/**
    * Logback: the reliable, generic, fast and flexible logging framework.
    * Copyright (C) 1999-2011, QOS.ch. All rights reserved.
    *
    * This program and the accompanying materials are dual-licensed under
    * either the terms of the Eclipse Public License v1.0 as published by
    * the Eclipse Foundation
    *
    *   or (per the licensee's choosing)
   *
   * under the terms of the GNU Lesser General Public License version 2.1
   * as published by the Free Software Foundation.
   */
  package ch.qos.logback.core.joran.spi;
  
  /**
   * A 2-tuple (a double) consisting of a Class and a String. The Class references
   * the hosting class of a component and the String represents the property name
   * under which a nested component is referenced the host.
   * 
   * This class is used by {@link DefaultNestedComponentRegistry}.
   * 
   * @author Ceki Gulcu
   * 
   */
  public class HostClassAndPropertyDouble {
  
    final Class hostClass;
    final String propertyName;
  
    public HostClassAndPropertyDouble(Class hostClass, String propertyName) {
      this.hostClass = hostClass;
      this.propertyName = propertyName;
    }
  
    public Class getHostClass() {
      return hostClass;
    }
  
    public String getPropertyName() {
      return propertyName;
    }
  
    @Override
    public int hashCode() {
      final int prime = 31;
      int result = 1;
      result = prime * result + ((hostClass == null) ? 0 : hostClass.hashCode());
      result = prime * result
          + ((propertyName == null) ? 0 : propertyName.hashCode());
      return result;
    }
  
    @Override
    public boolean equals(Object obj) {
      if (this == obj)
        return true;
      if (obj == null)
        return false;
      if (getClass() != obj.getClass())
        return false;
      final HostClassAndPropertyDouble other = (HostClassAndPropertyDouble) obj;
      if (hostClass == null) {
        if (other.hostClass != null)
          return false;
      } else if (!hostClass.equals(other.hostClass))
        return false;
      if (propertyName == null) {
        if (other.propertyName != null)
          return false;
      } else if (!propertyName.equals(other.propertyName))
        return false;
      return true;
    }
  
  }