| /******************************************************************************* |
| * Copyright (c) 2000, 2016 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.wst.jsdt.internal.ui.browsing; |
| |
| import java.util.Comparator; |
| |
| import org.eclipse.wst.jsdt.core.IJavaScriptElement; |
| |
| public class JavaElementTypeComparator implements Comparator { |
| |
| |
| /** |
| * Compares two Java element types. A type is considered to be |
| * greater if it may contain the other. |
| * |
| * @return an int less than 0 if object1 is less than object2, |
| * 0 if they are equal, and > 0 if object1 is greater |
| * |
| * @see Comparator#compare(Object, Object) |
| */ |
| public int compare(Object o1, Object o2) { |
| if (!(o1 instanceof IJavaScriptElement) || !(o2 instanceof IJavaScriptElement)) |
| throw new ClassCastException(); |
| return getIdForJavaElement((IJavaScriptElement)o1) - getIdForJavaElement((IJavaScriptElement)o2); |
| } |
| |
| /** |
| * Compares two Java element types. A type is considered to be |
| * greater if it may contain the other. |
| * |
| * @return an int < 0 if object1 is less than object2, |
| * 0 if they are equal, and > 0 if object1 is greater |
| * |
| * @see Comparator#compare(Object, Object) |
| */ |
| public int compare(Object o1, int elementType) { |
| if (!(o1 instanceof IJavaScriptElement)) |
| throw new ClassCastException(); |
| return getIdForJavaElement((IJavaScriptElement)o1) - getIdForJavaElementType(elementType); |
| } |
| |
| int getIdForJavaElement(IJavaScriptElement element) { |
| return getIdForJavaElementType(element.getElementType()); |
| } |
| |
| int getIdForJavaElementType(int elementType) { |
| switch (elementType) { |
| case IJavaScriptElement.JAVASCRIPT_MODEL: |
| return 130; |
| case IJavaScriptElement.JAVASCRIPT_PROJECT: |
| return 120; |
| case IJavaScriptElement.PACKAGE_FRAGMENT_ROOT: |
| return 110; |
| case IJavaScriptElement.PACKAGE_FRAGMENT: |
| return 100; |
| case IJavaScriptElement.JAVASCRIPT_UNIT: |
| return 90; |
| case IJavaScriptElement.CLASS_FILE: |
| return 80; |
| case IJavaScriptElement.TYPE: |
| return 70; |
| case IJavaScriptElement.FIELD: |
| return 60; |
| case IJavaScriptElement.METHOD: |
| return 50; |
| case IJavaScriptElement.INITIALIZER: |
| return 40; |
| case IJavaScriptElement.IMPORT_CONTAINER: |
| return 20; |
| case IJavaScriptElement.IMPORT_DECLARATION: |
| return 10; |
| case IJavaScriptElement.EXPORT_CONTAINER: |
| return 20; |
| case IJavaScriptElement.EXPORT_DECLARATION: |
| return 10; |
| default : |
| return 1; |
| } |
| } |
| } |