This class implements all the necessary operations for connecting to a cluster of one or more MigratoryData servers, subscribing to subjects, getting real-time messages for the subscribed subjects, and publishing real-time messages. More...

Public Member Functions
	MigratoryDataClient ()
	Create a MigratoryDataClient object.

void	SetLogListener (Object logListener, MigratoryDataLogType logType)
	Define a log listener object and configure the logging level. More...

void	SetListener (MigratoryDataListener listener)
	Attach a MigratoryDataListener for handling real-time messages and status notifications. More...

void	SetServers (string[] servers)
	Specify a cluster of one or more MigratoryData servers to which the client will connect to. More...

void	Subscribe (List< string > subjects)
	Subscribe to one or more subjects. More...

void	SubscribeWithConflation (List< string > subjects, int conflationTimeMillis)
	Subscribe to one or more subjects with conflation. More...

void	SubscribeWithHistory (List< string > subjects, int numberOfHistoricalMessages)
	Subscribe to one or more subjects after getting historical messages for those subjects. More...

void	Unsubscribe (List< string > subjects)
	Unsubscribe from one or more subjects. More...

void	SetEncryption (bool b)
	Configure whether to use SSL/TLS encryption when connecting to a MigratoryData server. More...

void	SetEntitlementToken (string token)
	Assign an authorization token to the client. More...

List< string >	GetSubjects ()
	Return the list of subscribed subjects. More...

void	SetServersDownBeforeNotify (int n)
	Define the number of failed attempts to connect to one or more MigratoryData servers before triggering a status notification MigratoryDataClient.NOTIFY_SERVER_DOWN. More...

void	Disconnect ()
	Disconnect from the connected MigratoryData server and dispose the resources used by the connection. More...

void	Publish (MigratoryDataMessage message)
	Publish a message. More...

void	NotifyAfterReconnectRetries (int retries)
	Define the number of failed attempts to connect to one or more MigratoryData servers before triggering a status notification MigratoryDataClient.NOTIFY_SERVER_DOWN. More...

void	SetQuickReconnectMaxRetries (int retries)
	Define the maximum number of retries for the Quick Reconnect failover phase. More...

void	SetQuickReconnectInitialDelay (int seconds)
	Define the number of seconds to wait before attempting to reconnect to the cluster after a connection failure is detected. More...

void	SetReconnectPolicy (string policy)
	Define the reconnect policy to be used after the Quick Reconnect phase. More...

void	setReconnectTimeInterval (int seconds)
	Define the time interval used for the reconnect schedule after the Quick Reconnect phase. More...

void	setReconnectMaxDelay (int seconds)
	Define the maximum reconnect delay for the MigratoryDataClient.TRUNCATED_EXPONENTIAL_BACKOFF policy. More...

Static Public Attributes
static readonly string	NOTIFY_SERVER_UP = "NOTIFY_SERVER_UP"
	Indicate that the client successfully connected to a MigratoryData server. More...

static readonly string	NOTIFY_SERVER_DOWN = "NOTIFY_SERVER_DOWN"
	Indicate that the client failed to connect to a MigratoryData server. More...

static readonly string	NOTIFY_DATA_SYNC = "NOTIFY_DATA_SYNC"
	After a failover reconnection, the client resynchronized a subscribed subject with the latest message available for that subject, as well as with all messages published during the failover for that subject. More...

static readonly string	NOTIFY_DATA_RESYNC = "NOTIFY_DATA_RESYNC"
	After a failover reconnection, the client resynchronized a subscribed subject with the latest message available for that subject, but not with the potential messages published during the failover, therefore behaving as a new client. More...

static readonly string	NOTIFY_SUBSCRIBE_ALLOW = "NOTIFY_SUBSCRIBE_ALLOW"
	Indicate that the client was authorized to subscribe to a subject. More...

static readonly string	NOTIFY_SUBSCRIBE_DENY = "NOTIFY_SUBSCRIBE_DENY"
	Indicate that the client was not authorized to subscribe to a subject. More...

