# Cheatsheets

## AggregateOptions

Options used to configure aggregate operations.

Name | Type | Description
`@allowDiskUse` | `Boolean` | Set the flag if writing to temporary files is enabled.
`@batchSize` | `Number (int)` | Set the batch size for methods loading found data in batches.
`@maxTime` | `Number (long)` | Set the time limit in milliseconds for processing operations on a cursor.

## BulkOperation

Contains all data needed for one operation of a bulk write operation.

Name | Type | Description
`@document` | `Json object` | Sets the document, used by insert, replace, and update operations
`@filter` | `Json object` | Sets the filter document, used by replace, update, and delete operations
`@multi` | `Boolean` | Sets the multi flag, used by update and delete operations
`@type` | `BulkOperationType` | Sets the operation type
`@upsert` | `Boolean` | Sets the upsert flag, used by update and replace operations

## BulkWriteOptions

Options for configuring bulk write operations.

Name | Type | Description
`@ordered` | `Boolean` | Set the ordered option
`@writeOption` | `WriteOption` | Set the write option

## FindOptions

Options used to configure find operations.

Name | Type | Description
`@batchSize` | `Number (int)` | Set the batch size for methods loading found data in batches.
`@fields` | `Json object` | Set the fields
`@limit` | `Number (int)` | Set the limit
`@skip` | `Number (int)` | Set the skip
`@sort` | `Json object` | Set the sort document

## GridFsDownloadOptions

Options used to configure downloads from GridFS.

Name | Type | Description
`@revision` | `Number (Integer)` | -

## GridFsUploadOptions

Name | Type | Description
`@chunkSizeBytes` | `Number (Integer)` | -
`@metadata` | `Json object` | -

## IndexModel

Name | Type | Description
`@key` | `Json object` | Get the index key

## IndexOptions

Options used to configure index.

Name | Type | Description
`@background` | `Boolean` | Create the index in the background
`@bits` | `Number (Integer)` | Gets the number of precision of the stored geohash value of the location data in 2d indexes.
`@bucketSize` | `Number (Double)` | Gets the specified the number of units within which to group the location values for geoHaystack Indexes
`@defaultLanguage` | `String` | Gets the language for a text index. The language that determines the list of stop words and the rules for the stemmer and tokenizer.
`@languageOverride` | `String` | Gets the name of the field that contains the language string. For text indexes, the name of the field, in the collection's documents, that contains the override language for the document.
`@max` | `Number (Double)` | Gets the upper inclusive boundary for the longitude and latitude values for 2d indexes..
`@min` | `Number (Double)` | Gets the lower inclusive boundary for the longitude and latitude values for 2d indexes..
`@name` | `String` | Gets the name of the index.
`@partialFilterExpression` | `Json object` | Get the filter expression for the documents to be included in the index or null if not set
`@sparse` | `Boolean` | If true, the index only references documents with the specified field
`@sphereVersion` | `Number (Integer)` | Gets the 2dsphere index version number.
`@storageEngine` | `Json object` | Gets the storage engine options document for this index.
`@textVersion` | `Number (Integer)` | The text index version number.
`@unique` | `Boolean` | Gets if the index should be unique.
`@version` | `Number (Integer)` | Gets the index version number.
`@weights` | `Json object` | Gets the weighting object for use with a text index A document that represents field and weight pairs. The weight is an integer ranging from 1 to 99,999 and denotes the significance of the field relative to the other indexed fields in terms of the score.

## MongoClientBulkWriteResult

Result propagated from mongodb driver bulk write result.

Name | Type | Description
`@deletedCount` | `Number (long)` | Returns the number of deleted documents
`@insertedCount` | `Number (long)` | Returns the number of inserted documents
`@matchedCount` | `Number (long)` | Returns the number of matched documents
`@modifiedCount` | `Number (long)` | Returns the number of modified documents
`@upserts` | `Array of Json object` | An unmodifiable list of upsert data. Each entry has the index of the request that lead to the upsert, and the generated ID of the upsert.

## MongoClientDeleteResult

Result propagated from mongodb driver delete result.

Name | Type | Description
`@removedCount` | `Number (long)` | Get the number of removed documents

## MongoClientUpdateResult

Result propagated from mongodb driver update result.

Name | Type | Description
`@docMatched` | `Number (long)` | Get the number of documents that're matched
`@docModified` | `Number (long)` | Get the number of documents that're modified
`@docUpsertedId` | `Json object` | Get the document id that's upserted

## UpdateOptions

Options for configuring updates.

Name | Type | Description
`@arrayFilters` | `Json array` | Set the arrayFilters option
`@multi` | `Boolean` | Set whether multi is enabled
`@returningNewDocument` | `Boolean` | Set whether new document property is enabled. Valid only on findOneAnd* methods.
`@upsert` | `Boolean` | Set whether upsert is enabled
`@writeOption` | `WriteOption` | Set the write option