Visitor.java

/*
 * Copyright © 2014 Cask Data, Inc.
 *
 * 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 co.cask.cdap.internal.lang;

import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.lang.reflect.Type;

/**
 * Visitor for visiting class members.
 */
public interface Visitor {

  /**
   * Visits a field in the given type. The field might be declared in one of the parent class of the type.
   */
  void visit(Object instance, Type inspectType, Type declareType, Field field) throws Exception;

  /**
   * Visits a method in the given type. The method might be declared in one of the parent class of the type.
   */
  void visit(Object instance, Type inspectType, Type declareType, Method method) throws Exception;
}