How to use

getParameterNames

method

in

net.gdface.utils.ParameterNames

  /**
   * {@link #getParameterNames(String, Class[])}不显式抛出异常版本
   * @param name
   * @param parameterTypes
   * @return
   */
  public final String[] getParameterNamesUnchecked(String name, Class<?>[] parameterTypes)  {
    try {
      return getParameterNames(name, parameterTypes);
    } catch (NoSuchMethodException e) {
      throw new RuntimeException(e);
    }
  }
}

/**
 * 获取构造函数或方法的参数名<br>
 * {@code name}为{@code null}时,获取构造函数的参数名
 * @param name 方法名
 * @param parameterTypes 构造函数或方法的参数类型
 * @return
 * @throws NoSuchMethodException
 * @see #getParameterNames(String, Class)
 */
public final String[] getParameterNames(String name, Class<?>[] parameterTypes) throws NoSuchMethodException {
  if(null == clazz){
    return null;
  }
  try {
    Member member = null == name ? clazz.getConstructor(parameterTypes) : clazz.getMethod(name, parameterTypes);
    return getParameterNames(member);
  } catch (SecurityException e) {
    throw new IllegalArgumentException(e);
  }
}
/**

/**
 * 获取构造函数或方法的参数名
 * @param member 构造函数或方法对象
 * @return
 * @see #getParameterNames(ChainedParamReader, Member)
 */
public final String[] getParameterNames(Member member) {
  if(null == clazz){
    return null;
  }
  Assert.notNull(member, "member");
  Class<?> declaringClass = member.getDeclaringClass();
  ChainedParamReader reader;
  if (null == (reader = readers.get(declaringClass))) {
    throw new IllegalArgumentException(String.format("%s is not member of %s", member.toString(),
        declaringClass.getName()));
  }
  return getParameterNames(reader, member);
}
 

private static final Method getMethod(java.lang.reflect.Method[] methods, String signature) {
  Assert.notEmpty(signature, "signature");
  for (java.lang.reflect.Method m : methods) {
    if (Method.getSignature(m).equals(signature)){
      ParameterNames pt = new ParameterNames(m.getDeclaringClass());
      try {
        return new Method(m,pt.getParameterNames(m.getName(), m.getParameterTypes()));
      } catch (NoSuchMethodException e) {
        throw new RuntimeException(e);
      }
    }                
  }
  return null;
}
public final Method getMethod(Class<?> clazz, String signature) {