@Override
  public Predicate toPredicate(Predicate left, Predicate right) {
    //todo: refactor to remove down casts
    return new OrPredicate(left, right);
  }
Constructor.

@param ctxPrecedence  precedence value for the current context
ambari-server/src/main/java/org/apache/ambari/server/api/predicate/operators/OrOperator.java