Here are the classes, structs, unions and interfaces with brief descriptions:

CPTDiffusionAddTopicResult	The result of adding a topic
CPTDiffusionBasicHTTPProxyAuthentication	Provider of responses to basic authentication challenges from HTTP proxies
CPTDiffusionBinary	An immutable binary value with support for binary deltas
CPTDiffusionBinaryDelta	An immutable delta describing the differences between two binary values
CPTDiffusionBinaryFetchResult	Encapsulates the results from a binary fetch operation issued to the server
CPTDiffusionBinaryFetchTopicResult	Encapsulates the result from a binary fetch operation for a single selected topic
C<PTDiffusionBinaryRequestDelegate>	Methods implemented by classes handling Binary messaging requests with a handler registered at the server
C<PTDiffusionBinaryRequestStreamDelegate>	Methods implemented by classes handling Binary messaging requests
C<PTDiffusionBinarySessionResponseStreamDelegate>	Methods implemented by classes handling Binary messaging responses from individual sessions
CPTDiffusionBinaryTimeSeriesEvent	An event in a time series whose value may be interpreted as Binary
C<PTDiffusionBinaryTimeSeriesEventValueStreamDelegate>	Methods implemented by classes handling streamed time series events with binary values
CPTDiffusionBinaryTimeSeriesQueryResult	Query result providing an array of binary time series events
CPTDiffusionBinaryUpdateStream	An update stream that provides the ability for updating topics with binary values
C<PTDiffusionBinaryValueStreamDelegate>	Methods implemented by classes handling streamed events for binary value topics
CPTDiffusionBranchMapping	A session tree branch mapping
CPTDiffusionBranchMappingTable	A session tree branch mapping table
CPTDiffusionBranchMappingTableBuilder	Builder for `PTDiffusionBranchMappingTable` instances
CPTDiffusionBytes	A value that is internally represented as binary data
C<PTDiffusionCancellable>	A cancellable handle to an asynchronous operation
CPTDiffusionCheckRemoteServerResult	Interface for the result of checking the state of a remote server
CPTDiffusionClientControlFeature	The Client Control feature provides the ability for a client session to control other client sessions
C<PTDiffusionClientQueueEventListener>	Listener for client message queue events from the server
CPTDiffusionClientQueuePolicy	Policy for managing a client message queue
CPTDiffusionCloseReason	Specifies the reason why a session has been closed
CPTDiffusionCreateRemoteServerResult	Interface for the result from the creation of a remote server
CPTDiffusionCredentials	Credentials contain the proof material to support an authentication request
C<PTDiffusionDataType>	Methods implemented by classes providing data type implementations
CPTDiffusionDataTypes	Diffusion data type implementations
CPTDiffusionDefaultSessionResponseStreamDelegate	Default delegate implementation which may be used as an abstract base for sub-protocol implementations
CPTDiffusionDefaultStreamDelegate	Default delegate implementation which may be used as an abstract base for sub-protocol implementations
CPTDiffusionDefaultSubscriberStreamDelegate	Default delegate implementation which may be used as an abstract base for sub-protocol implementations
CPTDiffusionDefaultTopicNotificationListener	Default delegate implementation which may be used as an abstract base for sub-protocol implementations
CPTDiffusionDefaultTopicTreeRegistrationDelegate	Default delegate implementation which may be used as an abstract base for sub-protocol implementations
CPTDiffusionEnumeration	Base class for objects offering a selection of predefined constant values
C<PTDiffusionErrorListener>	Methods implemented by classes wishing to listen to error notifications
CPTDiffusionFeature	A feature is a unit of functionality that is available to a client session
CPTDiffusionFetchRequest	A parameterised query that can be used to search the topic tree
CPTDiffusionFetchRequest(PTDiffusionBinary)	Extension adding support to Topics feature fetch requests allowing them to be constrained to only those topics with a data type compatible with Binary
CPTDiffusionFetchRequest(PTDiffusionJSON)	Extension adding support to Topics feature fetch requests allowing them to be constrained to only those topics with a data type compatible with JSON
CPTDiffusionFetchRequest(PTDiffusionPrimitive)	Extension adding support to Topics feature fetch requests allowing them to be constrained to only those topics with a data type compatible with primitive values
CPTDiffusionFetchRequest(PTDiffusionRecordV2)	Extension adding support to Topics feature fetch requests allowing them to be constrained to only those topics with a data type compatible with records
CPTDiffusionFetchRequest(PTDiffusionTimeSeriesEvent)	Extension adding support to Topics feature fetch requests allowing them to be constrained to only those topics with a data type compatible with time series events
