Java tutorial
//package com.java2s; /* * This file is part of the PanoramaGL library for Android. * * Authors: Javier Baez <javbaezga@gmail.com> and Miguel auay <mg_naunay@hotmail.com> * * $Id$ * * This 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; version 3 of * the License * * 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; if not, write to the Free * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA, or see the FSF site: http://www.fsf.org. */ import java.lang.reflect.Method; import java.util.HashMap; public class Main { protected static HashMap<String, Method> methods = new HashMap<String, Method>(); @SuppressWarnings("unchecked") public static Method getMethod(Object target, String name, Class... parameterTypes) { String key = target.getClass().getSimpleName() + ":" + name + ":" + (parameterTypes == null ? 0 : parameterTypes.length); Method method = methods.get(key); if (method == null) { for (Class obj = target.getClass(); !obj.equals(Object.class); obj = obj.getSuperclass()) { try { method = obj.getDeclaredMethod(name, parameterTypes); method.setAccessible(true); methods.put(key, method); break; } catch (SecurityException e) { e.printStackTrace(); } catch (NoSuchMethodException e) { e.printStackTrace(); } } } return method; } }