Java Reflection Method Parameter getMethod(Class c, String methodName, Class... parameterTypes)

Description

get Method

License

Apache License

Declaration

public static Method getMethod(Class<?> c, String methodName, Class<?>... parameterTypes) 

Method Source Code

//package com.java2s;
//License from project: Apache License 

import java.lang.reflect.Method;

public class Main {
    public static Method getMethod(Class<?> c, String methodName, Class<?>... parameterTypes) {
        try {//from   w w  w  . ja va2  s .co m
            try {
                return c.getDeclaredMethod(methodName, parameterTypes);
            } catch (NoSuchMethodException ex) {
                Class<?> superclass = c.getSuperclass();
                if (superclass != null) {
                    return getMethod(superclass, methodName, parameterTypes);
                }

                return null;
            }
        } catch (RuntimeException ex) {
            throw ex;
        } catch (Exception ex) {
            // throw newstate ImplementationError(ex);
            throw new RuntimeException("");
        }
    }

    /**
     * Returns the declared method in the specified class or any of its super
     * classes.
     * 
     * @param c
     * @param methodName
     * @param types
     * @return
     * @throws NoSuchMethodException
     */
    public static Method getDeclaredMethod(Class<?> c, String methodName, Class<?>[] types)
            throws NoSuchMethodException {
        Method m = null;
        while (m == null && c != null) {
            try {
                m = c.getDeclaredMethod(methodName, types);
            } catch (SecurityException e) {
                throw new RuntimeException(e);
            } catch (NoSuchMethodException e) {
                // nop
            }
            c = c.getSuperclass();
        }
        if (m == null) {
            throw new NoSuchMethodException();
        }
        return m;
    }
}

Related

1. getMethod(Class declaringClass, String name, Class... parameterTypes)
2. getMethod(Class klass, String methodName, Class[] parameterTypes)
3. getMethod(Class target, String methodName, Class[] parameterTypes)
4. getMethod(Class type, String methodName, Class... parameterTypes)
5. getMethod(Class type, String name, Class[] parameterTypes)
6. getMethod(Class clazz, String functionName, Class[] parameterTypes)
7. getMethod(Class clazz, String method, Class... parameterTypes)
8. getMethod(Class clazz, String methodName, Class... parameterTypes)
9. getMethod(Class clazz, String methodName, Class... parameterTypes)