CPTDiffusionFetchResult	Base class for results from fetch operations issued to the server
CPTDiffusionFetchTopicResult	Encapsulates the result from a fetch operation for a single selected topic
CPTDiffusionGetSessionPropertiesResult	Encapsulates the result of a querying the server for the session properties of a particular session ID or session filter
CPTDiffusionGlobalPermission	Permissions that protect globally scoped, access-controlled operations
C<PTDiffusionHTTPAuthentication>	The protocol implemented by classes providing authentication challenge handler implementations for HTTP connections
CPTDiffusionHTTPAuthenticationChallenge	An HTTP response from a server connection request, challenging the client to authenticate
C<PTDiffusionHTTPAuthenticationChallengeHandler>	The protocol implemented by classes providing an authentication challenge handler implementation for HTTP connections
CPTDiffusionHTTPAuthenticationChallengeStatus	An HTTP Status received as part of an authentication challenge
CPTDiffusionHTTPProxyConfiguration	Connection details for an HTTP proxy to be tunneled through in order to reach the Diffusion server
CPTDiffusionHTTPResponse
CPTDiffusionJSON	An immutable JSON value with support for both binary and JSON deltas
CPTDiffusionJSONDelta	An immutable structural delta describing the differences between two JSON values
CPTDiffusionJSONDeltaChangeMap	An immutable map describing the changes to a JSON value
CPTDiffusionJSONFetchResult	Encapsulates the results from a JSON fetch operation issued to the server
CPTDiffusionJSONFetchTopicResult	Encapsulates the result from a JSON fetch operation for a single selected topic
CPTDiffusionJSONPatchResult	Result of calls to the Partial Update feature
C<PTDiffusionJSONRequestDelegate>	Methods implemented by classes handling JSON messaging requests with a handler registered at the server
C<PTDiffusionJSONRequestStreamDelegate>	Methods implemented by classes handling JSON messaging requests
C<PTDiffusionJSONSessionResponseStreamDelegate>	Methods implemented by classes handling JSON messaging responses from individual sessions
CPTDiffusionJSONTimeSeriesEvent	An event in a time series whose value may be interpreted as JSON
C<PTDiffusionJSONTimeSeriesEventValueStreamDelegate>	Methods implemented by classes handling streamed time series events with JSON values
CPTDiffusionJSONTimeSeriesQueryResult	Query result providing an array of JSON time series events
CPTDiffusionJSONUpdateStream	An update stream that provides the ability for updating topics with JSON values
C<PTDiffusionJSONValueStreamDelegate>	Methods implemented by classes handling streamed events for JSON value topics
CPTDiffusionLogging	Logging provides access to debug information that can be enabled at runtime
CPTDiffusionLoggingDestinationConfiguration	Options allowing log output to be directed to a custom location
CPTDiffusionLoggingLevel	A level of information events useful for debugging
CPTDiffusionMessagingFeature	This feature provides a client session with request-response messaging capabilities that can be used to implement application services
CPTDiffusionMessagingFeature(PTDiffusionBinary)	Extension adding support to the Messaging feature for sending requests accepting a binary response
CPTDiffusionMessagingFeature(PTDiffusionJSON)	Extension adding support to the Messaging feature for sending requests accepting a JSON response
CPTDiffusionMessagingFeature(PTDiffusionPrimitive)	Extension adding support to the Messaging feature for sending requests accepting a primitive value in response
CPTDiffusionMessagingFeature(PTDiffusionRecordV2)	Extension adding support to the Messaging feature for sending requests accepting a record response
CPTDiffusionMetricCollector	The common base interface for metric collectors
CPTDiffusionMetricCollectorBuilder	The common base interface for metric collectors
CPTDiffusionMetricsFeature	This feature allows a client to configure metric collectors
C<PTDiffusionMissingTopicHandler>	Handler called when a client session subscribes or fetches using a topic selector that matches no topics
CPTDiffusionMissingTopicNotification	Notification that a session has made a request using a selector that does not match any topics
CPTDiffusionMutableRecordV2Model	A mutable data model based upon a schema
CPTDiffusionMutableSessionConfiguration	A mutable session configuration can be modified prior to being used to define behaviour and policies to use when connecting to Diffusion
CPTDiffusionNumberFetchResult	Encapsulates the results from a numeric fetch operation issued to the server
CPTDiffusionNumberFetchTopicResult	Encapsulates the result from a numeric fetch operation for a single selected topic
C<PTDiffusionNumberRequestDelegate>	Methods implemented by classes handling numeric messaging requests with a handler registered at the server
