RegionAttributes (GemFire Java API Documentation)

```
public interface RegionAttributes<K,V>
```
Defines attributes for configuring a region. These are EvictionAttributes, CacheListener, CacheLoader, CacheWriter, scope, data policy, and expiration attributes for the region itself, expiration attributes for the region entries, and whether statistics are enabled for the region and its entries. To create an instance of this interface use AttributesFactory.createRegionAttributes(). For compatibility rules and default values, see AttributesFactory.
Note that the RegionAttributes are not distributed with the region.

Since:

2.0

See Also:
AttributesFactory, AttributesMutator, Region.getAttributes(), EvictionAttributes

Method Summary

Methods
Modifier and Type	Method and Description
`Set<String>`	`getAsyncEventQueueIds()` Returns a set of AsyncEventQueueIds added to the region
`CacheListener<K,V>`	`getCacheListener()` Deprecated. as of GemFire 5.0, use `getCacheListeners()` instead
`CacheListener<K,V>[]`	`getCacheListeners()` Returns an array of all the cache listeners on this attributes.
`CacheLoader<K,V>`	`getCacheLoader()` Returns the cache loader associated with this region.
`CacheWriter<K,V>`	`getCacheWriter()` Returns the cache writer associated with this region.
`boolean`	`getCloningEnabled()` Returns whether or not cloning is enabled on region.
`Compressor`	`getCompressor()` Returns the compressor used by this region's entry values.
`boolean`	`getConcurrencyChecksEnabled()` Returns true if concurrent update checks are turned on for this region.
`int`	`getConcurrencyLevel()` Returns the concurrencyLevel of the entries map.
`CustomExpiry<K,V>`	`getCustomEntryIdleTimeout()` Gets the `idleTimeout` `CustomExpiry`, if any for entries in this region
`CustomExpiry<K,V>`	`getCustomEntryTimeToLive()` Gets the `entryTimeToLive` `CustomExpiry`, if any for entries in this region
`DataPolicy`	`getDataPolicy()` Returns the data policy for this region.
`File[]`	`getDiskDirs()` Deprecated. as of 6.5 use `DiskStore.getDiskDirs()` instead.
`int[]`	`getDiskDirSizes()` Deprecated. as of 6.5 use `DiskStore.getDiskDirSizes()` instead.
`String`	`getDiskStoreName()` Returns the name of the `DiskStore` that this region belongs to, if any.
`DiskWriteAttributes`	`getDiskWriteAttributes()` Deprecated. as of 6.5 use `getDiskStoreName()` instead.
`boolean`	`getEarlyAck()` Deprecated. Setting early ack no longer has any effect.
`boolean`	`getEnableAsyncConflation()` Returns whether or not async conflation is enabled for sending messages to async peers.
`boolean`	`getEnableBridgeConflation()` Deprecated. as of GemFire 5.0, use `getEnableSubscriptionConflation()` instead
`boolean`	`getEnableConflation()` Deprecated. as of GemFire 5.0, use `getEnableSubscriptionConflation()` instead #
`boolean`	`getEnableGateway()` Returns whether or not a Gateway is enabled.
`boolean`	`getEnableSubscriptionConflation()` Returns whether or not conflation is enabled for sending messages from a cache server to its clients.
`boolean`	`getEnableWAN()` Deprecated. as of GemFire 5.0, use getEnableGateway instead
`ExpirationAttributes`	`getEntryIdleTimeout()` Gets the `idleTimeout` expiration attributes for entries in this region.
`ExpirationAttributes`	`getEntryTimeToLive()` Gets the `timeToLive` expiration attributes for entries in this region.
`EvictionAttributes`	`getEvictionAttributes()` Attributes that control the size of the `Region` using an `EvictionAlgorithm` and a `EvictionAction`.
`String`	`getGatewayHubId()` Returns the id of the `GatewayHub` to which events are distributed.
`Set<String>`	`getGatewaySenderIds()` Returns a set of gatewaysenderIds
`boolean`	`getIgnoreJTA()` Gets the flag telling a region to ignore JTA transactions.
`boolean`	`getIndexMaintenanceSynchronous()` Returns the value of `IndexMaintenanceSynchronous` which specifies whether the region indexes are updated synchronously when a region is modified or asynchronously in a background thread.
`int`	`getInitialCapacity()` Returns the initial capacity of the entries map.
`Class<K>`	`getKeyConstraint()` Returns the class that the keys in this region are constrained to.
`float`	`getLoadFactor()` Returns the load factor of the entries map.
`MembershipAttributes`	`getMembershipAttributes()` Returns the `MembershipAttributes` that configure required roles for reliable access to the region.
`MirrorType`	`getMirrorType()` Deprecated. as of GemFire 5.0, use `getDataPolicy()` instead.
`boolean`	`getMulticastEnabled()` Returns true if multicast communications are enabled for this region.
`PartitionAttributes`	`getPartitionAttributes()` Returns the `PartitionAttributes` that configure how the region is partitioned.
`boolean`	`getPersistBackup()` Deprecated. as of GemFire 5.0, use `DataPolicy.PERSISTENT_REPLICATE` instead
`String`	`getPoolName()` Returns the name of the `Pool` that this region will use to communicate with servers, if any.
`boolean`	`getPublisher()` Deprecated. as of 6.5
`ExpirationAttributes`	`getRegionIdleTimeout()` Gets the idleTimeout expiration attributes for the region as a whole.
`ExpirationAttributes`	`getRegionTimeToLive()` Gets the `timeToLive` expiration attributes for the region as a whole.
`Scope`	`getScope()` Returns the scope of the region.
`boolean`	`getStatisticsEnabled()` Returns whether the statistics are enabled for this region and its entries.
`SubscriptionAttributes`	`getSubscriptionAttributes()` Returns the `SubscriptionAttributes` that configure how this region behaves as a subscriber to remote caches.
`Class<V>`	`getValueConstraint()` Returns the class that the values in this region are constrained to.
`boolean`	`isDiskSynchronous()` Returns true if configured synchronous disk writes.
`boolean`	`isLockGrantor()` Returns true if this member is configured to be lock grantor for the region.

