com.mchange.v2.lang.reflect.MethodUtils Maven / Gradle / Ivy
/*
* Distributed as part of mchange-commons-java v.0.2.3
*
* Copyright (C) 2012 Machinery For Change, Inc.
*
* Author: Steve Waldman
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 2.1, as
* published by the Free Software Foundation.
*
* 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. 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 this software; see the file LICENSE. If not, write to the
* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*/
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;
}
};
}