private void updateButtons(){
		if(executionControl != null){
			startStrategyButton.setEnabled(executionControl.isExecutionCanceled());
			pauseButton.setEnabled(!executionControl.isExecutionPaused() && !executionControl.isExecutionCanceled());
			cancelButton.setEnabled(!executionControl.isExecutionCanceled());
			continueButton.setEnabled(executionControl.isExecutionPaused());
		}
	}