- Method Detail
  - getCacheLoader
```
CacheLoader<K,V> getCacheLoader()
```
    Returns the cache loader associated with this region.
    
    Returns:
    the cache loader
  - getCacheWriter
```
CacheWriter<K,V> getCacheWriter()
```
    Returns the cache writer associated with this region.
    
    Returns:
    the cache writer
  - getKeyConstraint
```
Class<K> getKeyConstraint()
```
    Returns the class that the keys in this region are constrained to.
    
    Returns:
    the Class the keys must be an instanceof
  - getValueConstraint
```
Class<V> getValueConstraint()
```
    Returns the class that the values in this region are constrained to.
    
    Returns:
    the Class the values must be an instanceof
  - getRegionTimeToLive
```
ExpirationAttributes getRegionTimeToLive()
```
    Gets the timeToLive expiration attributes for the region as a whole. Default is 0 which indicates that no expiration of this type will happen.
    
    Returns:
    the timeToLive expiration attributes for this region
  - getRegionIdleTimeout
```
ExpirationAttributes getRegionIdleTimeout()
```
    Gets the idleTimeout expiration attributes for the region as a whole. Default is 0 which indicates that no expiration of this type will happen. Note that the XML element that corresponds to this method "region-idle-time", does not include "out" in its name.
    
    Returns:
    the IdleTimeout expiration attributes for this region
  - getEntryTimeToLive
```
ExpirationAttributes getEntryTimeToLive()
```
    Gets the timeToLive expiration attributes for entries in this region. Default is 0 which indicates that no expiration of this type is set.
    
    Returns:
    the timeToLive expiration attributes for entries in this region
  - getEntryIdleTimeout
```
ExpirationAttributes getEntryIdleTimeout()
```
    Gets the idleTimeout expiration attributes for entries in this region. Default is 0 which indicates that no expiration of this type is set. Note that the XML element that corresponds to this method "entry-idle-time", does not include "out" in its name.
    
