code: public void setPredicates(Expression[] predicates)
    {
  
      m_predicates = predicates;
      if(null != predicates)
      {
      	for(int i = 0; i < predicates.length; i++)
      	{
      		predicates[i].exprSetParent(this);
      	}
      }
  
      calcScore();
    }
docs: Set the predicates for this match pattern step.
  
  
  @param predicates An array of expressions that define predicates
  for this step.