/** * Sets the strategy. * * @param strategy the strategy to set * @exception IllegalArgumentException * <ul> * <li>ERROR_NULL_ARGUMENT - if the strategy is null * </ul> * * @exception SWTException * <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver * </ul> */ @SuppressWarnings("null") public void setStrategy(AbstractGroupStrategy strategy) { checkWidget(); if (strategy == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); this.strategy = strategy; setForeground(null); strategy.initialize(this); }