    Returns:
    the idleTimeout expiration attributes for entries in this region
  - getCustomEntryTimeToLive
```
CustomExpiry<K,V> getCustomEntryTimeToLive()
```
    Gets the entryTimeToLive CustomExpiry, if any for entries in this region
    
    Returns:
    the entryTimeToLive CustomExpiry for entries in this region
  - getCustomEntryIdleTimeout
```
CustomExpiry<K,V> getCustomEntryIdleTimeout()
```
    Gets the idleTimeout CustomExpiry, if any for entries in this region
    
    Returns:
    the idleTimeout CustomExpiry for entries in this region
  - getIgnoreJTA
```
boolean getIgnoreJTA()
```
    Gets the flag telling a region to ignore JTA transactions. Default value is set to false.
    
    Since:
    
    5.0
  - getMirrorType
```
@Deprecated
MirrorType getMirrorType()
```
    Deprecated. as of GemFire 5.0, use getDataPolicy() instead.
    
    Returns the type of mirroring for this region.
    
    Returns:
    the region's MirrorType
  - getDataPolicy
```
DataPolicy getDataPolicy()
```
    Returns the data policy for this region. Default value of DataPolicy is set to 'Normal'. Please refer the gemfire documentation for more details on this.
    
    Returns:
    the region's DataPolicy
    Since:
    
    5.0
  - getScope
```
Scope getScope()
```
    Returns the scope of the region. Default scope is DISTRIBUTED_NO_ACK. Please refer the gemfire documentation for more details on this.
    
    Returns:
    the region's Scope
  - getEvictionAttributes
```
EvictionAttributes getEvictionAttributes()
```
    Attributes that control the size of the Region using an EvictionAlgorithm and a EvictionAction.
    
    Returns:
    the region's EvictionAttributes
  - getCacheListener
```
@Deprecated
CacheListener<K,V> getCacheListener()
```
    Deprecated. as of GemFire 5.0, use getCacheListeners() instead
    
    Returns the cache listener for the region.
    
    Returns:
    the region's CacheListener
    
    Throws:
    
    IllegalStateException - if more than one cache listener exists on this attributes
  - getCacheListeners
```
CacheListener<K,V>[] getCacheListeners()
```
    Returns an array of all the cache listeners on this attributes. Modifications to the returned array will not effect the attributes.
    
    Returns:
    the region's CacheListeners; an empty array if no listeners
    Since:
    
    5.0
  - getInitialCapacity
```
int getInitialCapacity()
```
    Returns the initial capacity of the entries map. Default is 16.
    
    Returns:
    the initial capacity of the entries map
    See Also:
    HashMap
  - getLoadFactor
```
float getLoadFactor()
```
    Returns the load factor of the entries map. Default is 0.75.
    
    Returns:
    the load factor of the entries map
    See Also:
    HashMap
  - isLockGrantor
```
boolean isLockGrantor()
```
    Returns true if this member is configured to be lock grantor for the region. Result will always be false if the scope is not Scope.GLOBAL.
    This attribute does not indicate whether or not this member is currently lock grantor. It only indicates that at the time of region creation, this member should attempt to become lock grantor. Default value is false.
    
    Returns:
    true if this member is configured to be lock grantor for the region
    See Also:
    AttributesFactory, Region.becomeLockGrantor()
  - getMulticastEnabled
```
boolean getMulticastEnabled()
```
    Returns true if multicast communications are enabled for this region. Multicast must also be enabled in the DistributedSystem. Default value is set to false.
    
    Returns:
    true if this region is configured to allow use of multicast for distributed messaging
    Since:
    
    5.0
    
    See Also:
    AttributesFactory.setMulticastEnabled(boolean)
  - getConcurrencyLevel
```
int getConcurrencyLevel()
```
    Returns the concurrencyLevel of the entries map. Default is 16.
    
    Returns:
    the concurrencyLevel
    See Also:
    AttributesFactory
  - getPersistBackup
```
@Deprecated
boolean getPersistBackup()
```
    Deprecated. as of GemFire 5.0, use DataPolicy.PERSISTENT_REPLICATE instead
    
    Returns whether or not a persistent backup should be made of the region (as opposed to just writing the overflow data to disk).
    
