characterprimitivetype.java

来自「RESIN 3.2 最新源码」· Java 代码 · 共 87 行

/*
 * Copyright (c) 1998-2008 Caucho Technology -- all rights reserved
 *
 * This file is part of Resin(R) Open Source
 *
 * Each copy or derived work must preserve the copyright notice and this
 * notice unmodified.
 *
 * Resin Open Source is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * Resin Open Source 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, or any warranty
 * of NON-INFRINGEMENT.  See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Resin Open Source; if not, write to the
 *
 *   Free Software Foundation, Inc.
 *   59 Temple Place, Suite 330
 *   Boston, MA 02111-1307  USA
 *
 * @author Scott Ferguson
 */

package com.caucho.config.type;

import com.caucho.config.*;
import com.caucho.util.*;

/**
 * Represents a char type.
 */
public final class CharacterPrimitiveType extends ConfigType
{
  private static final L10N L = new L10N(CharacterPrimitiveType.class);
  
  public static final CharacterPrimitiveType TYPE = new CharacterPrimitiveType();
  
  /**
   * The CharacterPrimitiveType is a singleton
   */
  private CharacterPrimitiveType()
  {
  }
  
  /**
   * Returns the Java type.
   */
  public Class getType()
  {
    return char.class;
  }
  
  /**
   * Converts the string to a value of the type.
   */
  public Object valueOf(String text)
  {
    if (text != null && text.length() > 0)
      return new Character(text.charAt(0));
    else
      return new Character((char) 0);

    // ioc/23h0
    //throw new ConfigException(L.l("A Character value must be a single character at '{0}'.",
    // text));
  }
  
  /**
   * Converts the value to a value of the type.
   */
  public Object valueOf(Object value)
  {
    if (value instanceof Character)
      return value;
    else if (value == null)
      return new Character((char) 0);
    else
      return valueOf(String.valueOf(value));
  }
}