de.upb.swt.epctools.simulator
Class EPCComputationThread

java.lang.Object
  de.upb.swt.epctools.simulator.EPCComputationThread

Direct Known Subclasses:

EPCSimulator.RefreshHighlightingComputationThread, EPCSimulator.RefreshInformationComputationThread

public abstract class EPCComputationThread
extends java.lang.Object

Nested Class Summary

class	EPCComputationThread.CancelDialog This class implements a SWT Dialog with a cancel button.
class	EPCComputationThread.NonExclusiveComputationThread This class implements the thread mechanism but without a check whether an old thread is still running.

Field Summary

private boolean	m_aborted
private static EPCComputationThread	m_current_computation_thread
private java.lang.String	m_dialog_title
private EPCComputationThread.NonExclusiveComputationThread	m_ne_computation_thread
private static int	m_running_computation_threads
private boolean	m_use_thread_mechanism

Constructor Summary

EPCComputationThread(java.lang.String dialog_title)
Constructor

Method Summary

void	abortComputation() This function is called when the cancel button has been pushed It should be implemented by the sub-class.
static EPCComputationThread	getCurrentComputationThread() Returns the current computation thread.
EPCComputationThread.CancelDialog	getDialog()
boolean	isAborted()
static boolean	isThreadRunning()
boolean	isUsed() Returns true if the thread mechanism is used.
abstract void	performComputation() This is the method that will run in a separated thread.
void	setDialogTitle(java.lang.String dialog_title)
abstract void	startComputation() This function should be implemented by the sub-class and should start a compuation using the overloaded startComputation(...) function.
protected void	startComputation(boolean in_a_thread) This function starts the computation in a new thread verifying that no other instance is already running.

Methods inherited from class java.lang.Object

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

Field Detail

m_current_computation_thread

private static EPCComputationThread m_current_computation_thread

m_running_computation_threads

private static int m_running_computation_threads

m_ne_computation_thread

private EPCComputationThread.NonExclusiveComputationThread m_ne_computation_thread

m_dialog_title

private java.lang.String m_dialog_title

m_use_thread_mechanism

private boolean m_use_thread_mechanism

m_aborted

private boolean m_aborted

Constructor Detail

EPCComputationThread

public EPCComputationThread(java.lang.String dialog_title)

Constructor

Method Detail

getCurrentComputationThread

public static EPCComputationThread getCurrentComputationThread()

Returns the current computation thread. Note that there can never be two computation threads running at the same time.

performComputation

public abstract void performComputation()
                                 throws EPCComputationException

This is the method that will run in a separated thread. This function is called in the dependent inner class NonExclusiveComputationThread.

Throws:

EPCComputationException

startComputation

public abstract void startComputation()
                               throws EPCComputationException

This function should be implemented by the sub-class and should start a compuation using the overloaded startComputation(...) function.

Throws:

EPCComputationException

abortComputation

public void abortComputation()

This function is called when the cancel button has been pushed It should be implemented by the sub-class.

startComputation

protected void startComputation(boolean in_a_thread)
                         throws EPCComputationException

This function starts the computation in a new thread verifying that no other instance is already running.

Throws:

EPCComputationException

getDialog

public final EPCComputationThread.CancelDialog getDialog()

setDialogTitle

public final void setDialogTitle(java.lang.String dialog_title)

isUsed

public final boolean isUsed()

Returns true if the thread mechanism is used.

isThreadRunning

public static boolean isThreadRunning()

isAborted

public boolean isAborted()