MathItemListener(java.lang.String func) Because the ItemListener interface has only one method, itemStateChanged(), you can specify the Mathematica function to be called with this constructor, rather than having to separately call setHandler().

Method Summary

Modifier and Type	Method and Description
void	itemStateChanged(java.awt.event.ItemEvent e)

Methods inherited from class com.wolfram.jlink.MathListener

callMathHandler, callVoidMathHandler, getHandler, getLink, setHandler

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MathItemListener

public MathItemListener()

The constructor that is typically called from Mathematica.

MathItemListener

public MathItemListener(KernelLink ml)

You must use this constructor when using this class in a Java program, because you need to specify the KernelLink that will be used.

Parameters:

ml - The link to which computations will be sent when itemStateChanged is called.

MathItemListener

public MathItemListener(java.lang.String func)

Because the ItemListener interface has only one method, itemStateChanged(), you can specify the Mathematica function to be called with this constructor, rather than having to separately call setHandler(). Use this constructor from Mathematica code only.

Parameters:

func - The Mathematica function to be executed in response to an ItemEvent.

Method Detail

itemStateChanged

public void itemStateChanged(java.awt.event.ItemEvent e)

Specified by:

itemStateChanged in interface java.awt.event.ItemListener