static readonly string	NOTIFY_SUBSCRIBE_TIMEOUT = "NOTIFY_SUBSCRIBE_TIMEOUT"

static readonly string	NOTIFY_PUBLISH_OK = "NOTIFY_PUBLISH_OK"
	Indicate that the client successfully published a message. More...

static readonly string	NOTIFY_PUBLISH_FAILED = "NOTIFY_PUBLISH_FAILED"
	Indicate that the client was unable to publish a message. More...

static readonly string	NOTIFY_PUBLISH_DENIED = "NOTIFY_PUBLISH_DENIED"
	Indicate that the client was unable to publish a message because it is not allowed by the entitlement system. More...

static readonly string	NOTIFY_PUBLISH_NO_SUBSCRIBER = "NOTIFY_PUBLISH_NO_SUBSCRIBER"
	Indicate that the client was unable to publish a message because there is no client subscribed to the subject of the message. More...

static readonly string	CONSTANT_WINDOW_BACKOFF = "CONSTANT_WINDOW_BACKOFF"
	A constant used to define the reconnect policy. More...

static readonly string	TRUNCATED_EXPONENTIAL_BACKOFF = "TRUNCATED_EXPONENTIAL_BACKOFF"
	A constant used to define the reconnect policy. More...

Detailed Description

This class implements all the necessary operations for connecting to a cluster of one or more MigratoryData servers, subscribing to subjects, getting real-time messages for the subscribed subjects, and publishing real-time messages.

Member Function Documentation

◆ SetLogListener()

void MigratoryDataClient.SetLogListener	(	Object	logListener,
		MigratoryDataLogType	logType
	)

Define a log listener object and configure the logging level.

The log listener object should belong to a class which implements the MigratoryDataLogListener interface.

It is advisable to configure this API call first if you want to log as much as possible.

Parameters

logListener	An instance of a class which implements the MigratoryDataLogListener interface
logType	The logging verbosity (MigratoryDataLogType.ERROR, MigratoryDataLogType.INFO, MigratoryDataLogType.DEBUG or MigratoryDataLogType.TRACE ); by default there is no logging.

◆ SetListener()

void MigratoryDataClient.SetListener ( MigratoryDataListener listener )

Attach a MigratoryDataListener for handling real-time messages and status notifications.

Parameters

listener An instance of a class which implements the MigratoryDataListener interface

◆ SetServers()

void MigratoryDataClient.SetServers ( string [] servers )

Specify a cluster of one or more MigratoryData servers to which the client will connect to.

If you specify two or more MigratoryData servers, then all these MigratoryData servers should provide the same level of data redundancy, by making available for subscription the same set of subjects. This is required for achieving (weighted) load balancing, failover, and guaranteed message delivery of the system. In this way, the MigratoryData servers of the servers list form a cluster.

For example, to connect to a cluster formed of two MigratoryData servers installed at the addresses p1.example.com and p2.example.com, and configured to accept connections on the standard HTTP port 80, the following code can be used:

   client.SetServers(new string[] {"p1.example.com:80", "p2.example.com:80"});

To achieve load-balancing, the API connects the client to a MigratoryData server chosen randomly from the servers list. In this way, the load is balanced among all the members of the cluster.

Moreover, the API supports weighted load-balancing. This feature is especially useful if the MigratoryData servers in the cluster are installed on machines with different capacities. You can assign to each member of the cluster a weight ranging from 0 to 100. This weight assignment is a hint provided to the API to select with a higher probability a MigratoryData server with a higher weight either initially when the client connects to the cluster or later during a failover reconnection.

Supposing the address p1.example.com corresponds to a machine that is twice more powerful than the machine having the address p2.example.com, then you can assign to p1.example.com a weight 100 and to p2.example.com a weight 50 by prefixing each address with the assigned weight as follows:

client.SetServers(new string[] {"100 p1.example.com:80", "50 p2.example.com:80"});

The API assigns a default weight 100 to the addresses not prefixed with a specific weight.

