GemStone::GemFire::Cache::PoolFactory Class Reference


Detailed Description

This interface provides for the configuration and creation of instances of Pool.

Public Member Functions

PoolFactoryAddLocator (String^ host, Int32 port)
PoolFactoryAddServer (String^ host, Int32 port)
PoolCreate (String^ name)
PoolFactoryReset ()
PoolFactorySetFreeConnectionTimeout (Int32 connectionTimeout)
PoolFactorySetIdleTimeout (Int32 idleTimeout)
PoolFactorySetLoadConditioningInterval (Int32 loadConditioningInterval)
PoolFactorySetMaxConnections (Int32 maxConnections)
PoolFactorySetMinConnections (Int32 minConnections)
PoolFactorySetMultiuserAuthentication (bool multiuserAuthentication)
PoolFactorySetPingInterval (Int32 pingInterval)
PoolFactorySetPRSingleHopEnabled (Boolean enabled)
PoolFactorySetReadTimeout (Int32 timeout)
PoolFactorySetRetryAttempts (Int32 retryAttempts)
PoolFactorySetServerGroup (String^ group)
PoolFactorySetSocketBufferSize (Int32 bufferSize)
PoolFactorySetStatisticInterval (Int32 statisticInterval)
PoolFactorySetSubscriptionAckInterval (Int32 ackInterval)
PoolFactorySetSubscriptionEnabled (Boolean enabled)
PoolFactorySetSubscriptionMessageTrackingTimeout (Int32 messageTrackingTimeout)
PoolFactorySetSubscriptionRedundancy (Int32 redundancy)
PoolFactorySetThreadLocalConnections (Boolean enabled)

Member Function Documentation

PoolFactory ^ GemStone::GemFire::Cache::PoolFactory::AddLocator ( String^   host,
Int32  port 
)

Add a locator, given its host and port, to this factory.

The locator must be a server locator and will be used to discover other running bridge servers and locators.

host the host name or ip address that the locator is listening on.

port the port that the locator is listening on

throws IllegalArgumentException if host is an unknown host or if port is outside the valid range of [1..65535] inclusive.

throws IllegalStateException if a locator has already been added to this factory.

PoolFactory ^ GemStone::GemFire::Cache::PoolFactory::AddServer ( String^   host,
Int32  port 
)

Add a server, given its host and port, to this factory.

The server must be a bridge server and this client will directly connect to without consulting a server locator.

host the host name or ip address that the server is listening on.

port the port that the server is listening on

throws IllegalArgumentException if host is an unknown host or if port is outside the valid range of [1..65535] inclusive.

throws IllegalStateException if a server has already been added to this factory.

Pool ^ GemStone::GemFire::Cache::PoolFactory::Create ( String^   name  ) 

Create a new Pool for connecting a client to a set of GemFire Cache Servers. using this factory's settings for attributes.

name the name of the pool, used when connecting regions to it

throws IllegalStateException if a pool with name already exists throws IllegalStateException if a locator or server has not been added.

PoolFactory ^ GemStone::GemFire::Cache::PoolFactory::Reset (  ) 

Resets the configuration of this factory to its defaults.

PoolFactory ^ GemStone::GemFire::Cache::PoolFactory::SetFreeConnectionTimeout ( Int32  connectionTimeout  ) 

Sets the free connection timeout for this pool.

If the pool has a max connections setting, operations will block if all of the connections are in use. The free connection timeout specifies how long those operations will block waiting for a free connection before receiving an AllConnectionsInUseException. If max connections is not set this setting has no effect. connectionTimeout the connection timeout in milliseconds

IllegalArgumentException if connectionTimeout is less than or equal to 0.

PoolFactory ^ GemStone::GemFire::Cache::PoolFactory::SetIdleTimeout ( Int32  idleTimeout  ) 

Set the amount of time a connection can be idle before expiring the connection.

If the pool size is greater than the minimum specified, connections which have been idle for longer than the idleTimeout will be closed.

idleTimeout The amount of time in milliseconds that an idle connection should live before expiring. -1 indicates that connections should never expire.

throws IllegalArgumentException if idleTimout is less than 0.

PoolFactory ^ GemStone::GemFire::Cache::PoolFactory::SetLoadConditioningInterval ( Int32  loadConditioningInterval  ) 

Sets the load conditioning interval for this pool.

This interval controls how frequently the pool will check to see if a connection to a given server should be moved to a different server to improve the load balance.

loadConditioningInterval the connection lifetime in milliseconds A value of -1 disables load conditioning.

throws IllegalArgumentException if connectionLifetime is less than -1.

PoolFactory ^ GemStone::GemFire::Cache::PoolFactory::SetMaxConnections ( Int32  maxConnections  ) 

Set the max number of client to server connections that the pool will create.

If all of the connections are in use, an operation requiring a client to server connection will block until a connection is available. see setFreeConnectionTimeout(int)

maxConnections the maximum number of connections in the pool. -1 indicates that there is no maximum number of connections.

throws IllegalArgumentException if maxConnections is less than minConnections.

PoolFactory ^ GemStone::GemFire::Cache::PoolFactory::SetMinConnections ( Int32  minConnections  ) 

Set the minimum number of connections to keep available at all times.

When the pool is created, it will create this many connections. If 0 then connections will not be made until an actual operation is done that requires client-to-server communication.

minConnections the initial number of connections this pool will create.

throws IllegalArgumentException if minConnections is less than 0.

