org.exolab.castor.util.ReflectionUtil Maven / Gradle / Ivy

/*
 * Copyright 2007 Werner Guttmann
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
 * in compliance with the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License
 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 * or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 */
package org.exolab.castor.util;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

/**
 * Utility class to support reflection-based operations.
 *
 * @since 1.1.2
 */
public class ReflectionUtil {

  /**
   * Calls isEnum() method on target class vi areflection to find out whether the given type is a
   * Java 5 enumeration.
   * 
   * @param type The type to analyze.
   * @return True if the type given is a Java 5.0 enum.
   * @throws NoSuchMethodException If the method can not be found.
   * @throws IllegalAccessException If access to this method is illegal
   * @throws InvocationTargetException If the target method can not be invoked.
   */
  public static Boolean isEnumViaReflection(Class type)
      throws NoSuchMethodException, IllegalAccessException, InvocationTargetException {
    Method isEnumMethod = type.getClass().getMethod("isEnum", (Class[]) null);
    return (Boolean) isEnumMethod.invoke(type, (Object[]) null);
  }


}