To achieve failover, if the connection between the client and a MigratoryData server is broken, then the API will automatically detect the failure and will select another MigratoryData server from the servers list. If the client fails to connect to the new selected server, a status notification MigratoryDataClient.NOTIFY_SERVER_DOWN will be triggered (unless you modify the number of failed attempts with MigratoryDataClient.SetServersDownBeforeNotify()), and a new MigratoryData server in the cluster will be selected again and again until the client will be able to connect to one of the MigratoryData servers in the cluster. When successfully connected, the API will trigger a status notification MigratoryDataClient.NOTIFY_SERVER_UP.

Furthermore, if certified message delivery is enabled, then the potential messages published during the failover period for a subscribed subject, will be automatically retrieved from the cache of the MigratoryData server to which the client reconnects to and a status notification MigratoryDataClient.NOTIFY_DATA_SYNC will be triggered for that subject.

If, for example, the failover period is abnormally long, and the client is not able to retrieve, after a failover reconnection, the messages published during the failover period for one of its subscribed subjects, then the API will retrieve only the most recent message for that subject and will trigger a MigratoryDataClient.NOTIFY_DATA_RESYNC status notification for that subject, the client behaving as a new client which connects to the cluster at the moment of the failover reconnection.

For a complete discussion concerning the load balancing, failover, and certified message delivery features see the MigratoryData Architecture Guide (PDF, HTML).

Parameters

servers An array of strings where each string represents the network address (IP address or DNS domain name and its corresponding port) of a MigratoryData server, optionally prefixed by a weight ranging from 0 to 100. If the weight prefix is not provided to an address, then the API will automatically assign to that address a default weight 100.

Exceptions

NullReferenceException	If the address of a MigratoryData server is null.
SocketException	If the connection to the address of a MigratoryData server could not be established.
FormatException	If the address of a MigratoryData server is not valid.

◆ Subscribe()

void MigratoryDataClient.Subscribe ( List< string > subjects )

Subscribe to one or more subjects.

Subscribe for real-time messages having as subjects the strings provided in the subjects parameter.

As an example, supposing the messages are market data updates having as subjects stock names. Then, to subscribe for the messages having as subjects /stocks/NYSE/IBM and /stocks/Nasdaq/MSFT the following code will be used:

    List<string> subjects = new List<string>();
    subjects.Add("/stocks/NYSE/IBM");
    subjects.Add("/stocks/Nasdaq/MSFT");
    client.Subscribe(subjects);

The subjects are strings having a particular particular syntax. See the Chapter "Concepts" in the MigratoryData Architecture Guide (PDF, HTML) to learn about the syntax of the subjects.

Parameters

subjects An array of strings representing subjects.

◆ SubscribeWithConflation()

void MigratoryDataClient.SubscribeWithConflation	(	List< string >	subjects,
		int	conflationTimeMillis
	)

Subscribe to one or more subjects with conflation.

Subscribe for real-time messages having as subjects the strings provided in the subjects parameter.

If the optional parameter conflationTimeMillis is used, then for each subject in the subjects list given in argument, its messages will be aggregated in the MigratoryData server and published every conflationTimeMillis milliseconds as aggregated data (containing only the latest value for that subject and its latest field values). The value of conflationTimeMillis should be a multiple of 100 milliseconds, otherwise the MigratoryData server will round it to the nearest value multiple of 100 milliseconds (e.g. 76 will be rounded to 0, 130 will be rounded to 100, 789 will be rounded to 700, ...). If the value of conflationTimeMillis is 0 (or is rounded to 0), then no conflation will apply, and data publication will be message-by-message with no message aggregation.

As an example, supposing the messages are market data updates having as subjects stock names. Then, to subscribe for the messages having as subjects /stocks/NYSE/IBM and /stocks/Nasdaq/MSFT using 1-second conflation the following code will be used:

    List<string> subjects = new List<string>();
    subjects.Add("/stocks/NYSE/IBM");
    subjects.Add("/stocks/Nasdaq/MSFT");
    client.SubscribeWithConflation(subjects, 1000);

The subjects are strings having a particular particular syntax. See the Chapter "Concepts" in the MigratoryData Architecture Guide (PDF, HTML) to learn about the syntax of the subjects.

