Package com.streambase.liveview.client

Class MultiConnectionConfig

java.lang.Object

com.streambase.liveview.client.MultiConnectionConfig

public class MultiConnectionConfig
extends Object

Used to define a LiveViewMultiConnection.

Since:

2.0

Constructor Summary

Constructors

Constructor	Description
MultiConnectionConfig(List<ConnectionConfig> configs, MultiConnectionListener listener)	Use this constructor if you need to configure the servers differently.
MultiConnectionConfig(List<String> uris, String username, String password, MultiConnectionListener listener)	Use this constructor if the servers all use the same username and password (which can be null)

Method Summary

Modifier and Type	Method	Description
List<ConnectionConfig>	getConfigs()
ConnectionMode	getConnectionMode()
MultiConnectionListener	getListener()
int	getMaxRandomReconnectDelaySeconds()
long	getRetryIntervalMillis()
long	getTimeoutMillis()	The amount of time to consider a connection attempt failed.
void	setClientCapabilities(EnumSet<LiveViewClientCapability> capabilities)	Declare your client capabilities to be something less than the current default.
void	setConnectionMode(ConnectionMode connectionMode)
void	setListener(MultiConnectionListener listener)
void	setMaxRandomReconnectDelaySeconds(int maxRandomReconnectDelaySeconds)	When any connection with queries is lost, The LiveViewMultiConnection will wait a random amount of time from 0 to this value in seconds before trying to reconnect those queries to another server.
void	setRetryIntervalMillis(long retryIntervalMillis)	This is the wait between retry attempts.
void	setTimeoutMillis(long timeoutMillis)	The amount of time to consider a connection attempt failed.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

MultiConnectionConfig

public MultiConnectionConfig(List<ConnectionConfig> configs,
 MultiConnectionListener listener)

Use this constructor if you need to configure the servers differently. The primary use for this is if you have different username/password for the different servers, or you have any other specific settings you want to make per server.

Parameters:

configs - the List of ConnectionConfigs.

listener - if you want to be notified of connection events. May be null.

MultiConnectionConfig

public MultiConnectionConfig(List<String> uris,
 String username,
 String password,
 MultiConnectionListener listener)
                      throws LiveViewException

Use this constructor if the servers all use the same username and password (which can be null)

Parameters:

uris - the uris to the servers

username - the username on all the servers. May be null.

password - password on all the servers. May be null.

listener - if you want to be notified of connection events. May be null.

Throws:

LiveViewException

Method Details

getConfigs

public List<ConnectionConfig> getConfigs()

Returns:

the configs

getListener

public MultiConnectionListener getListener()

Returns:

the listener (or null) that was passed in to the constructor.

setListener

public void setListener(MultiConnectionListener listener)

Parameters:

listener - the listener to set

getConnectionMode

public ConnectionMode getConnectionMode()

Returns:

the connectionMode. The default, if you haven't set it, is ConnectionMode.SIMULTANEOUS_CONNECT_SINGLE_ACTIVE

setConnectionMode

public void setConnectionMode(ConnectionMode connectionMode)

Parameters:

connectionMode - the connectionMode to set

getTimeoutMillis

public long getTimeoutMillis()

The amount of time to consider a connection attempt failed. Note that non-existant servers do not cause a timeout, that state is detected almost immediately. This is relevant only to a server that has a web services layer running but is not responding. if negative, use the default, which comes from Java System property "liveview.heartbeat.wait.millis"

Returns:

the timeout duration in milliseconds.

setTimeoutMillis

public void setTimeoutMillis(long timeoutMillis)

The amount of time to consider a connection attempt failed. Note that non-existant servers do not cause a timeout, that state is detected immediately. This is relevant only to a server that has a web services layer running but is not responding. This is used both for preferred server initial connect, if firstServerPreferred is true, and for all connects if preConnectAlternates if false if negative, use the default, which comes from Java System property "liveview.heartbeat.wait.millis"

Parameters:

timeoutMillis - the timeout duration in milliseconds.

setClientCapabilities

public void setClientCapabilities(EnumSet<LiveViewClientCapability> capabilities)

Declare your client capabilities to be something less than the current default.

Parameters:

capabilities -

See Also:

• LiveViewClientCapability.CURRENT_LV_CLIENT_CAPABILITY

getRetryIntervalMillis

public long getRetryIntervalMillis()

Returns:

the retryIntervalMillis

setRetryIntervalMillis

public void setRetryIntervalMillis(long retryIntervalMillis)

This is the wait between retry attempts. Default is 1000 ms.

Parameters:

retryIntervalMillis - the retryIntervalMillis to set. 10 ms is the minimum accepted.

getMaxRandomReconnectDelaySeconds

public int getMaxRandomReconnectDelaySeconds()

Returns:

the maxRandomReconnectDelaySeconds

setMaxRandomReconnectDelaySeconds

public void setMaxRandomReconnectDelaySeconds(int maxRandomReconnectDelaySeconds)

When any connection with queries is lost, The LiveViewMultiConnection will wait a random amount of time from 0 to this value in seconds before trying to reconnect those queries to another server. The purpose is that when one server with many clients goes down, it will prevent the client from all trying to reconnect to one server all at the same time. Some clients will be delayed, rather than all clients plus the clients already connected to the secondary server being delayed.

Parameters:

maxRandomReconnectDelaySeconds - the maxRandomReconnectDelaySeconds to set