Examples with UndoablePackageDeleteChange org.eclipse.jdt.internal.corext.refactoring.changes.UndoablePackageDeleteChange used on opensource projects

Example 1 with UndoablePackageDeleteChange

use of org.eclipse.jdt.internal.corext.refactoring.changes.UndoablePackageDeleteChange in project che by eclipse.

the class DeleteChangeCreator method createDeleteChange.

/**
	 * @param manager the text change manager
	 * @param resources the resources to delete
	 * @param javaElements the Java elements to delete
	 * @param changeName the name of the change
	 * @param packageDeletes a list of {@link IResource}s that will be deleted
	 *        by the delete operation of the {@link IPackageFragment}s in
	 *        <code>javaElements</code>, or <code>null</code> iff
	 *        <code>javaElements</code> does not contain package fragments
	 * @return the created change
	 * @throws CoreException
	 */
static Change createDeleteChange(TextChangeManager manager, IResource[] resources, IJavaElement[] javaElements, String changeName, List<IResource> packageDeletes) throws CoreException {
    /*
		 * Problem: deleting a package and subpackages can result in
		 * multiple package fragments in fJavaElements but only
		 * one folder in packageDeletes. The way to handle this is to make the undo
		 * change of individual package delete changes an empty change, and
		 * add take care of the undo in UndoablePackageDeleteChange.
		 */
    DynamicValidationStateChange result;
    if (packageDeletes.size() > 0) {
        result = new UndoablePackageDeleteChange(changeName, packageDeletes);
    } else {
        result = new DynamicValidationStateChange(changeName);
    }
    for (int i = 0; i < javaElements.length; i++) {
        IJavaElement element = javaElements[i];
        if (!ReorgUtils.isInsideCompilationUnit(element))
            result.add(createDeleteChange(element));
    }
    for (int i = 0; i < resources.length; i++) {
        result.add(createDeleteChange(resources[i]));
    }
    Map<ICompilationUnit, List<IJavaElement>> grouped = ReorgUtils.groupByCompilationUnit(getElementsSmallerThanCu(javaElements));
    if (grouped.size() != 0) {
        Assert.isNotNull(manager);
        for (Iterator<ICompilationUnit> iter = grouped.keySet().iterator(); iter.hasNext(); ) {
            ICompilationUnit cu = iter.next();
            result.add(createDeleteChange(cu, grouped.get(cu), manager));
        }
    }
    return result;
}