Parameters

subjects	An array of strings representing subjects.
conflationTimeMillis	An optional argument defining the number of milliseconds used to aggregate ("conflate") the messages for each subject in the `subjects` list; default value is `0` meaning that no conflation will apply, and data publication will be message-by-message with no message aggregation.

◆ SubscribeWithHistory()

void MigratoryDataClient.SubscribeWithHistory	(	List< string >	subjects,
		int	numberOfHistoricalMessages
	)

Subscribe to one or more subjects after getting historical messages for those subjects.

Attempt to get the number of historical messages as defined by the argument numberOfHistoricalMessages, for each subject in the argument subjects, then subscribe for real-time messages having as subjects the strings provided in the subjects parameter.

When Guranteed Message Delivery is enabled, each MigratoryData server in the cluster maintains an in-memory cache with historical messages for each subject. The cache of each subject is available in all servers of the cluster. The maximum number of messages held in cache is defined by the parameter MaxCachedMessagesPerSubject of the MigratoryData server which defaults to 1,000 messages. The historical messages are continuously removed from the cache, but it is guaranteed that they are available in the cache at least the number of seconds defined by the parameter CacheExpireTime which defaults to 180 seconds.

If the value of numberOfHistoricalMessages is higher then the number of historical messages available in the cache, then the client will receive only the messages available in the cache. As a consequence, if you use a value higher than the value of the parameter MaxCachedMessagesPerSubject of the MigratoryData server (which defaults to 1000), then you will get the entire cache before subscribing for real-time messages for the subjects specified with the API call.

    List<string> subjects = new List<string>();
    subjects.Add("/stocks/NYSE/IBM");
    subjects.Add("/stocks/Nasdaq/MSFT");
    client.SubscribeWithHistory(subjects, 10);

The subjects are strings having a particular syntax. See the Chapter "Concepts" in the MigratoryData Architecture Guide (PDF, HTML) to learn about the syntax of the subjects.

Parameters

subjects	An array of strings representing subjects.
numberOfHistoricalMessages	The number of historical messages to be retrieved from the cache of the MigratoryData server. A value `0` means that no historical messages has to be retrieved and, in this case, this API method is equivalent to the API method MigratoryDataClient.Subscribe(). A value larger that the value of the parameter `MaxCachedMessagesPerSubject` means the entire cache is retrieved.

◆ Unsubscribe()

void MigratoryDataClient.Unsubscribe ( List< string > subjects )

Unsubscribe from one or more subjects.

Unsubscribe from the subscribed subjects provided in the subjects parameter.

Parameters

subjects An array of strings representing subjects.

◆ SetEncryption()

void MigratoryDataClient.SetEncryption ( bool b )

Configure whether to use SSL/TLS encryption when connecting to a MigratoryData server.

When using encryption you have to connect to the ports of the MigratoryData servers that are configured to listen for encrypted connections. See the parameter ListenEncrypted in the MigratoryData Configuration Guide (PDF, HTML).

Parameters

b	Determine whether the client connects to the MigratoryData server using an encrypted SSL/TLS connection

◆ SetEntitlementToken()

void MigratoryDataClient.SetEntitlementToken ( string token )

Assign an authorization token to the client.

To define which users of your application have access to which subjects, you will first have to set the parameter Entitlement on true in the configuration file of the MigratoryData server - see the parameter Entitlement in the MigratoryData Configuration Guide (PDF, HTML).

Then, you will have to use the entitlement-related part of the MigratoryData Extension API to allow or deny certain users to subscribe to certain subjects.

Parameters

token A string representing an authorization token.

◆ GetSubjects()

List<string> MigratoryDataClient.GetSubjects ( )

Return the list of subscribed subjects.

Returns: A list of strings representing the subscribed subjects.

