com.google.gwt.place.rebind.MostToLeastDerivedPlaceTypeComparator Maven / Gradle / Ivy
/*
* 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 java.util.Comparator;
/**
* Sorts types from most derived to least derived, falling back to alphabetical
* sorting.
*/
public class MostToLeastDerivedPlaceTypeComparator implements
Comparator {
public int compare(JClassType o1, JClassType o2) {
if (o1.equals(o2)) {
return 0;
}
if (o1.isAssignableFrom(o2)) {
return 1;
}
if (o1.isAssignableTo(o2)) {
return -1;
}
return o1.getQualifiedSourceName().compareTo(o2.getQualifiedSourceName());
}
}