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'rapiddweller Common' is an open source Java library forked from Databene Commons by Volker Bergmann. It provides extensions to the Java core library by utility classes, abstract concepts and concrete implementations.

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/*
 * Copyright (C) 2004-2015 Volker Bergmann ([email protected]).
 * All rights reserved.
 *
 * 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.rapiddweller.common.visitor;

import com.rapiddweller.common.Visitor;

import java.util.Objects;

/**
 * Element implementation that serves as proxy for another Element.
 * Created: 04.02.2007 08:17:20
 *
 * @param  The type of the wrapped element
 * @author Volker Bergmann
 */
public abstract class WrapperElement extends AbstractElement {

  /**
   * The Wrapped object.
   */
  protected E wrappedObject;

  /**
   * Instantiates a new Wrapper element.
   *
   * @param wrappedObject the wrapped object
   */
  protected WrapperElement(E wrappedObject) {
    this.wrappedObject = wrappedObject;
  }

  /**
   * Gets wrapped object.
   *
   * @return the wrapped object
   */
  public E getWrappedObject() {
    return wrappedObject;
  }

  @Override
  protected void acceptImpl(Visitor visitor) {
    visitor.visit(wrappedObject);
  }

  @SuppressWarnings("rawtypes")
  @Override
  public boolean equals(Object o) {
    if (this == o) {
      return true;
    }
    if (o == null || getClass() != o.getClass()) {
      return false;
    }
    final WrapperElement that = (WrapperElement) o;
    return Objects.equals(wrappedObject, that.wrappedObject);
  }

  @Override
  public int hashCode() {
    return (wrappedObject != null ? wrappedObject.hashCode() : 0);
  }

  @Override
  public String toString() {
    return wrappedObject.toString();
  }
}




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