LoaderParameterKey.java

/**
 * ================================================
 * LibLoader : a free Java resource loading library
 * ================================================
 *
 * Project Info:  http://reporting.pentaho.org/libloader/
 *
 * (C) Copyright 2006, by Pentaho Corporation and Contributors.
 *
 * This library is free software; you can redistribute it and/or modify it under the terms
 * of the GNU Lesser General Public License as published by the Free Software Foundation;
 * either version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License along with this
 * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
 * in the United States and other countries.]
 *
 *
 * ------------
 * $Id: LoaderParameterKey.java,v 1.3 2007/04/01 13:43:17 taqua Exp $
 * ------------
 * (C) Copyright 2006, by Pentaho Corporation.
 */
package org.jfree.resourceloader;

import java.io.Serializable;

/**
 * Creation-Date: 16.05.2006, 15:24:21
 *
 * @author Thomas Morgner
 */
00040 public final class LoaderParameterKey implements Serializable
{
  private String name;
  private transient int hashKey;

  public LoaderParameterKey(final String name)
  {
    if (name == null)
    {
      throw new NullPointerException();
    }
    this.name = name;
  }

  public boolean equals(final Object o)
  {
    if (this == o)
    {
      return true;
    }
    if (o == null || getClass() != o.getClass())
    {
      return false;
    }

    final LoaderParameterKey that = (LoaderParameterKey) o;

    if (!name.equals(that.name))
    {
      return false;
    }

    return true;
  }

  public int hashCode()
  {
    if (hashKey == 0)
    {
      hashKey = name.hashCode();
    }
    return hashKey;
  }
}