Java Reflection Method Signature getMethodSignature(Method method)

Description

get Method Signature

License

Open Source License

Declaration

public static String getMethodSignature(Method method) 

Method Source Code

//package com.java2s;
/*// www.j  a  v  a  2 s . c o m
  GRANITE DATA SERVICES
  Copyright (C) 2011 GRANITE DATA SERVICES S.A.S.
    
  This file is part of Granite Data Services.
    
  Granite Data Services is free software; you can redistribute it and/or modify
  it under the terms of the GNU Library General Public License as published by
  the Free Software Foundation; either version 2 of the License, or (at your
  option) any later version.
    
  Granite Data Services 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 Library General Public License
  for more details.
    
  You should have received a copy of the GNU Library General Public License
  along with this library; if not, see <http://www.gnu.org/licenses/>.
*/

import java.lang.reflect.Method;

public class Main {
    public static String getMethodSignature(Method method) {
        StringBuilder sb = new StringBuilder();
        sb.append(method.getName()).append('(');
        Class<?>[] params = method.getParameterTypes();
        for (int i = 0; i < params.length; i++) {
            if (i > 0)
                sb.append(',');
            sb.append(getTypeSignature(params[i]));
        }
        sb.append(')');
        return sb.toString();
    }

    public static String getTypeSignature(Class<?> type) {
        if (type.isArray()) {
            try {
                int dimensions = 1;
                Class<?> clazz = type.getComponentType();
                while (clazz.isArray()) {
                    dimensions++;
                    clazz = clazz.getComponentType();
                }

                StringBuffer sb = new StringBuffer(clazz.getName());
                while (dimensions-- > 0)
                    sb.append("[]");
                return sb.toString();
            } catch (Throwable e) {
                // fallback...
            }
        }
        return type.getName();
    }
}

Related

1. getMethodSignature(Class[] paramTypes, Class retType)
2. getMethodSignature(Method m)
3. getMethodSignature(Method method)
4. getMethodSignature(Method method)
5. getMethodSignature(Method method)
6. getMethodSignature(Method method)
7. getMethodSignature(Method method)
8. getMethodSignature(Method method)
9. getMethodSignatureWithLongTypeNames(Method method)