Documentation
¶
Index ¶
Constants ¶
This section is empty.
Variables ¶
var ErrInconsistent = errors.New("a write concern cannot have both w=0 and j=true")
ErrInconsistent indicates that an inconsistent write concern was specified.
var ErrNegativeW = errors.New("write concern `w` field cannot be a negative number")
ErrNegativeW indicates that a negative integer `w` field was specified.
var ErrNegativeWTimeout = errors.New("write concern `wtimeout` field cannot be negative")
ErrNegativeWTimeout indicates that a negative WTimeout was specified.
Functions ¶
func AckWrite ¶
func AckWrite(wc *WriteConcern) bool
AckWrite returns true if a write concern represents an acknowledged write
func AcknowledgedElement ¶
AcknowledgedElement returns true if a BSON element for a write concern represents an acknowledged write concern. The element's value must be a document representing a write concern.
Types ¶
type Option ¶
type Option func(concern *WriteConcern)
Option is an option to provide when creating a ReadConcern.
func W ¶
W requests acknowledgement that write operations propagate to the specified number of mongod instances.
func WMajority ¶
func WMajority() Option
WMajority requests acknowledgement that write operations propagate to the majority of mongod instances.
type WriteConcern ¶
type WriteConcern struct {
// contains filtered or unexported fields
}
WriteConcern describes the level of acknowledgement requested from MongoDB for write operations to a standalone mongod or to replica sets or to sharded clusters.
func (*WriteConcern) Acknowledged ¶
func (wc *WriteConcern) Acknowledged() bool
Acknowledged indicates whether or not a write with the given write concern will be acknowledged.
func (*WriteConcern) IsValid ¶
func (wc *WriteConcern) IsValid() bool
IsValid checks whether the write concern is invalid.
func (*WriteConcern) MarshalBSONElement ¶
func (wc *WriteConcern) MarshalBSONElement() (*bson.Element, error)
MarshalBSONElement marshals the write concern into a *bson.Element.
Source Files