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Java Simplified. Extensions and Useful Constructs for the Java Platform. Codeprimate Elements (a.k.a. cp-elements) is a Java library and micro-framework used to simplify the development of software applications written in Java. Elements packages several APIs into one library in order to address various application concerns and aspects of software design and development collectively and conveniently. Elements is a highly simple, yet robust and proven library built on solid OO principles, software design patterns and best practices to effectively solve common and reoccurring problems in software development.

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/*
 * Copyright 2016 Author or Authors.
 *
 * 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.cp.elements.lang;

/**
 * The {@link Visitor} interface define a contract for objects who's classes implement this interface in order to walk
 * an object graph for carrying out some operation of evalution of particular objects or types of objects.  The Visitor
 * interface is an expression of the Visitor design pattern separating algorithm from object structure.
 *
 * @author John J. Blum
 * @see java.lang.FunctionalInterface
 * @see org.cp.elements.lang.Visitable
 * @since 1.0.0
 */
@FunctionalInterface
public interface Visitor {

  /**
   * Visits the Visitable object in order to perform a function or evaluation of the target object.
   *
   * @param visitable the Visitable object visited by this Visitor.
   */
  void visit(Visitable visitable);

}