    Since:
    
    3.2
  - getDiskWriteAttributes
```
@Deprecated
DiskWriteAttributes getDiskWriteAttributes()
```
    Deprecated. as of 6.5 use getDiskStoreName() instead.
    
    Returns the DiskWriteAttributes that configure how the region is written to disk.
    
    Since:
    
    3.2
  - getDiskDirs
```
@Deprecated
File[] getDiskDirs()
```
    Deprecated. as of 6.5 use DiskStore.getDiskDirs() instead.
    
    Returns the directories to which the region's data are written. If multiple directories are used, GemFire will attempt to distribute the data evenly amongst them.
    
    Since:
    
    3.2
  - getIndexMaintenanceSynchronous
```
boolean getIndexMaintenanceSynchronous()
```
    Returns the value of IndexMaintenanceSynchronous which specifies whether the region indexes are updated synchronously when a region is modified or asynchronously in a background thread. Default value is true.
    
    Since:
    
    4.0
  - getPartitionAttributes
```
PartitionAttributes getPartitionAttributes()
```
    Returns the PartitionAttributes that configure how the region is partitioned.
    
    Since:
    
    5.0
  - getMembershipAttributes
```
MembershipAttributes getMembershipAttributes()
```
    Returns the MembershipAttributes that configure required roles for reliable access to the region.
    
    Since:
    
    5.0
  - getSubscriptionAttributes
```
SubscriptionAttributes getSubscriptionAttributes()
```
    Returns the SubscriptionAttributes that configure how this region behaves as a subscriber to remote caches.
    
    Since:
    
    5.0
  - getStatisticsEnabled
```
boolean getStatisticsEnabled()
```
    Returns whether the statistics are enabled for this region and its entries. Default is false.
    
    Returns:
    true if statistics are enabled
  - getEarlyAck
```
@Deprecated
boolean getEarlyAck()
```
    Deprecated. Setting early ack no longer has any effect.
    
    Returns whether or not acks are sent after an update is processed.
    
    Returns:
    True if acks are sent after updates are processed; false if acks are sent before updates are processed.
    Since:
    
    4.1
  - getEnableWAN
```
@Deprecated
boolean getEnableWAN()
```
    Deprecated. as of GemFire 5.0, use getEnableGateway instead
    
    Returns whether or not a Gateway is enabled. #
    
    Returns:
    True if a Gateway is enabled; false if no Gateway is enabled (default).
    Since:
    
    4.2
  - getEnableGateway
```
boolean getEnableGateway()
```
    Returns whether or not a Gateway is enabled.
    
    Returns:
    True if a Gateway is enabled; false if no Gateway is enabled (default).
    Since:
    
    5.0
  - getGatewayHubId
```
String getGatewayHubId()
```
    Returns the id of the GatewayHub to which events are distributed.
    
    Returns:
    the id of the GatewayHub to which events are distributed
    Since:
    
    5.1
  - getPublisher
```
boolean getPublisher()
```
    Deprecated. as of 6.5
    
    Returns whether or not this region is a publisher. Publishers are regions on which distributed write operations are done.
    
    Returns:
    True if a publisher; false if not (default).
    Since:
    
    4.2.3
  - getEnableConflation
```
@Deprecated
boolean getEnableConflation()
```
    Deprecated. as of GemFire 5.0, use getEnableSubscriptionConflation() instead #
    
    Returns whether or not conflation is enabled for sending messages from a cache server to its clients. Note: This parameter is only valid for cache server to client communication. It has no effect in peer to peer communication.
    
    Returns:
    True if conflation is enabled; false conflation is not enabled (default).
    Since:
    
    4.2
  - getEnableBridgeConflation
```
@Deprecated
boolean getEnableBridgeConflation()
```
    Deprecated. as of GemFire 5.0, use getEnableSubscriptionConflation() instead
    
    Returns whether or not conflation is enabled for sending messages from a cache server to its clients. Note: This parameter is only valid for cache server to client communication. It has no effect in peer to peer communication.
    
