import org.eclipse.gef.editpolicies.AbstractEditPolicy; //导入依赖的package包/类
/**
 * Apply general policy.
 * 
 * @param component
 *            the component
 * @throws Exception
 *             the exception
 */
public void applyGeneralPolicy(
		hydrograph.ui.common.component.config.Component component)
		throws Exception {

	for (Policy generalPolicy : XMLConfigUtil.INSTANCE.getPoliciesForComponent(component)) {
		try {
			AbstractEditPolicy editPolicy = (AbstractEditPolicy) Class.forName(generalPolicy.getValue()).newInstance();
			installEditPolicy(generalPolicy.getName(), editPolicy);
		} catch (ClassNotFoundException| InstantiationException | IllegalAccessException exception) {
			logger.error("Failed to apply policies", exception);
			throw exception;
		}
	}
}
 

import org.eclipse.gef.editpolicies.AbstractEditPolicy; //导入依赖的package包/类
public TimelineFeedbackManager(TimelineViewer timelineViewer, EPlan plan,
                               AbstractEditPolicy policy) {
	this.timelineViewer = timelineViewer;
	this.editPolicy = policy;
	layerManager = (LayerManager)timelineViewer.getEditPartRegistry().get(LayerManager.ID);
	feedbackLayerData = layerManager.getLayer(TimelineConstants.LAYER_FEEDBACK_DATA);
	map = new HashMap<Rectangle, InvalidRangeRectangleFigure>();
   planAdvisorMember = PlanAdvisorMember.get(plan);
   timelineViewer.getControl().addDragDetectListener( this );
   timelineViewer.getControl().addMouseListener( this );
}