◆ SetServersDownBeforeNotify()

void MigratoryDataClient.SetServersDownBeforeNotify ( int n )

Define the number of failed attempts to connect to one or more MigratoryData servers before triggering a status notification MigratoryDataClient.NOTIFY_SERVER_DOWN.

Deprecated:: use NotifyAfterReconnectRetries

Parameters

n	The number of the failed attempts to connect to one or more MigratoryData servers before triggering a status notification MigratoryDataClient.NOTIFY_SERVER_DOWN; default value is `1`.

◆ Disconnect()

void MigratoryDataClient.Disconnect ( )

Disconnect from the connected MigratoryData server and dispose the resources used by the connection.

This method should be called when the connection is no longer necessary.

◆ Publish()

void MigratoryDataClient.Publish ( MigratoryDataMessage message )

Publish a message.

If you attach a closure to the message, you will receive a status notification about this message publication via MigratoryDataListener.OnStatus().

Parameters

message A MigratoryDataMessage message

◆ NotifyAfterReconnectRetries()

void MigratoryDataClient.NotifyAfterReconnectRetries ( int retries )

Define the number of failed attempts to connect to one or more MigratoryData servers before triggering a status notification MigratoryDataClient.NOTIFY_SERVER_DOWN.

Parameters

retries The number of the failed attempts to connect to one or more MigratoryData servers before triggering a status notification MigratoryDataClient.NOTIFY_SERVER_DOWN; default value is 1.

◆ SetQuickReconnectMaxRetries()

void MigratoryDataClient.SetQuickReconnectMaxRetries ( int retries )

Define the maximum number of retries for the Quick Reconnect failover phase.

Parameters

retries The maximum number of quick reconnect retries; default value is 3.

◆ SetQuickReconnectInitialDelay()

void MigratoryDataClient.SetQuickReconnectInitialDelay ( int seconds )

Define the number of seconds to wait before attempting to reconnect to the cluster after a connection failure is detected.

Connection Failure Detection

Connection failure is detected immediately for almost all users. For a few users which are subject to temporary, atypical network conditions, connection failure is detected after 30-40 seconds.

Reconnection Phases and Policies

When a connection failure is detected, the API will attempt to reconnect to the servers of the MigratoryData cluster as follows: First, it will attempt to reconnect up to a number of times as defined by MigratoryDataClient.SetQuickReconnectMaxRetries() using small delays between retries (Quick Reconnection Phase). If the connection cannot be established after the Quick Reconnection Phase, then the API will attempt to reconnect less frequently according to the policy defined by MigratoryDataClient.SetReconnectPolicy().

The delays between retries are computed according to the following algorithm where the values of the variables involved are defined by the API methods having substantially the same names:

   Quick Reconnect Phase (retries <= quickReconnectMaxRetries)
   -----------------------------------------------------------

      (retries starts with 1 and increment by 1 at each quick reconnect)

      reconnectDelay = quickReconnectInitialDelay * retries - random(0, quickReconnectInitialDelay)

   After Quick Reconnect Phase (retries > quickReconnectMaxRetries)
   ----------------------------------------------------------------

      (reset retries to start with 1 and increment by 1 at each reconnect)

      If reconnectPolicy is CONSTANT_WINDOW_BACKOFF, then

         reconnectDelay = reconnectTimeInterval

      else if reconnectPolicy is TRUNCATED_EXPONENTIAL_BACKOFF, then

         reconnectDelay = min(reconnectTimeInterval * (2 ^ retries) - random(0, reconnectTimeInterval * retries), reconnectMaxDelay)

For a few users which are subject to temporary, atypical network conditions, if reconnectDelay computed with the algorithm above is less than 10 seconds, then it is rounded to 10 seconds.

Parameters

seconds The number of seconds to wait before attempting to reconnect to the cluster; default value is 5 seconds.

◆ SetReconnectPolicy()

void MigratoryDataClient.SetReconnectPolicy ( string policy )

Define the reconnect policy to be used after the Quick Reconnect phase.

