com.mchange.v2.lang.reflect.MethodUtils Maven / Gradle / Ivy
/*
* Distributed as part of mchange-commons-java 0.2.11
*
* Copyright (C) 2015 Machinery For Change, Inc.
*
* Author: Steve Waldman
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of EITHER:
*
* 1) The GNU Lesser General Public License (LGPL), version 2.1, as
* published by the Free Software Foundation
*
* OR
*
* 2) The Eclipse Public License (EPL), version 1.0
*
* You may choose which license to accept if you wish to redistribute
* or modify this work. You may offer derivatives of this work
* under the license you have chosen, or you may provide the same
* choice of license which you have been offered here.
*
* This software 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.
*
* You should have received copies of both LGPL v2.1 and EPL v1.0
* along with this software; see the files LICENSE-EPL and LICENSE-LGPL.
* If not, the text of these licenses are currently available at
*
* LGPL v2.1: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* EPL v1.0: http://www.eclipse.org/org/documents/epl-v10.php
*
*/
package com.mchange.v2.lang.reflect;
import java.lang.reflect.Method;
import java.util.Comparator;
public final class MethodUtils
{
public final static Comparator METHOD_COMPARATOR = new Comparator()
{
public int compare(Object a, Object b)
{
Method aa = (Method) a;
Method bb = (Method) b;
String aName = aa.getName();
String bName = bb.getName();
int out = String.CASE_INSENSITIVE_ORDER.compare(aName, bName);
if (out == 0)
{
if (aName.equals(bName))
{
Class[] aParams = aa.getParameterTypes();
Class[] bParams = bb.getParameterTypes();
if (aParams.length < bParams.length)
out = -1;
else if (aParams.length > bParams.length)
out = 1;
else
{
for (int i = 0, len = aParams.length; i < len; ++i)
{
String apName = aParams[i].getName();
String bpName = bParams[i].getName();
out = apName.compareTo( bpName);
if (out != 0)
break;
}
}
}
else
{
out = aName.compareTo(bName);
}
}
return out;
}
};
}