/*
 * This program is free software; you can redistribute it and/or modify it under the
 * terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
 * Foundation. 
 *
 * You should have received a copy of the GNU Lesser General Public License along with this
 * program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
 * or from the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 
 *
 * This program 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. 
 *
 * Copyright (c) 2001 - 2013 Object Refinery Ltd, Hitachi Vantara and Contributors..  All rights reserved. 
 */

package org.pentaho.reporting.engine.classic.core.modules.parser.ext.factory.base;

/**
 * An object-description for a <code>Byte</code> object. 
 *
 * @author Thomas Morgner
 */
public class ByteObjectDescription extends AbstractObjectDescription {

  /**
   * Creates a new object description. 
   */
  public ByteObjectDescription() {
    super( Byte.class );
    setParameterDefinition( "value", String.class );
  }

  /**
   * Creates a new object (<code>Byte</code>) based on this description object. 
   *
   * @return The <code>Byte</code> object. 
   */
  public Object createObject() {
    final String o = (String) getParameter( "value" );
    return Byte.valueOf( o.trim() );
  }

  /**
   * Sets the parameters of this description object to match the supplied object. 
   *
   * @param o
   *          the object (should be an instance of <code>Byte</code>. 
   * @throws ObjectFactoryException
   *           if there is a problem while reading the properties of the given object. 
   */
  public void setParameterFromObject( final Object o ) throws ObjectFactoryException {
    if ( !(  o instanceof Byte ) ) {
      throw new ObjectFactoryException( "The given object is no java.lang. Byte." ); 
    }
    setParameter( "value", String.valueOf( o ) );
  }

  /**
   * Tests for equality. 
   *
   * @param o
   *          the object to test. 
   * @return A boolean. 
   */
  public boolean equals( final Object o ) {
    if ( this == o ) {
      return true;
    }
    if ( !(  o instanceof AbstractObjectDescription ) ) {
      return false;
    }

    final AbstractObjectDescription abstractObjectDescription = (AbstractObjectDescription) o;

    if ( Byte.TYPE.equals( abstractObjectDescription.getObjectClass() ) ) {
      return true;
    }
    if ( Byte.class.equals( abstractObjectDescription.getObjectClass() ) ) {
      return true;
    }
    return false;
  }

  /**
   * Returns a hash code for the object. 
   *
   * @return The hash code. 
   */
  public int hashCode() {
    return getObjectClass().hashCode();
  }

}