See MigratoryDataClient.SetQuickReconnectInitialDelay() to learn about the Quick Reconnect phase and the reconnect schedule for the policy defined by this method.

Parameters

policy The reconnect policy to be used after the Quick Reconnect phase. The possible values are MigratoryDataClient.CONSTANT_WINDOW_BACKOFF and MigratoryDataClient.TRUNCATED_EXPONENTIAL_BACKOFF; the default value is MigratoryDataClient.TRUNCATED_EXPONENTIAL_BACKOFF.

◆ setReconnectTimeInterval()

void MigratoryDataClient.setReconnectTimeInterval ( int seconds )

Define the time interval used for the reconnect schedule after the Quick Reconnect phase.

See MigratoryDataClient.SetQuickReconnectInitialDelay() to learn about the Quick Reconnect phase and how the value defined by this API method is used for the reconnect schedule.

Parameters

seconds A time interval expressed in seconds used for reconnect schedule; default is 20 seconds.

◆ setReconnectMaxDelay()

void MigratoryDataClient.setReconnectMaxDelay ( int seconds )

Define the maximum reconnect delay for the MigratoryDataClient.TRUNCATED_EXPONENTIAL_BACKOFF policy.

See MigratoryDataClient.SetQuickReconnectInitialDelay() to learn how the value defined by this API method is used.

Parameters

seconds The maximum reconnect delay when the policy MigratoryDataClient.TRUNCATED_EXPONENTIAL_BACKOFF is used; default value is 360 seconds.

Member Data Documentation

◆ NOTIFY_SERVER_UP

readonly string MigratoryDataClient.NOTIFY_SERVER_UP = "NOTIFY_SERVER_UP"

static

Indicate that the client successfully connected to a MigratoryData server.

This constant indicates that the client successfully connected to one of the MigratoryData servers defined with the API method MigratoryDataClient.SetServers().

◆ NOTIFY_SERVER_DOWN

readonly string MigratoryDataClient.NOTIFY_SERVER_DOWN = "NOTIFY_SERVER_DOWN"

static

Indicate that the client failed to connect to a MigratoryData server.

This constant indicates that the client failed to connect to one of the MigratoryData servers defined with the API method MigratoryDataClient.SetServers().

◆ NOTIFY_DATA_SYNC

readonly string MigratoryDataClient.NOTIFY_DATA_SYNC = "NOTIFY_DATA_SYNC"

static

After a failover reconnection, the client resynchronized a subscribed subject with the latest message available for that subject, as well as with all messages published during the failover for that subject.

This constant indicates that the client successfully synchronized the subject provided in the detail information of the status notification. Also, the potential messages published for that subject during the failover period have been successfully retrieved at the moment of the reconnection.

◆ NOTIFY_DATA_RESYNC

readonly string MigratoryDataClient.NOTIFY_DATA_RESYNC = "NOTIFY_DATA_RESYNC"

static

After a failover reconnection, the client resynchronized a subscribed subject with the latest message available for that subject, but not with the potential messages published during the failover, therefore behaving as a new client.

This constant indicates that the client successfully synchronized the subject provided in the detail information of the status notification. However, the client was unable to get the messages published during the failover. Therefore, it behaves like a new client which connects to the MigratoryData server at the moment of the failover reconnection.

◆ NOTIFY_SUBSCRIBE_ALLOW

readonly string MigratoryDataClient.NOTIFY_SUBSCRIBE_ALLOW = "NOTIFY_SUBSCRIBE_ALLOW"

static

Indicate that the client was authorized to subscribe to a subject.

This constant indicates that the client identified with the token defined with the API method MigratoryDataClient.SetEntitlementToken() is allowed to subscribe to the subject provided in the detail information of the status notification.

◆ NOTIFY_SUBSCRIBE_DENY

readonly string MigratoryDataClient.NOTIFY_SUBSCRIBE_DENY = "NOTIFY_SUBSCRIBE_DENY"

static

Indicate that the client was not authorized to subscribe to a subject.