PoolFactory ^ GemStone::GemFire::Cache::PoolFactory::SetMultiuserAuthentication ( bool  multiuserAuthentication  ) 

Sets whether pool is in multiuser mode If its in multiuser mode then app needs to get instance of cache from pool.getCache("creds"), to do the operations on cache. multiuserAuthentication should be true/false. Default value is false;

PoolFactory ^ GemStone::GemFire::Cache::PoolFactory::SetPingInterval ( Int32  pingInterval  ) 

Set how often to ping servers to verify that they are still alive.

Each server will be sent a ping every pingInterval if there has not been any other communication with the server. These pings are used by the server to monitor the health of the client. Make sure that the pingInterval is less than the maximum time between pings allowed by the bridge server. see in CacheServer: setMaximumTimeBetweenPings(int)

pingInterval The amount of time in milliseconds between pings.

throws IllegalArgumentException if pingInterval is less than 0.

PoolFactory ^ GemStone::GemFire::Cache::PoolFactory::SetPRSingleHopEnabled ( Boolean  enabled  ) 

By default SetPRSingleHopEnabled is true.

The client is aware of location of partitions on servers hosting Using this information, the client routes the client cache operations directly to the server which is hosting the required partition for the cache operation. If SetPRSingleHopEnabled is false the client can do an extra hop on servers to go to the required partition for that cache operation. The SetPRSingleHopEnabled avoids extra hops only for following cache operations : put, get & destroy operations.

PoolFactory ^ GemStone::GemFire::Cache::PoolFactory::SetReadTimeout ( Int32  timeout  ) 

Sets the number of milliseconds to wait for a response from a server before timing out the operation and trying another server (if any are available).

timeout number of milliseconds to wait for a response from a server

throws IllegalArgumentException if timeout is less than or equal to 0.

PoolFactory ^ GemStone::GemFire::Cache::PoolFactory::SetRetryAttempts ( Int32  retryAttempts  ) 

Set the number of times to retry a request after timeout/exception.

retryAttempts The number of times to retry a request after timeout/exception. -1 indicates that a request should be tried against every available server before failing.

throws IllegalArgumentException if idleTimout is less than 0.

PoolFactory ^ GemStone::GemFire::Cache::PoolFactory::SetServerGroup ( String^   group  ) 

Configures the group that all servers this pool connects to must belong to.

group the server group that this pool will connect to. If null or "" then all servers will be connected to.

PoolFactory ^ GemStone::GemFire::Cache::PoolFactory::SetSocketBufferSize ( Int32  bufferSize  ) 

Sets the socket buffer size for each connection made in this pool.

Large messages can be received and sent faster when this buffer is larger. Larger buffers also optimize the rate at which servers can send events for client subscriptions.

bufferSize the size of the socket buffers used for reading and writing on each connection in this pool.

throws IllegalArgumentException if bufferSize is less than or equal to 0.

PoolFactory ^ GemStone::GemFire::Cache::PoolFactory::SetStatisticInterval ( Int32  statisticInterval  ) 

Set how often to send client statistics to the server.

Doing this allows gfmon to monitor clients. A value of -1 disables the sending of client statistics to the server. statisticInterval The amount of time in milliseconds between sends of client statistics to the server.

throws IllegalArgumentException if statisticInterval is less than -1.

PoolFactory ^ GemStone::GemFire::Cache::PoolFactory::SetSubscriptionAckInterval ( Int32  ackInterval  ) 

Sets the is the interval in milliseconds to wait before sending acknowledgements to the bridge server for events received from the server subscriptions.

ackInterval number of milliseconds to wait before sending event acknowledgements.

throws IllegalArgumentException if ackInterval is less than or equal to 0.

PoolFactory ^ GemStone::GemFire::Cache::PoolFactory::SetSubscriptionEnabled ( Boolean  enabled  ) 

Enable subscriptions.

If set to true then the created pool will have server-to-client subscriptions enabled. If set to false then all Subscription* attributes are ignored at create time.

PoolFactory ^ GemStone::GemFire::Cache::PoolFactory::SetSubscriptionMessageTrackingTimeout ( Int32  messageTrackingTimeout  ) 

Sets the messageTrackingTimeout attribute which is the time-to-live period, in milliseconds, for subscription events the client has received from the server.

It's used to minimize duplicate events. Entries that have not been modified for this amount of time are expired from the list.

messageTrackingTimeout number of milliseconds to set the timeout to.

throws IllegalArgumentException if messageTrackingTimeout is less than or equal to 0.

PoolFactory ^ GemStone::GemFire::Cache::PoolFactory::SetSubscriptionRedundancy ( Int32  redundancy  ) 

Sets the redundancy level for this pools server-to-client subscriptions.

If 0 then no redundant copies will be kept on the servers. Otherwise an effort will be made to maintain the requested number of copies of the server-to-client subscriptions. At most one copy per server will be made up to the requested level.

redundancy the number of redundant servers for this client's subscriptions.

throws IllegalArgumentException if redundancyLevel is less than -1.

PoolFactory ^ GemStone::GemFire::Cache::PoolFactory::SetThreadLocalConnections ( Boolean  enabled  ) 

Enable ThreadLocalConnection.

Sets the thread local connections policy for this pool. If true then any time a thread goes to use a connection from this pool it will check a thread local cache and see if it already has a connection in it. If so it will use it. If not it will get one from this pool and cache it in the thread local. This gets rid of thread contention for the connections but increases the number of connections the servers see. If false then connections are returned to the pool as soon as the operation being done with the connection completes. This allows connections to be shared amonst multiple threads keeping the number of connections down.


GemFire C++ Cache .NET API Documentation