public void setExpression(Expression exp)
  {
  	if(null != m_mainExp)
    	exp.exprSetParent(m_mainExp.exprGetParent()); // a bit bogus
    m_mainExp = exp;
  }
public void setExpression ( Expression exp ) { if ( null != m_mainExp ) exp . exprSetParent ( m_mainExp . exprGetParent ( ) ) ; m_mainExp = exp ; }
Set the raw expression object for this object.


@param exp the raw Expression object, which should not normally be null.