This constant indicates that the client identified with the token defined with the API method MigratoryDataClient.SetEntitlementToken() is not allowed to subscribe to the subject provided in the detail information of the status notification.

◆ NOTIFY_PUBLISH_OK

readonly string MigratoryDataClient.NOTIFY_PUBLISH_OK = "NOTIFY_PUBLISH_OK"

static

Indicate that the client successfully published a message.

This constant is used to indicate that the publication of the message, having the closure provided in the detail information of the status notification, has succeeded.

◆ NOTIFY_PUBLISH_FAILED

readonly string MigratoryDataClient.NOTIFY_PUBLISH_FAILED = "NOTIFY_PUBLISH_FAILED"

static

Indicate that the client was unable to publish a message.

This constant is used to indicate that the publication of the message, having the closure provided in the detail information of the status notification, has failed.

◆ NOTIFY_PUBLISH_DENIED

readonly string MigratoryDataClient.NOTIFY_PUBLISH_DENIED = "NOTIFY_PUBLISH_DENIED"

static

Indicate that the client was unable to publish a message because it is not allowed by the entitlement system.

This constant is used to indicate that the publication of the message, having the closure provided in the detail information of the status notification, has failed. The publication failed because the client identified with the token defined with the API method MigratoryDataClient.SetEntitlementToken() is not allowed to publish on the subject of the message.

◆ NOTIFY_PUBLISH_NO_SUBSCRIBER

readonly string MigratoryDataClient.NOTIFY_PUBLISH_NO_SUBSCRIBER = "NOTIFY_PUBLISH_NO_SUBSCRIBER"

static

Indicate that the client was unable to publish a message because there is no client subscribed to the subject of the message.

This constant is used to indicate that the publication of the message, having the closure provided in the detail information of the status notification, has failed. The publication failed because there is no client then subscribed to the subject of the message.

Deprecated:: no more is use.

◆ CONSTANT_WINDOW_BACKOFF

readonly string MigratoryDataClient.CONSTANT_WINDOW_BACKOFF = "CONSTANT_WINDOW_BACKOFF"

static

A constant used to define the reconnect policy.

See MigratoryDataClient.SetQuickReconnectInitialDelay() for more details about this policy.

◆ TRUNCATED_EXPONENTIAL_BACKOFF

readonly string MigratoryDataClient.TRUNCATED_EXPONENTIAL_BACKOFF = "TRUNCATED_EXPONENTIAL_BACKOFF"

static

A constant used to define the reconnect policy.

See MigratoryDataClient.SetQuickReconnectInitialDelay() for more details about this policy.

Public Member Functions

Static Public Attributes

Detailed Description

Member Function Documentation

◆ SetLogListener()

◆ SetListener()

◆ SetServers()

◆ Subscribe()

◆ SubscribeWithConflation()

◆ SubscribeWithHistory()

◆ Unsubscribe()

◆ SetEncryption()

◆ SetEntitlementToken()

◆ GetSubjects()

◆ SetServersDownBeforeNotify()

◆ Disconnect()

◆ Publish()

◆ NotifyAfterReconnectRetries()

◆ SetQuickReconnectMaxRetries()

◆ SetQuickReconnectInitialDelay()

Connection Failure Detection

Reconnection Phases and Policies

◆ SetReconnectPolicy()

◆ setReconnectTimeInterval()

◆ setReconnectMaxDelay()

Member Data Documentation

◆ NOTIFY_SERVER_UP

◆ NOTIFY_SERVER_DOWN

◆ NOTIFY_DATA_SYNC

◆ NOTIFY_DATA_RESYNC

◆ NOTIFY_SUBSCRIBE_ALLOW

◆ NOTIFY_SUBSCRIBE_DENY

◆ NOTIFY_PUBLISH_OK

◆ NOTIFY_PUBLISH_FAILED

◆ NOTIFY_PUBLISH_DENIED

◆ NOTIFY_PUBLISH_NO_SUBSCRIBER

◆ CONSTANT_WINDOW_BACKOFF

◆ TRUNCATED_EXPONENTIAL_BACKOFF