AnnotationMemberDeclarationComparator.java

/* 
  Copyright (C) 2013 Raquel Pau and Albert Coroleu.
 
 Walkmod is free software: you can redistribute it and/or modify
 it under the terms of the GNU Lesser General Public License as published by
 the Free Software Foundation, either version 3 of the License, or
 (at your option) any later version.
 
 Walkmod is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public License
 along with Walkmod.  If not, see <http://www.gnu.org/licenses/>.*/
package org.walkmod.javalang.comparators;

import java.util.Comparator;

import org.walkmod.javalang.ast.body.AnnotationMemberDeclaration;

public class AnnotationMemberDeclarationComparator implements
		Comparator<AnnotationMemberDeclaration> {

	@Override
	public int compare(AnnotationMemberDeclaration an1,
			AnnotationMemberDeclaration an2) {
		if (an1.getName() == null || an2.getName() == null) {
			throw new IllegalArgumentException(
					"Annotation member must have a name in order to compare them"
							+ an1 + "-" + an2);
		}
		return an1.getName().compareTo(an2.getName());
	}
}