import com.sun.org.apache.xpath.internal.compiler.PsuedoNames; //导入依赖的package包/类
/**
 * Calculate the local name or psuedo name of the node that this pattern will test,
 * for hash table lookup optimization.
 *
 * @see com.sun.org.apache.xpath.internal.compiler.PsuedoNames
 */
public void calcTargetString()
{

  int whatToShow = getWhatToShow();

  switch (whatToShow)
  {
  case DTMFilter.SHOW_COMMENT :
    m_targetString = PsuedoNames.PSEUDONAME_COMMENT;
    break;
  case DTMFilter.SHOW_TEXT :
  case DTMFilter.SHOW_CDATA_SECTION :
  case (DTMFilter.SHOW_TEXT | DTMFilter.SHOW_CDATA_SECTION) :
    m_targetString = PsuedoNames.PSEUDONAME_TEXT;
    break;
  case DTMFilter.SHOW_ALL :
    m_targetString = PsuedoNames.PSEUDONAME_ANY;
    break;
  case DTMFilter.SHOW_DOCUMENT :
  case DTMFilter.SHOW_DOCUMENT | DTMFilter.SHOW_DOCUMENT_FRAGMENT :
    m_targetString = PsuedoNames.PSEUDONAME_ROOT;
    break;
  case DTMFilter.SHOW_ELEMENT :
    if (this.WILD == m_name)
      m_targetString = PsuedoNames.PSEUDONAME_ANY;
    else
      m_targetString = m_name;
    break;
  default :
    m_targetString = PsuedoNames.PSEUDONAME_ANY;
    break;
  }
}