C<PTDiffusionNumberRequestStreamDelegate>	Methods implemented by classes handling Number messaging requests
C<PTDiffusionNumberSessionResponseStreamDelegate>	Methods implemented by classes handling numeric messaging responses from individual sessions
CPTDiffusionNumberTimeSeriesEvent	An event in a time series whose value may be interpreted as a number
C<PTDiffusionNumberTimeSeriesEventValueStreamDelegate>	Methods implemented by classes handling streamed time series events with numeric values
CPTDiffusionNumberTimeSeriesQueryResult	Query result providing an array of number time series events
CPTDiffusionNumberUpdateStream	An update stream that provides the ability for updating topics with numerical primitive values
C<PTDiffusionNumberValueStreamDelegate>	Methods implemented by classes handling streamed events for number value topics
CPTDiffusionPartialJSONUpdateConstraint	A constraint requiring the current value of a JSON topic to match the partially described value
CPTDiffusionPartialJSONUpdateConstraint(PTDiffusionBinary)	Extension adding support to partial JSON update constraints for requiring primitive values at locations referenced with a JSON pointer
CPTDiffusionPartialJSONUpdateConstraint(PTDiffusionPrimitive)	Extension adding support to partial JSON update constraints for requiring primitive values at locations referenced with a JSON pointer
CPTDiffusionPathPermission	Permissions protecting access-controlled operations that are evaluated for a specific topic path
CPTDiffusionPingDetails	Details returned in response to a ping to the server
CPTDiffusionPingsFeature	The Pings feature provides a client session with the ability to ping the server
CPTDiffusionPrimaryInitiatorRemoteServer	A Primary Initiator Remote Server
CPTDiffusionPrimitive	Support for creating value streams for primitive values including string and numeric types
CPTDiffusionRecordV2	An immutable record value with support for binary deltas
CPTDiffusionRecordV2Builder	Builds free format PTDiffusionRecordV2 values
CPTDiffusionRecordV2Delta	A description of the differences between two record values
CPTDiffusionRecordV2DeltaChange	Represents a single change between one record value and another
CPTDiffusionRecordV2DeltaChangeType	The type of change represented by a record delta
CPTDiffusionRecordV2FetchResult	Encapsulates the results from a record fetch operation issued to the server
CPTDiffusionRecordV2FetchTopicResult	Encapsulates the result from a record fetch operation for a single selected topic
CPTDiffusionRecordV2Model	A data model based upon a schema
C<PTDiffusionRecordV2RequestDelegate>	Methods implemented by classes handling record messaging requests with a handler registered at the server
C<PTDiffusionRecordV2RequestStreamDelegate>	Methods implemented by classes handling RecordV2 messaging requests
CPTDiffusionRecordV2Schema	A schema
CPTDiffusionRecordV2SchemaBuilder	Used to build an immutable PTDiffusionRecordV2Schema
CPTDiffusionRecordV2SchemaField	A field definition within a schema
CPTDiffusionRecordV2SchemaFieldType	Type of field defined within a schema
CPTDiffusionRecordV2SchemaNode	A node within a schema
CPTDiffusionRecordV2SchemaRecord	A record definition within a schema
C<PTDiffusionRecordV2SessionResponseStreamDelegate>	Methods implemented by classes handling record messaging responses from individual sessions
CPTDiffusionRecordV2TimeSeriesEvent	An event in a time series whose value may be interpreted as a record
C<PTDiffusionRecordV2TimeSeriesEventValueStreamDelegate>	Methods implemented by classes handling streamed time series events with record values
CPTDiffusionRecordV2TimeSeriesQueryResult	Query result providing an array of record time series events
CPTDiffusionRecordV2UpdateStream	An update stream that provides the ability for updating topics with record values
C<PTDiffusionRecordV2ValueStreamDelegate>	Methods implemented by classes handling streamed events for record value topics
CPTDiffusionRecoverableUpdateStream	Update stream with recoverability capabilies regarding transient server errors
CPTDiffusionRegistration	A reference to a registered handle
CPTDiffusionRemoteServer	Base Interface for a remote server
CPTDiffusionRemoteServerBuilder	A Remote Server builder
CPTDiffusionRemoteServerConnectionOption	Connection option key for a remote server
CPTDiffusionRemoteServerConnectionState	Represents the current connection state of the remote server
CPTDiffusionRemoteServersFeature	This feature allows a client session to manage remote servers
CPTDiffusionRequest	A request to be sent using messaging
CPTDiffusionRequestContext	A request context provides additional contextual information for received messaging requests
CPTDiffusionRequestHandler	Handler to receive request notifications
CPTDiffusionRequestStream	A request stream represents an asynchronous, variable length feed of messaging requests
CPTDiffusionResponder	Responder provided with requests, used to dispatch responses
