module Mongo::WriteConcern
Base
module for all write concern specific behavior.
@since 2.0.0
Constants
- DEFAULT
The default write concern is to acknowledge on a single server.
@since 2.0.0
- FSYNC
The file sync write concern.
@since 2.0.0 @deprecated
- GET_LAST_ERROR
The GLE command name.
@since 2.0.0 @deprecated
- J
The journal write concern.
@since 2.0.0 @deprecated
- W
The number of servers write concern.
@since 2.0.0 @deprecated
- WTIMEOUT
The wtimeout write concern.
@since 2.0.0 @deprecated
Public Instance Methods
Create a write concern object for the provided options.
If options are nil, returns nil.
@example Get a write concern.
Mongo::WriteConcern.get(:w => 1)
@param [ Hash ] options The options to instantiate with.
@option options :w [ Integer, String ] The number of servers or the
custom mode to acknowledge.
@option options :j [ true, false ] Whether to acknowledge a write to
the journal.
@option options :fsync [ true, false ] Should the write be synced to
disc.
@option options :wtimeout [ Integer ] The number of milliseconds to
wait for acknowledgement before raising an error.
@return [ nil | Unacknowledged
| Acknowledged
] The appropriate concern.
@raise [ Error::InvalidWriteConcern
] If the options are invalid.
@since 2.0.0
# File lib/mongo/write_concern.rb, line 85 def get(options) return options if options.is_a?(Base) if options if (options[:w] || options['w']) == 0 Unacknowledged.new(options) else Acknowledged.new(options) end end end