Bug 296691 Change new Groups API to Virtual Resource API
If we decide that 'virtual' is the right naming for new resources concept, I will make the following changes. Add IResource#VIRTUAL flag to use in #create methods Add IResource#isVirtual indicating that a resource is virtual Remove IResource#isGroup Remove IFolder#createGroup
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/wizards/datatransfer/ImportOperation.java
if (this.overwriteState == OVERWRITE_NOT_SET
                    && !queryOverwrite(targetFile.getFullPath())) {
				return false;
			}
            if (this.overwriteState == OVERWRITE_NONE) {
				return false;
			}
        }
        return true;
    }
    /**
     * Sets the context for use by the VCM provider to prompt the user
     * for check-out of files.
     * 
     * @param shell context for use by the VCM provider to prompt user
     * 	for check-out. The user will not be prompted if set to <code>null</code>.
     * @see IWorkspace#validateEdit(org.eclipse.core.resources.IFile[], java.lang.Object)
     * @since 2.1
     */
    public void setContext(Shell shell) {
        context = shell;
    }
    /**
     * Sets whether the containment structures that are implied from the full paths
     * of file system objects being imported should be duplicated in the workbench.
     *
     * @param value <code>true</code> if containers should be created, and
     *  <code>false</code> otherwise
     */
    public void setCreateContainerStructure(boolean value) {