Java ChangeKind类代码示例

import org.eclipse.emf.ecore.change.ChangeKind; //导入依赖的package包/类
@Override
void execute() {
	ListChange listChange = null;
	
	if (newElement instanceof BinaryTemporalConstraint){
		listChange = createListFeatureChange(ChangeKind.ADD_LITERAL, position, (EObject)newElement);
		addToChangeDescription(parent, featureOfElement, listChange, changeDescription2);
	}
	else if(newElement instanceof TemporalChain){
		FeatureChange featureChange = createFeatureChange(parent, featureOfElement, newElement);
		addToChangeDescription(parent, featureOfElement, featureChange, changeDescription2);
	}
	else {
		listChange = createListFeatureChange(ChangeKind.ADD_LITERAL, position, (EObject)newElement);
		addToChangeDescription(parent, featureOfElement, listChange, changeDescription1);
	}
}
 

import org.eclipse.emf.ecore.change.ChangeKind; //导入依赖的package包/类
/** For completion. To ensure a proper FeatureChange use <i>createFeatureChange()</i> methods.
 * @param target
 * @param feature
 * @param indexToRemove
 * @return
 */
public static FeatureChange createRemoveFromListFeatureChange(EObject target, EStructuralFeature feature, int indexToRemove) {
	Object value = target.eGet(feature);
	FeatureChange fc = null;
	if(value instanceof List) {
		if ((((List) value).size() - 1) < indexToRemove)
			return null;

		fc = factory.createFeatureChange(feature, value, false);
		EObject object = (EObject) ((List) value).get(indexToRemove);
		ListChange listChange = createListFeatureChange(ChangeKind.REMOVE_LITERAL, indexToRemove, object);
		fc.getListChanges().add(listChange);
	}

	return fc;
}
 

import org.eclipse.emf.ecore.change.ChangeKind; //导入依赖的package包/类
protected static void processFeatureChange(EObject affectedObj, FeatureChange fc, String prefix) {
	
    System.err.println(prefix + "Feature change on feature " + fc.getFeatureName());
    System.err.println("\t  Target value: " + fc.getValue());
    System.err.println("\tRollback value: " + affectedObj.eGet(fc.getFeature()));
	for (ListChange lc : fc.getListChanges()) {
		if (lc.getKind() == ChangeKind.ADD_LITERAL) {
			System.err.println(prefix + "\t - Adding Children: " + lc.getValues());
		}
		else if (lc.getKind() == ChangeKind.REMOVE_LITERAL) {
			System.err.println(prefix + "\t - Deleting Children: " + lc.getValues());
		}
	}
}
 

import org.eclipse.emf.ecore.change.ChangeKind; //导入依赖的package包/类
protected ListChange createAddListChange(EStructuralFeature feature, Object newObject, int index) {
	if (index < 0 || index > aggregatingSize) {
		throw new ArrayIndexOutOfBoundsException(index);
	}
	ListChange listChange = createListChange(ChangeKind.ADD_LITERAL, index);
	listChange.setFeature(feature);
	if (feature instanceof EAttribute)  {
		listChange.getValues().add(newObject);
	} else {
		listChange.getReferenceValues().add((EObject) newObject);
	}
	aggregatingSize++;
	getListChanges().add(listChange);
	return listChange;
}
 

import org.eclipse.emf.ecore.change.ChangeKind; //导入依赖的package包/类
/** This method creates a ListChange with the proper ChangeKind, index and referenced object.
 * 
 * @param kind - ChangeKind (ADD or REMOVE)
 * @param index - where the change is going to happen
 * @param object - object to ADD or REMOVE
 * @return ListChange
 */
public static ListChange createListFeatureChange(ChangeKind kind, int index, EObject object) {
	ListChange listChange = factory.createListChange();
	listChange.setKind(kind);
	listChange.getReferenceValues().add(object);
	listChange.setIndex(index);	
	return listChange;
}
 

import org.eclipse.emf.ecore.change.ChangeKind; //导入依赖的package包/类
/** For completion. To ensure a proper FeatureChange use <i>createFeatureChange()</i> methods.
 * @param target
 * @param feature
 * @param objectToAdd
 * @param whereToAdd
 * @return
 */
public static FeatureChange createAddToListFeatureChange(EObject target, EStructuralFeature feature, EObject objectToAdd, int whereToAdd) {
	Object value = target.eGet(feature);
	FeatureChange fc = null;
	if(value instanceof List) {
		if ((((List) value).size() - 1) < whereToAdd)
			whereToAdd = ((List) value).size();

		fc = factory.createFeatureChange(feature, value, true);
		ListChange listChange = createListFeatureChange(ChangeKind.ADD_LITERAL, whereToAdd, objectToAdd);
		fc.getListChanges().add(listChange);
	}

	return fc;
}
 

import org.eclipse.emf.ecore.change.ChangeKind; //导入依赖的package包/类
protected ListChange createRemoveListChange(int index) {
	ListChange listChange = createListChange(ChangeKind.REMOVE_LITERAL, index);
	getListChanges().add(listChange);
	aggregatingSize--;
	return listChange;
}
 

import org.eclipse.emf.ecore.change.ChangeKind; //导入依赖的package包/类
protected ListChange createMoveListChange(int index, int toIndex) {
	ListChange listChange = createListChange(ChangeKind.MOVE_LITERAL, index);
	listChange.setMoveToIndex(toIndex);
	getListChanges().add(listChange);
	return listChange;
}
 

import org.eclipse.emf.ecore.change.ChangeKind; //导入依赖的package包/类
protected static ListChange createListChange(ChangeKind kind, int index) {
	ListChange listChange = ChangeFactory.eINSTANCE.createListChange();
	listChange.setKind(kind);
	listChange.setIndex(index);
	return listChange;
}