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    The MongoDB\Driver\ServerDescription class

    (mongodb >=1.13.0)

    简介

    The MongoDB\Driver\ServerDescription class is a value object that represents a server to which the driver is connected. Instances of this class are returned by MongoDB\Driver\Server::getServerDescription() and MongoDB\Driver\Monitoring\ServerChangedEvent methods.

    类摘要

    final class MongoDB\Driver\ServerDescription {
    /* 常量 */
    const string TYPE_UNKNOWN = "Unknown";
    const string TYPE_STANDALONE = "Standalone";
    const string TYPE_MONGOS = "Mongos";
    const string TYPE_POSSIBLE_PRIMARY = "PossiblePrimary";
    const string TYPE_RS_PRIMARY = "RSPrimary";
    const string TYPE_RS_SECONDARY = "RSSecondary";
    const string TYPE_RS_ARBITER = "RSArbiter";
    const string TYPE_RS_OTHER = "RSOther";
    const string TYPE_RS_GHOST = "RSGhost";
    const string TYPE_LOAD_BALANCER = "LoadBalancer";
    /* 方法 */
    final public getHelloResponse(): array
    final public getHost(): string
    final public getLastUpdateTime(): int
    final public getPort(): int
    final public getRoundTripTime(): ?int
    final public getType(): string
    }

    预定义常量

    MongoDB\Driver\ServerDescription::TYPE_UNKNOWN

    Unknown server type, returned by MongoDB\Driver\ServerDescription::getType().

    MongoDB\Driver\ServerDescription::TYPE_STANDALONE

    Standalone server type, returned by MongoDB\Driver\ServerDescription::getType().

    MongoDB\Driver\ServerDescription::TYPE_MONGOS

    Mongos server type, returned by MongoDB\Driver\ServerDescription::getType().

    MongoDB\Driver\ServerDescription::TYPE_POSSIBLE_PRIMARY

    Replica set possible primary server type, returned by MongoDB\Driver\ServerDescription::getType().

    A server may be identified as a possible primary if it has not yet been checked but another memory of the replica set thinks it is the primary.

    MongoDB\Driver\ServerDescription::TYPE_RS_PRIMARY

    Replica set primary server type, returned by MongoDB\Driver\ServerDescription::getType().

    MongoDB\Driver\ServerDescription::TYPE_RS_SECONDARY

    Replica set secondary server type, returned by MongoDB\Driver\ServerDescription::getType().

    MongoDB\Driver\ServerDescription::TYPE_RS_ARBITER

    Replica set arbiter server type, returned by MongoDB\Driver\ServerDescription::getType().

    MongoDB\Driver\ServerDescription::TYPE_RS_OTHER

    Replica set other server type, returned by MongoDB\Driver\ServerDescription::getType().

    Such servers may be hidden, starting up, or recovering. They cannot be queried, but their hosts lists are useful for discovering the current replica set configuration.

    MongoDB\Driver\ServerDescription::TYPE_RS_GHOST

    Replica set ghost server type, returned by MongoDB\Driver\ServerDescription::getType().

    Servers may be identified as such in at least three situations: briefly during server startup; in an uninitialized replica set; or when the server is shunned (i.e. removed from the replica set config). They cannot be queried, nor can their host list be used to discover the current replica set configuration; however, the client may monitor this server in hope that it transitions to a more useful state.

    MongoDB\Driver\ServerDescription::TYPE_LOAD_BALANCER

    Load balancer server type, returned by MongoDB\Driver\ServerDescription::getType().

    目录

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