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.xalan.templates;
  
  import org.apache.xml.utils.FastStringBuffer;
  import org.apache.xpath.XPathContext;
  
  /**
   * Simple string part of a complex AVT.
   * @xsl.usage internal
   */
  public class AVTPartSimple extends AVTPart
  {
      static final long serialVersionUID = -3744957690598727913L;
  
    /**
     * Simple string value;
     * @serial
     */
    private String m_val;
  
    /**
     * Construct a simple AVT part.
     * @param val A pure string section of an AVT.
     */
    public AVTPartSimple(String val)
    {
      m_val = val;
    }
  
    /**
     * Get the AVT part as the original string.
     *
     * @return the AVT part as the original string.
     */
    public String getSimpleString()
    {
      return m_val;
    }
    
    /**
     * This function is used to fixup variables from QNames to stack frame 
     * indexes at stylesheet build time.
     * @param vars List of QNames that correspond to variables.  This list 
     * should be searched backwards for the first qualified name that 
     * corresponds to the variable reference qname.  The position of the 
     * QName in the vector from the start of the vector will be its position 
     * in the stack frame (but variables above the globalsTop value will need 
     * to be offset to the current stack frame).
     */
    public void fixupVariables(java.util.Vector vars, int globalsSize)
    {
      // no-op
    }
  
  
    /**
     * Write the value into the buffer.
     *
     * @param xctxt An XPathContext object, providing infomation specific
     * to this invocation and this thread. Maintains SAX state, variables, 
     * error handler and  so on, so the transformation/XPath object itself
     * can be simultaneously invoked from multiple threads.
     * @param buf Buffer to write into.
     * @param context The current source tree context.
     * @param nsNode The current namespace context (stylesheet tree context).
     */
    public void evaluate(XPathContext xctxt, FastStringBuffer buf,
                         int context,
                         org.apache.xml.utils.PrefixResolver nsNode)
    {
      buf.append(m_val);
    }
    /**
     * @see XSLTVisitable#callVisitors(XSLTVisitor)
     */
    public void callVisitors(XSLTVisitor visitor)
    {
    	// Don't do anything for the subpart for right now.
    }
  
  }
  