CPTDiffusionResponder(PTDiffusionBinary)	Extension adding support for responding to requests using Binary values
CPTDiffusionResponder(PTDiffusionJSON)	Extension adding support for responding to requests using JSON values
CPTDiffusionResponder(PTDiffusionPrimitive)	Extension adding support for responding to requests using primitive values
CPTDiffusionResponder(PTDiffusionRecordV2)	Extension adding support for responding to requests using record values
CPTDiffusionResponse	A response to be sent using messaging
CPTDiffusionRetryStrategy	Defines a retry strategy
CPTDiffusionSecondaryAcceptorRemoteServer	Secondary remote server that accepts a connection from a primary server
CPTDiffusionSecondaryInitiatorRemoteServer	Secondary remote server that initiates a connection to a primary server
CPTDiffusionSecurityFeature	This feature provides a client session with the ability to change its associated principal as well as to query permissions assigned to it
CPTDiffusionSession	A client session to a server (or cluster of servers)
CPTDiffusionSessionConfiguration	A session configuration defines behavior and policies to use when connecting to Diffusion
CPTDiffusionSessionDelayedReconnectionStrategy	Delayed is a default reconnection strategy supplied with the client library
CPTDiffusionSessionId	A session ID is a unique session identifier, allocated by the server
CPTDiffusionSessionImmediateAbortReconnectionStrategy	Immediate abort is a default reconnection strategy supplied with the client library
CPTDiffusionSessionLock	A server-managed resource that can be used to coordinate exclusive access to shared resources across sessions
CPTDiffusionSessionLockAttempt	A handle to a session lock request
CPTDiffusionSessionLockScope	Scope specifying when a session lock should be releaed
CPTDiffusionSessionMetricCollector	The definition of a session metric collector
CPTDiffusionSessionMetricCollectorBuilder	A session metric collector builder
C<PTDiffusionSessionPropertiesDelegate>	Listener for Session properties events from the server
CPTDiffusionSessionPropertiesListenerRegistration	A reference to a handler registered for a particular set of session properties
C<PTDiffusionSessionPropertiesListenerRegistrationDelegate>	Common protocol for delegates that establish a server side control presence for the client session at a particular set of session properties
CPTDiffusionSessionReconnectionAttempt	A session reconnection attempt can either be started or aborted
C<PTDiffusionSessionReconnectionStrategy>	The session reconnection strategy protocol defines the behaviour for a session when recovering a failed connection
CPTDiffusionSessionResponseStream	A response stream represents an asynchronous, variable length feed of messaging responses from other sessions
C<PTDiffusionSessionResponseStreamDelegate>	Methods implemented by classes handling messaging responses from individual sessions
CPTDiffusionSessionState	Session state represents the condition a session has in respect of connectivity to a Diffusion server
CPTDiffusionSessionStateChange	A session state change represents a change in a session's state
C<PTDiffusionSessionStateChangeDelegate>	The optional delegate for a session which may be used to receive state notifications
CPTDiffusionSessionTreesFeature	This feature allows a client session to configure session trees
CPTDiffusionSetSessionPropertiesResult	Encapsulates the result of a querying the server for the session properties of a particular session ID or session filter
CPTDiffusionStream	A stream represents an asynchronous, variable length feed of updates from the Diffusion server
C<PTDiffusionStreamDelegate>	The stream delegate protocol defines the methods to be implemented by classes wishing to receive streaming updates
CPTDiffusionStringFetchResult	Encapsulates the results from a string fetch operation issued to the server
CPTDiffusionStringFetchTopicResult	Encapsulates the result from a string fetch operation for a single selected topic
C<PTDiffusionStringRequestDelegate>	Methods implemented by classes handling string messaging requests with a handler registered at the server
C<PTDiffusionStringRequestStreamDelegate>	Methods implemented by classes handling String messaging requests
C<PTDiffusionStringSessionResponseStreamDelegate>	Methods implemented by classes handling string messaging responses from individual sessions
CPTDiffusionStringTimeSeriesEvent	An event in a time series whose value may be interpreted as a string
C<PTDiffusionStringTimeSeriesEventValueStreamDelegate>	Methods implemented by classes handling streamed time series events with string values
CPTDiffusionStringTimeSeriesQueryResult	Query result providing an array of string time series events
CPTDiffusionStringUpdateStream	An update stream that provides the ability for updating topics with string primitive values
