methodconstructor.java

Java/J2EE框架Jdon-Framework系统的Sample

/**
 * Copyright 2005 Jdon.com
 * 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 com.jdon.bussinessproxy.method;

import java.lang.reflect.Method;
import com.jdon.util.Debug;

public class MethodConstructor {

  private final static String module = MethodConstructor.class.getName();

  public static Method createMethod(String className, String methodName,
                             Class[] paramTypes) throws Exception{
    Method m = null;
    try {
      Class ownerClass = Class.forName(className);
      m = ownerClass.getMethod(methodName, paramTypes);
    } catch (NoSuchMethodException nsme) {
      String errS = " NoSuchMethod：" + methodName +
                     " in className：" + className;
      Debug.logError(errS, module);
      throw new Exception(errS);
    } catch (Exception ex) {
      Debug.logError(" createMethod error：" + ex, module);
      throw new Exception(ex);
    }
    return m;
  }

  public static Method createMethod(Object ownerClass, String methodName,
                             Class[] paramTypes) throws Exception{
    Method m = null;
    try {
      m = ownerClass.getClass().getMethod(methodName, paramTypes);
    } catch (NoSuchMethodException nsme) {
      String errS = " NoSuchMethod：" + methodName +
                     " in className：" + ownerClass.getClass().getName();
      Debug.logError(errS, module);
      throw new Exception(errS);
    } catch (Exception ex) {
      Debug.logError(" createMethod error：" + ex, module);
      throw new Exception(ex);
    }
    return m;
  }


}