public void addViewTokenRewriteStream(String viewFullyQualifiedName,
      TokenRewriteStream tokenRewriteStream) {
    viewsTokenRewriteStreams.put(viewFullyQualifiedName, tokenRewriteStream);
  }
@return the token rewrite stream being used to parse the current top-level
        SQL statement, or null if it isn't available (e.g. for parser
        tests)
ql/src/java/org/apache/hadoop/hive/ql/Context.java