com.gemstone.gemfire.cache.server
Interface ClientSubscriptionConfig

public interface ClientSubscriptionConfig

Used to configure queuing on a cache server for client subscriptions.

• For eviction-policy none client queue entries are not evicted to disk
  
• For eviction-policy mem client queue entries are evicted to disk when limit is reached, defined by capacity
• For eviction-policy entry HA entries are evicted to disk when limit is reached, defined by capacity

Configuration:

The client queue is configurable declaratively or programmatically. Declarative configuration is achieved through defining the configuration parameters in a cache.xml file. Programmatic configuration may be achieved by first instantiating a CacheServer object and get CacheServer.getClientSubscriptionConfig() ClientSubscriptionConfig object and modify each desired parameter and value.

If you are using a cache.xml file to create a CacheServer declaratively, you can do the following to configure ClientSubscriptionConfig and to have none eviction policy no need to specify client-subscription tag as it is a default one.

 <cache-server port=4444>
   <client-subscription eviction-policy="entry | mem" capacity=35 overflow-directory="OverflowDir"></client-subscription>
 </cache-server>
 

Since:

5.7

See Also:

getEvictionPolicy(), getCapacity()

Field Summary

static int	DEFAULT_CAPACITY The default limit that is assigned to client subscription.
static String	DEFAULT_EVICTION_POLICY The default eviction policy that is assigned to client subscription.
static String	DEFAULT_OVERFLOW_DIRECTORY The default overflow directory that is assigned to client subscription.

Method Summary

int	getCapacity() Returns the capacity of the client queue.
String	getEvictionPolicy() Returns the eviction policy that is executed when capacity of the client queue is reached.
String	getOverflowDirectory() Answers the overflow directory for a client queue's overflowed client queue entries.
void	setCapacity(int capacity) Sets the capacity of the client queue.
void	setEvictionPolicy(String policy) Sets the eviction policy that is executed when capacity of the client queue is reached.
void	setOverflowDirectory(String overflowDirectory) Sets the overflow directory for a client queue

Field Detail

DEFAULT_CAPACITY

static final int DEFAULT_CAPACITY

The default limit that is assigned to client subscription.

See Also:

Constant Field Values

DEFAULT_EVICTION_POLICY

static final String DEFAULT_EVICTION_POLICY

The default eviction policy that is assigned to client subscription.

See Also:

Constant Field Values

DEFAULT_OVERFLOW_DIRECTORY

static final String DEFAULT_OVERFLOW_DIRECTORY

The default overflow directory that is assigned to client subscription.

See Also:

Constant Field Values

Method Detail

getCapacity

int getCapacity()

Returns the capacity of the client queue. will be in MB for eviction-policy mem else number of entries

Since:

5.7

See Also:

DEFAULT_CAPACITY

setCapacity

void setCapacity(int capacity)

Sets the capacity of the client queue. will be in MB for eviction-policy mem else number of entries

Since:

5.7

See Also:

DEFAULT_CAPACITY

getEvictionPolicy

String getEvictionPolicy()

Returns the eviction policy that is executed when capacity of the client queue is reached.

Since:

5.7

See Also:

DEFAULT_EVICTION_POLICY

setEvictionPolicy

void setEvictionPolicy(String policy)

Sets the eviction policy that is executed when capacity of the client queue is reached.

Since:

5.7

See Also:

DEFAULT_EVICTION_POLICY

setOverflowDirectory

void setOverflowDirectory(String overflowDirectory)

Sets the overflow directory for a client queue

Parameters:

overflowDirectory - the overflow directory for a client queue's overflowed entries

Since:

5.7

getOverflowDirectory

String getOverflowDirectory()

Answers the overflow directory for a client queue's overflowed client queue entries.

Returns:

the overflow directory for a client queue's overflowed entries

Since:

5.7