C<PTDiffusionStringValueStreamDelegate>	Methods implemented by classes handling streamed events for string value topics
C<PTDiffusionSubscriberStreamDelegate>	Methods implemented by classes handling streamed subscription events for value topics
CPTDiffusionSubscriptionControlFeature	The Subscription Control feature allows a client session to subscribe or unsubscribe other sessions to topics, on a single server or across a cluster
CPTDiffusionTimeSeriesEvent	An event in a time series
CPTDiffusionTimeSeriesEventMetadata	Metadata associated with a time series event
CPTDiffusionTimeSeriesFeature	This feature allows a session to update and query time series topics
CPTDiffusionTimeSeriesFeature(PTDiffusionBinary)	Extension adding support to the Time Series feature for appending and editing events using binary values
CPTDiffusionTimeSeriesFeature(PTDiffusionJSON)	Extension adding support to the Time Series feature for appending and editing events using JSON values
CPTDiffusionTimeSeriesFeature(PTDiffusionPrimitive)	Extension adding support to the Time Series feature for appending and editing events using primitive values
CPTDiffusionTimeSeriesFeature(PTDiffusionRecordV2)	Extension adding support to the Time Series feature for appending and editing events using record values
CPTDiffusionTimeSeriesFetchResult	Encapsulates the results from a time series fetch operation issued to the server
CPTDiffusionTimeSeriesFetchTopicResult	Encapsulates the result from a time series fetch operation for a single selected topic
CPTDiffusionTimeSeriesQueryResult	Query result providing an array of time series events
CPTDiffusionTimeSeriesQueryResultEventArrayStructure	Describes the structural properties of the array of events presented by a time series query result
CPTDiffusionTimeSeriesRangeQuery	Builder for queries that select a range of events from a time series
CPTDiffusionTopicControlFeature	The Topic Control feature provides a client session with the ability to manage topics
CPTDiffusionTopicCreationResult	Indicates whether the operation caused a topic to be created or if it already existed
CPTDiffusionTopicMetricCollector	The definition of a topic metric collector
CPTDiffusionTopicMetricCollectorBuilder	A topic metric collector builder
C<PTDiffusionTopicNotificationListener>	Methods implemented by classes handling streamed topic notifications
CPTDiffusionTopicNotificationRegistration	The registration state of the associated topic notification listener on the server
CPTDiffusionTopicNotificationsFeature	The Topic Notifications feature allows a client session to receive notifications about changes to selected topics
CPTDiffusionTopicNotificationType	The type of topic notification received
CPTDiffusionTopicRemovalResult	Reports the number of topics removed by a call to `removeTopicsWithTopicSelectorExpression`
CPTDiffusionTopicSelection	A topic selection that represents either a subscription (selection) or an unsubscription (deselection)
CPTDiffusionTopicSelector	A topic selector identifies one or more topics
CPTDiffusionTopicsFeature	Subscription to topics and fetching topic data
CPTDiffusionTopicSpecification	Topic specifications provide the information required to create a topic
CPTDiffusionTopicTreeRegistration	A reference to a handler registered for a particular topic path
C<PTDiffusionTopicTreeRegistrationDelegate>	Common protocol for delegates that establish a server side control presence for the client session at a particular branch of the topic tree
CPTDiffusionTopicUpdateFeature	The Topic Update feature provides a client session with the ability to update topics
CPTDiffusionTopicUpdateFeature(PTDiffusionBinary)	Extension adding support to the Topic Update feature for updating topics with binary values
CPTDiffusionTopicUpdateFeature(PTDiffusionJSON)	Extension adding support to the Topic Update feature for updating topics with JSON values
CPTDiffusionTopicUpdateFeature(PTDiffusionPrimitive)	Extension adding support to the Topic Update feature for updating topics with primitive values
CPTDiffusionTopicUpdateFeature(PTDiffusionRecordV2)	Extension adding support to the Topic Update feature for updating topics with record values
CPTDiffusionTopicView	Description of a topic view that has been created
CPTDiffusionTopicViewsFeature	This feature allows a client session to manage topic views
CPTDiffusionUpdateConstraint	A constraint to be applied to an update operation or the creation of an update stream
CPTDiffusionUpdateConstraintOperator	An operator used in a constraint comparison
CPTDiffusionUpdateStream	An update stream that provides a base functionality for updating a specific topic
CPTDiffusionUpdateStreamBuilder	An update stream builder
CPTDiffusionValueStream	A value stream represents an asynchronous, variable length feed of subscription and value updates from the Diffusion server
CPTDiffusionVersion	A version represents a released build of the client library