/* Generated By:JJTree: Do not edit this line. OccurrenceIndicator.java */

package org.apache.xpath.parser;

import java.util.Vector;
import javax.xml.transform.TransformerException;
import org.apache.xpath.Expression;
import org.apache.xpath.ExpressionOwner;
import org.apache.xpath.XPathContext;
import org.apache.xpath.XPathVisitor;
import org.apache.xpath.objects.XObject;
import org.apache.xpath.operations.Add;
import org.apache.xpath.types.InstanceofExpr;

public class OccurrenceIndicator extends NonExecutableExpression
{
  int m_occuranceType;

  /**
   * Constructor for OccurrenceIndicator.
   * @param parser
   * @param value
   */
  public OccurrenceIndicator(XPath parser, String value)
  {
    super(parser, value);
  }

  /**
   * Constructor for OccurrenceIndicator.
   * @param parser
   */
  public OccurrenceIndicator(XPath parser)
  {
    super(parser);
  }
  
  /**
   * @see org.apache.xpath.parser.Node#jjtAddChild(Node, int)
   */
  public void jjtAddChild(Node n, int i)
  {
    if(n instanceof Add) // Hack... there should be a PlusOccuranceIndicator token!..
      m_occuranceType = InstanceofExpr.ONE_OR_MORE;
    else
    {
      // Assume NEE
      char c = ((NonExecutableExpression)n).m_value.charAt(0);
      if('*' == c)
        m_occuranceType = InstanceofExpr.ZERO_OR_MORE;
      else if('?' == c)
        m_occuranceType = InstanceofExpr.ZERO_OR_ONE;
      else
        this.flagProblem("The occurance indicator value is unknown! Value: "+c);
    }
  }

  /**
   * Returns the occuranceType.
   * @return int
   */
  public int getOccuranceType()
  {
    return m_occuranceType;
  }

  /**
   * Sets the occuranceType.
   * @param occuranceType The occuranceType to set
   */
  public void setOccuranceType(int occuranceType)
  {
    m_occuranceType = occuranceType;
  }
  
  

  /**
   * @see org.apache.xpath.parser.Node#jjtSetParent(Node)
   */
  public void jjtSetParent(Node n)
  {
    if(n instanceof SequenceType)
      ((SequenceType)n).setOccurrenceIndicator(m_occuranceType);
    super.jjtSetParent(n);
  }

}