code: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements. See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership. The ASF licenses this file
   * to you 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.
   */
  /*
   * $Id$
   */
  package org.apache.xml.utils;
  
  /**
   * The default implementation of XMLStringFactory.
   * This implementation creates XMLStringDefault objects.
   */
  public class XMLStringFactoryDefault extends XMLStringFactory
  {
    // A constant representing the empty String
    private static final XMLStringDefault EMPTY_STR = new XMLStringDefault("");
    
    /**
     * Create a new XMLString from a Java string.
     *
     *
     * @param string Java String reference, which must be non-null.
     *
     * @return An XMLString object that wraps the String reference.
     */
    public XMLString newstr(String string)
    {
      return new XMLStringDefault(string);
    }
  
    /**
     * Create a XMLString from a FastStringBuffer.
     *
     *
     * @param fsb FastStringBuffer reference, which must be non-null.
     * @param start The start position in the array.
     * @param length The number of characters to read from the array.
     *
     * @return An XMLString object that wraps the FastStringBuffer reference.
     */
    public XMLString newstr(FastStringBuffer fsb, int start, int length)
    {
      return new XMLStringDefault(fsb.getString(start, length));
    }
  
    /**
     * Create a XMLString from a FastStringBuffer.
     *
     *
     * @param string FastStringBuffer reference, which must be non-null.
     * @param start The start position in the array.
     * @param length The number of characters to read from the array.
     *
     * @return An XMLString object that wraps the FastStringBuffer reference.
     */
    public XMLString newstr(char[] string, int start, int length)
    {
      return new XMLStringDefault(new String(string, start, length));
    }
                                     
    /**
     * Get a cheap representation of an empty string.
     * 
     * @return An non-null reference to an XMLString that represents "".
     */
    public XMLString emptystr()
    {
      return EMPTY_STR;
    }
  }
  