org.gnu.glpk

Class GlpkTerminal

java.lang.Object

org.gnu.glpk.GlpkTerminal

public final class GlpkTerminal
extends Object

This class manages terminal output.

GLPK will call method callback before producing terminal output. A listener can inhibit the terminal output by returning false in the output routine.

The list of listeners is thread local. Each thread has to register its own listener.

If a GlpkExeption has occured it is necessary to call

 GLPK.glp_term_hook(null, null);

to reenable listening to terminal output.

See Also:

GlpkTerminalListener, GlpkException, GLPK.glp_term_hook(SWIGTYPE_p_f_p_void_p_q_const__char__int, SWIGTYPE_p_void)

Method Summary

Modifier and Type	Method and Description
static void	addListener(GlpkTerminalListener listener) Add listener.
static int	callback(String str) Callback function called by native library.
static void	removeAllListeners() Remove all listeners.get().
static boolean	removeListener(GlpkTerminalListener listener) Removes first occurance of listener.

Methods inherited from class java.lang.Object

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

Method Detail

callback

public static int callback(String str)

Callback function called by native library. Output to the console is created if any of the listeners.get() requests it.

Parameters:

str - string to be written to console

Returns:

0 if output is requested

addListener

public static void addListener(GlpkTerminalListener listener)

Add listener.

Parameters:

listener - listener for terminal output

removeListener

public static boolean removeListener(GlpkTerminalListener listener)

Removes first occurance of listener.

Parameters:

listener - listener for terminal output

Returns:

true if listener was found

removeAllListeners

public static void removeAllListeners()

Remove all listeners.get().