Classes

The following classes are available globally.

  • A Couchbase Lite database.

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    Declaration

    Swift

    public final class Database
  • ENTERPRISE EDITION ONLY.

    A message sent between message endpoint connections.

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    Declaration

    Swift

    public final class Message
  • ENTERPRISE EDITION ONLY.

    Message endpoint.

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    Declaration

    Swift

    public class MessageEndpoint : IEndpoint
  • The In class represents the IN clause object in a quantified operator (ANY/ANY AND EVERY/EVERY IN SATISFIES ). The IN clause is used for specifying an array object or an expression evaluated as an array object, each item of which will be evaluated against the satisfies expression.

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    Declaration

    Swift

    public final class ArrayExpressionIn
  • The Satisfies class represents the SATISFIES clause object in a quantified operator (ANY/ANY AND EVERY/EVERY IN SATISFIES ). The SATISFIES clause is used for specifying an expression that will be used to evaluate each item in the array.

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    Declaration

    Swift

    public final class ArrayExpressionSatisfies
  • ArrayObject provides readonly access to array data.

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    Declaration

    Swift

    public class ArrayObject : ArrayProtocol, Equatable, Hashable, Sequence
  • Blob contains arbitrary binary data, tagged with a MIME type. Blobs can be arbitrarily large, and their data is loaded only on demand (when the content or contentStream properties are accessed), not when the document is loaded. The document’s raw JSON form only contains the Blob’s metadata (type, length and a digest of the data) in a small object. The data itself is stored externally to the document, keyed by the digest.

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    Declaration

    Swift

    public final class Blob : Equatable, Hashable
  • Collation factory. CouchbaseLite provides two types of the Collation, ASCII and Unicode. Without specifying the COLLATE expression. Couchbase Lite will use the ASCII with case sensitive collation by default.

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    Declaration

    Swift

    public final class Collation
  • ConflictResolver provides access to the default conflict resolver used by the replicator

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    Declaration

    Swift

    public final class ConflictResolver
  • ENTERPRISE EDITION ONLY : UNCOMMITTED

    CoreMLPredictiveModel is a Core ML based implementation of the PredictiveModel protocol. Basically the CoreMLPredictiveModel used a Core ML model to return prediction results.

    CoreMLPredictiveModel automatically converts between Couchbase Lite data and Core ML data when calling into the MLModel object to return prediction results. All Core ML data types including Int64, Double, String, Dictionary, MultiArray, Image, and Sequence are supported.

    When the MLObject has a single input and the input type is Image, CoreMLPredictiveModel will use Vision framework via the VNCoreMLModel to process the input image and call into the MLModel object. The CoreMLPredictiveModel supports all VNObservation types including VNClassificationObservation, VNCoreMLFeatureValueObservation, and VNPixelBufferObservation as mentioned in https://developer.apple.com/documentation/vision/vncoremlrequest. However there is a compatibility limitation when the VNCoreMLModel returns VNCoreMLFeatureValueObservation or VNPixelBufferObservation results that the MLModel must return a single output, otherwise the observation outputs cannot be mapped to the MLModel outputs. When the VNCoreMLModel cannot be used to result the prediction result, CoreMLPredictiveModel will fall back to use the MLModel instead.

    When converting blob data to VNPixelBuffer for an input image, only ARGB pixel format is currently supported. However this limitation is applied only when the VNCoreMLModel cannot be used.

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    Declaration

    Swift

    @available(OSX 10.13, iOS 11.0, *)
    open class CoreMLPredictiveModel : PredictiveModel
  • A query data source factory. The current data source supported is the database.

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    Declaration

    Swift

    public final class DataSource
  • DocumentFragment provides access to a document object. DocumentFragment also provides subscript access by either key or index to the data values of the document which are wrapped by Fragment objects.

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    Declaration

    Swift

    public final class DocumentFragment : DictionaryFragment
  • Query expression factory.

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    Declaration

    Swift

    public final class Expression
  • File logger used for writing log messages to files. To enable the file logger, setup the log file configuration and specify the log level as desired.

    It is important to configure your LogFileConfiguration object appropriately before setting to a logger. Logger make a copy of the configuration settings you provide and use those settings to configure the logger. Once configured, the logger object ignores any changes you make to the LogFileConfiguration object.

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    Declaration

    Swift

    public class FileLogger
  • A From component representing a FROM clause for specifying the data source of the query.

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    Declaration

    Swift

    public final class From : Query, JoinRouter, WhereRouter, GroupByRouter, OrderByRouter, LimitRouter
  • Function factory.

