Java Code Examples for org.eclipse.ltk.core.refactoring.CompositeChange#remove()

@Override
public Change postCreateChange(Change[] participantChanges, IProgressMonitor pm) throws CoreException {
	if (fQualifiedNameSearchResult != null) {
		CompositeChange parent= (CompositeChange) fRenamePackageChange.getParent();
		try {
			/*
			 * Sneak text changes in before the package rename to ensure
			 * modified files are still at original location (see
			 * https://bugs.eclipse.org/bugs/show_bug.cgi?id=154238)
			 */
			parent.remove(fRenamePackageChange);
			parent.add(fQualifiedNameSearchResult.getSingleChange(Changes.getModifiedFiles(participantChanges)));
		} finally {
			fQualifiedNameSearchResult= null;
			parent.add(fRenamePackageChange);
			fRenamePackageChange= null;
		}
	}
	return null;
}
 

/**
 * Inserts a change at the specified index.
 * 
 * @param change the change to insert
 * @param insertIndex the index to insert at (if >= the number of children, it
 *          will be added to the end)
 * @param parentChange the new parent of the change
 */
public static void insertChange(Change change, int insertIndex,
    CompositeChange parentChange) {
  Change[] changes = parentChange.getChildren();

  if (insertIndex >= changes.length) {
    parentChange.add(change);
  } else {
    // CompositeChange.clear does not clear the parent field on the removed
    // changes, but CompositeChange.remove does
    for (Change curChange : changes) {
      parentChange.remove(curChange);
    }

    for (int i = 0; i < changes.length; i++) {
      if (i == insertIndex) {
        parentChange.add(change);
      }
      parentChange.add(changes[i]);
    }
  }
}
 

@Override
public Change postCreateChange(Change[] participantChanges, IProgressMonitor pm) throws CoreException {
	if (fQualifiedNameSearchResult != null) {
		CompositeChange parent= (CompositeChange) fRenamePackageChange.getParent();
		try {
			/*
			 * Sneak text changes in before the package rename to ensure
			 * modified files are still at original location (see
			 * https://bugs.eclipse.org/bugs/show_bug.cgi?id=154238)
			 */
			parent.remove(fRenamePackageChange);
			parent.add(fQualifiedNameSearchResult.getSingleChange(Changes.getModifiedFiles(participantChanges)));
		} finally {
			fQualifiedNameSearchResult= null;
			parent.add(fRenamePackageChange);
			fRenamePackageChange= null;
		}
	}
	return null;
}
 

protected void visitChange(Change sourceChange, Map<Object, TextChange> resource2textChange, List<Change> otherChanges, Set<IEditorPart> editorsToSave) {
	if (sourceChange instanceof DisplayChangeWrapper.Wrapper) 
		visitChange(((DisplayChangeWrapper.Wrapper) sourceChange).getDelegate(), resource2textChange, otherChanges, editorsToSave);
	else if (sourceChange instanceof CompositeChange) {
		visitCompositeChange((CompositeChange) sourceChange, resource2textChange, otherChanges, editorsToSave);
	} else if (sourceChange instanceof TextChange) {
		if (sourceChange instanceof EditorDocumentChange) 
			editorsToSave.add(((EditorDocumentChange) sourceChange).getEditor());
		Object key = getKey((TextChange) sourceChange);
		if (key != null) {
			TextChange textChange = resource2textChange.get(key);
			if (textChange == null) {
				textChange = createTextChange(key, ((TextChange) sourceChange).getTextType());
				resource2textChange.put(key, textChange);
			}
			MultiTextEdit combinedEdits = (MultiTextEdit) textChange.getEdit();
			TextEdit newEdit = ((TextChange) sourceChange).getEdit().copy();
			if (newEdit instanceof MultiTextEdit) {
				for (TextEdit newTextEdit : ((MultiTextEdit) newEdit).getChildren()) {
					addIfNotDuplicate(combinedEdits, newTextEdit);
				}
			} else {
				addIfNotDuplicate(combinedEdits, newEdit);
			}
		}
	} else {
		CompositeChange parent = (CompositeChange) sourceChange.getParent();
		if(parent != null)
			parent.remove(sourceChange);
		otherChanges.add(sourceChange);
	}
}
 

/**
 * Removes a change and returns its old index, or -1 if it was not found.
 */
public static int removeChange(Change change, CompositeChange parentChange) {
  Change[] changes = parentChange.getChildren();
  for (int index = 0; index < changes.length; index++) {
    if (changes[index] == change) {
      parentChange.remove(change);
      return index;
    }
  }

  return -1;
}
 

private void unregisterChangeAtParent(Change change) {
	if (change != null) {
		CompositeChange parent = change2Parent.remove(change);
		parent.remove(change);
	}
}