/* * Copyright 2010 Google Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); you may not * use this file except in compliance with the License. You may obtain a copy of * the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations under * the License. */ package com.google.gwt.place.rebind; import com.google.gwt.core.ext.typeinfo.JClassType; import com.google.gwt.thirdparty.guava.common.collect.ComparisonChain; import java.util.Comparator; /** * Sorts types from most derived to least derived, falling back to alphabetical * sorting. */ class MostToLeastDerivedPlaceTypeComparator implements Comparator<JClassType> { public int compare(JClassType o1, JClassType o2) { if (o1.equals(o2)) { return 0; } return ComparisonChain.start() // We want the longest first, so we put o2 before o1 in the comparison chain. .compare(o2.getFlattenedSupertypeHierarchy().size(), o1.getFlattenedSupertypeHierarchy().size()) .compare(o1.getQualifiedSourceName(), o2.getQualifiedSourceName()) .result(); } }