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    Declaration

    Swift

    public final class Function
  • A GroupBy represents the GROUP BY clause to group the query result. The GROUP BY clause is normally used with aggregate functions (AVG, COUNT, MAX, MIN, SUM) to aggregate the group of the values.

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    Declaration

    Swift

    public final class GroupBy : Query, HavingRouter, OrderByRouter, LimitRouter
  • Having represents a HAVING clause of the query statement used for filtering the aggregated values from the the GROUP BY clause.

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    Declaration

    Swift

    public final class Having : Query, OrderByRouter, LimitRouter
  • A value index for regular queries.

    Declaration

    Swift

    public final class ValueIndex : Index, CBLIndexConvertible
  • Value Index Item.

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    Declaration

    Swift

    public final class ValueIndexItem
  • A full-text search index for full-text search query with the match operator.

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    Declaration

    Swift

    public final class FullTextIndex : Index, CBLIndexConvertible
  • Full-text search index item.

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    Declaration

    Swift

    public class FullTextIndexItem
  • IndexBuilder used for building database index objects.

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    Declaration

    Swift

    public class IndexBuilder
  • Join factory.

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    Declaration

    Swift

    public class Join
  • A Joins component represents a collection of the joins clauses of the query statement.

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    Declaration

    Swift

    public final class Joins : Query, WhereRouter, OrderByRouter, LimitRouter
  • A Limit component represents the LIMIT clause of the query statement.

    Declaration

    Swift

    public final class Limit : Query
  • Listener token returned when adding a change listener. The token is used for removing the added change listener.

    Declaration

    Swift

    public class ListenerToken
  • Log

    Log allows to configure console and file logger or to set a custom logger.

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    Declaration

    Swift

    public class Log
  • Meta is a factory class for creating the meta expressions that refer to the metadata properties of the document.

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    Declaration

    Swift

    public final class Meta
  • An OrderBy represents an ORDER BY clause of the query statement.

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    Declaration

    Swift

    public final class OrderBy : Query, LimitRouter
  • Ordering factory.

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    Declaration

    Swift

    public final class Ordering
  • Query parameters used for setting values to the query parameters defined in the query.

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    Declaration

    Swift

    public class Parameters
  • ENTERPRISE EDITION ONLY : UNCOMMITTED

    Predictive model manager class for registering and unregistering predictive models.

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    Declaration

    Swift

    public class Prediction
  • ENTERPRISE EDITION ONLY : UNCOMMITTED

    The predictive index used for querying with prediction function. The predictive index is different from the normal index in that the predictive index will cache the prediction result along with creating the value index of the prediction output properties.

    The PredictiveIndex can be created by using IndexBuilder’s predictiveIndex() function. If the prediction output properties are not specified, the predictive index will only cache the predictive result so that the predictive model will not be called again after indexing.

    Declaration

    Swift

    public final class PredictiveIndex : Index, CBLIndexConvertible
  • A database query. A Query instance can be constructed by calling one of the select class methods.

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    Declaration

    Swift

    public class Query
  • A factory class to create a Select instance.

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    Declaration

    Swift

    public final class QueryBuilder
  • A replicator for replicating document changes between a local database and a target database. The replicator can be bidirectional or either push or pull. The replicator can also be one-short or continuous. The replicator runs asynchronously, so observe the status property to be notified of progress.

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    Declaration

    Swift

    public final class Replicator
  • Result represents a single row in the query result. The projecting result value can be accessed either by using a zero based index or by a key corresponding to the SelectResult objects given when constructing the Query object.

    A key used for accessing the projecting result value could be one of the followings:

    • The alias name of the SelectResult object.
    • The last component of the keypath or property name of the property expression used when creating the SelectResult object.
    • The provision key in $1, $2, …$N format for the SelectResult that doesn’t have an alias name specified or is not a property expression such as an aggregate function expression (e.g. count(), avg(), min(), max(), sum() and etc). The number suffix after the ‘$’ character is a running number starting from one.
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    Declaration

    Swift

    public final class Result : ArrayProtocol, DictionaryProtocol, Sequence
  • ResultSet is a result returned from a query.

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    Declaration

    Swift

    public final class ResultSet : Sequence, IteratorProtocol
  • A Select component represents the returning properties in each query result row.

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    Declaration

    Swift

    public final class Select : Query, FromRouter
  • Where class represents the WHERE clause of the query statement.

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    Declaration

    Swift

    public final class Where : Query, GroupByRouter, OrderByRouter, LimitRouter