78 lines
2.4 KiB
Go
78 lines
2.4 KiB
Go
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// Copyright (C) MongoDB, Inc. 2017-present.
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//
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// Licensed under the Apache License, Version 2.0 (the "License"); you may
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// not use this file except in compliance with the License. You may obtain
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// a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
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package options
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import (
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"go.mongodb.org/mongo-driver/bson/bsoncodec"
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"go.mongodb.org/mongo-driver/mongo/readconcern"
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"go.mongodb.org/mongo-driver/mongo/readpref"
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"go.mongodb.org/mongo-driver/mongo/writeconcern"
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)
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// CollectionOptions represent all possible options to configure a Collection.
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type CollectionOptions struct {
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ReadConcern *readconcern.ReadConcern // The read concern for operations in the collection.
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WriteConcern *writeconcern.WriteConcern // The write concern for operations in the collection.
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ReadPreference *readpref.ReadPref // The read preference for operations in the collection.
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Registry *bsoncodec.Registry // The registry to be used to construct BSON encoders and decoders for the collection.
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}
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// Collection creates a new CollectionOptions instance
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func Collection() *CollectionOptions {
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return &CollectionOptions{}
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}
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// SetReadConcern sets the read concern for the collection.
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func (c *CollectionOptions) SetReadConcern(rc *readconcern.ReadConcern) *CollectionOptions {
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c.ReadConcern = rc
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return c
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}
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// SetWriteConcern sets the write concern for the collection.
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func (c *CollectionOptions) SetWriteConcern(wc *writeconcern.WriteConcern) *CollectionOptions {
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c.WriteConcern = wc
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return c
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}
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// SetReadPreference sets the read preference for the collection.
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func (c *CollectionOptions) SetReadPreference(rp *readpref.ReadPref) *CollectionOptions {
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c.ReadPreference = rp
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return c
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}
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// SetRegistry sets the bsoncodec Registry for the collection.
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func (c *CollectionOptions) SetRegistry(r *bsoncodec.Registry) *CollectionOptions {
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c.Registry = r
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return c
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}
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// MergeCollectionOptions combines the *CollectionOptions arguments into a single *CollectionOptions in a last one wins
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// fashion.
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func MergeCollectionOptions(opts ...*CollectionOptions) *CollectionOptions {
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c := Collection()
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for _, opt := range opts {
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if opt == nil {
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continue
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}
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if opt.ReadConcern != nil {
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c.ReadConcern = opt.ReadConcern
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}
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if opt.WriteConcern != nil {
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c.WriteConcern = opt.WriteConcern
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}
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if opt.ReadPreference != nil {
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c.ReadPreference = opt.ReadPreference
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}
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if opt.Registry != nil {
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c.Registry = opt.Registry
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}
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}
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return c
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}
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