    Returns:
    True if conflation is enabled; false conflation is not enabled (default).
    Since:
    
    5.0
  - getEnableSubscriptionConflation
```
boolean getEnableSubscriptionConflation()
```
    Returns whether or not conflation is enabled for sending messages from a cache server to its clients. Note: This parameter is only valid for cache server to client communication. It has no effect in peer to peer communication. Default is false.
    
    Returns:
    True if conflation is enabled; false conflation is not enabled (default).
    Since:
    
    5.7
  - getEnableAsyncConflation
```
boolean getEnableAsyncConflation()
```
    Returns whether or not async conflation is enabled for sending messages to async peers. Default is false.
    
    Returns:
    True if async conflation is enabled; false async conflation is not enabled (default).
    Since:
    
    4.2.3
  - getDiskDirSizes
```
int[] getDiskDirSizes()
```
    Deprecated. as of 6.5 use DiskStore.getDiskDirSizes() instead.
    
    Returns the sizes of the disk directories in megabytes
    
    Returns:
    int[] sizes of the disk directories
  - getPoolName
```
String getPoolName()
```
    Returns the name of the Pool that this region will use to communicate with servers, if any. Returns null if this region communicates with peers.
    
    Returns:
    the name of the client-server Pool this region will use for server communication; null is returned if the region communicates with peers.
    Since:
    
    5.7
  - getCloningEnabled
```
boolean getCloningEnabled()
```
    Returns whether or not cloning is enabled on region. Default is false.
    
    Returns:
    True if cloning is enabled; false cloning is not enabled (default).
    Since:
    
    6.1
  - getDiskStoreName
```
String getDiskStoreName()
```
    Returns the name of the DiskStore that this region belongs to, if any. Returns null if this region belongs to default DiskStore.
    
    Returns:
    the name of the DiskStore of this region; null is returned if this region belongs to default DiskStore.
    Since:
    
    6.5
  - isDiskSynchronous
```
boolean isDiskSynchronous()
```
    Returns true if configured synchronous disk writes. Default is set to true.
    
    Returns:
    Returns true if writes to disk are synchronous and false otherwise
    Since:
    
    6.5
  - getGatewaySenderIds
```
Set<String> getGatewaySenderIds()
```
    Returns a set of gatewaysenderIds
  - getAsyncEventQueueIds
```
Set<String> getAsyncEventQueueIds()
```
    Returns a set of AsyncEventQueueIds added to the region
  - getConcurrencyChecksEnabled
```
boolean getConcurrencyChecksEnabled()
```
    Returns true if concurrent update checks are turned on for this region.
    When this is enabled, concurrent updates will be conflated if they are applied out of order.
    All members must set this attribute the same. Default is set to true.
    
    Returns:
    true if concurrent update checks are turned on
    Since:
    
    7.0
  - getCompressor
```
Compressor getCompressor()
```
    Returns the compressor used by this region's entry values.
    
    Returns:
    null if the region does not have compression enabled.
    Since:
    
    8.0

Interface RegionAttributes<K,V>

Method Summary

Method Detail

getCacheLoader

getCacheWriter

getKeyConstraint

getValueConstraint

getRegionTimeToLive

getRegionIdleTimeout

getEntryTimeToLive

getEntryIdleTimeout

getCustomEntryTimeToLive

getCustomEntryIdleTimeout

getIgnoreJTA

getMirrorType

getDataPolicy

getScope

getEvictionAttributes

getCacheListener

getCacheListeners

getInitialCapacity

getLoadFactor

isLockGrantor

getMulticastEnabled

getConcurrencyLevel

getPersistBackup

getDiskWriteAttributes

getDiskDirs

getIndexMaintenanceSynchronous

getPartitionAttributes

getMembershipAttributes

getSubscriptionAttributes

getStatisticsEnabled

getEarlyAck

getEnableWAN

getEnableGateway

getGatewayHubId

getPublisher

getEnableConflation

getEnableBridgeConflation

getEnableSubscriptionConflation

getEnableAsyncConflation

getDiskDirSizes

getPoolName

getCloningEnabled

getDiskStoreName

isDiskSynchronous

getGatewaySenderIds

getAsyncEventQueueIds

getConcurrencyChecksEnabled

getCompressor