Enum QueryScanConsistency

All Implemented Interfaces:
Serializable, Comparable<QueryScanConsistency>, java.lang.constant.Constable

public enum QueryScanConsistency extends Enum<QueryScanConsistency>
The possible values for scan consistency in a N1QL request.
  • Enum Constant Details


      public static final QueryScanConsistency NOT_BOUNDED
      The indexer will return whatever state it has to the query engine at the time of query.

      This is the default (for single-statement requests). No timestamp vector is used in the index scan. This is also the fastest mode, because we avoid the cost of obtaining the vector, and we also avoid any wait for the index to catch up to the vector.


      public static final QueryScanConsistency REQUEST_PLUS
      The indexer will wait until all mutations have been processed at the time of request before returning to the query engine.

      This implements strong consistency per request. Before processing the request, a current vector is obtained. The vector is used as a lower bound for the statements in the request. If there are DML statements in the request, RYOW ("read your own write") is also applied within the request.

  • Method Details

    • values

      public static QueryScanConsistency[] values()
      Returns an array containing the constants of this enum type, in the order they are declared.
      an array containing the constants of this enum type, in the order they are declared
    • valueOf

      public static QueryScanConsistency valueOf(String name)
      Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
      name - the name of the enum constant to be returned.
      the enum constant with the specified name
      IllegalArgumentException - if this enum type has no constant with the specified name
      NullPointerException - if the argument is null