PartitionAttributesFactory (GemFire Java API Documentation)

java.lang.Object
- com.gemstone.gemfire.cache.PartitionAttributesFactory<K,V>

```
public class PartitionAttributesFactory<K,V>
extends Object
```
A factory that creates instances of PartitionAttributes which are used to create a partitioned Region. The setter methods follow the self-return idiom so that they can be "chained" together with the create() method to create PartitionAttributes. For example:
```
 PartitionAttributes pa = new PartitionAttributesFactory()
  .setRedundantCopies(1)
  .setLocalMaxMemory(1240)
  .create();
     
 final Region myRegion = new RegionFactory()
  .setPartitionAttributes(pa)
  .setKeyConstraint(String.class)
  .setValueConstraint(ArrayList.class)
  .create("myRegion");
 
```
PartitionAttributes can also be defined in a declarative fashion using a cache.xml file. Here is an example of how to configure a Partitioned Region named "pRoot" whose Scope is Distributed Ack, which maintains a redundant copy of any given Region.Entry, configures a CacheLoader implementation, and sets global properties as well as local max memory to use.
```
    <root-region name="pRoot">
      <region-attributes scope="distributed-ack" >
        <partition-attributes redundant-copies="1", local-max-memory="1240"/>
      </region-attributes>
    </root-region>
 
```
Since:

5.0

See Also:
PartitionAttributes, AttributesFactory.setPartitionAttributes(PartitionAttributes)

Field Summary

Fields
Modifier and Type	Field and Description
`static int`	`GLOBAL_MAX_BUCKETS_DEFAULT` The default total number of buckets (113).
`static String`	`GLOBAL_MAX_BUCKETS_PROPERTY` Deprecated. - please use `setTotalNumBuckets(int)` instead. This setting must be the same in all processes using the Region.
`static long`	`GLOBAL_MAX_MEMORY_DEFAULT` Default maximum total size of the region across all processes, in megabytes.
`static String`	`GLOBAL_MAX_MEMORY_PROPERTY` Deprecated. - use `setTotalMaxMemory(long)` instead. The `global property` name that defines the total maximum size for the partitioned Region. This setting must be the same in all processes using the Region.
`static int`	`LOCAL_MAX_MEMORY_DEFAULT` The default maximum amount of memory to be used by this region in this process, in megabytes.
`static String`	`LOCAL_MAX_MEMORY_PROPERTY` Deprecated. - please use the `setLocalMaxMemory(int)` method instead. The `local property` name that sets the maximum heap storage a VM contributes to a partitioned Region. When set to zero, the resulting Region reference allows access to the partitioned Region without any consuming any heap storage.
`static long`	`RECOVERY_DELAY_DEFAULT`
`static long`	`STARTUP_RECOVERY_DELAY_DEFAULT`

Constructor Summary

Constructors
Constructor and Description
`PartitionAttributesFactory()` Creates a new instance of PartitionAttributesFactory ready to create a `PartitionAttributes` with default settings.
`PartitionAttributesFactory(PartitionAttributes pa)` Creates a new instance of PartitionAttributesFactory ready to create a `PartitionAttributes` with the same settings as those in the specified `PartitionAttributes`

Method Summary

Methods
Modifier and Type	Method and Description
`PartitionAttributesFactory<K,V>`	`addFixedPartitionAttributes(FixedPartitionAttributes fpa)` FixedPartitionAttributes defined for this partitioned region is added to PR attributes.
`PartitionAttributesFactory<K,V>`	`addPartitionListener(PartitionListener listener)` adds a PartitionListener for the partitioned region.
`PartitionAttributes<K,V>`	`create()` Creates a `PartitionAttributes` with the current settings.
`PartitionAttributesFactory<K,V>`	`setColocatedWith(String colocatedRegionFullPath)` Sets the name of the PartitionRegion with which this newly created partitioned region is colocated
`PartitionAttributesFactory<K,V>`	`setGlobalProperties(Properties globalProps)` Deprecated. use `setTotalMaxMemory(long)` and `setTotalNumBuckets(int)` in GemFire 5.1 and later releases
`PartitionAttributesFactory<K,V>`	`setLocalMaxMemory(int mb)` Sets the maximum amount of memory, in megabytes, to be used by the region in this process.
`PartitionAttributesFactory<K,V>`	`setLocalProperties(Properties localProps)` Deprecated. use `setLocalMaxMemory(int)` in GemFire 5.1 and later releases
`PartitionAttributesFactory<K,V>`	`setPartitionResolver(PartitionResolver<K,V> resolver)` Sets the `PartitionResolver` for the PartitionRegion.
`PartitionAttributesFactory<K,V>`	`setRecoveryDelay(long recoveryDelay)` Sets the delay in milliseconds that existing members will wait before satisfying redundancy after another member crashes.
`PartitionAttributesFactory<K,V>`	`setRedundantCopies(int redundantCopies)` Sets the number of extra copies of buckets desired.
`PartitionAttributesFactory<K,V>`	`setStartupRecoveryDelay(long startupRecoveryDelay)` Sets the delay in milliseconds that new members will wait before satisfying redundancy. -1 indicates that adding new members will not trigger redundancy recovery.
`PartitionAttributesFactory<K,V>`	`setTotalMaxMemory(long mb)` Sets the maximum amount of memory, in megabytes, to be used by the region in all processes.
`PartitionAttributesFactory<K,V>`	`setTotalNumBuckets(int numBuckets)` Sets the total number of hash buckets to be used by the region in all processes.

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - LOCAL_MAX_MEMORY_PROPERTY
```
public static final String LOCAL_MAX_MEMORY_PROPERTY
```
    Deprecated. - please use the setLocalMaxMemory(int) method instead.
    The local property name that sets the maximum heap storage a VM contributes to a partitioned Region. When set to zero, the resulting Region reference allows access to the partitioned Region without any consuming any heap storage.
    
    See Also:
    Constant Field Values
  - LOCAL_MAX_MEMORY_DEFAULT
```
public static final int LOCAL_MAX_MEMORY_DEFAULT
```
    The default maximum amount of memory to be used by this region in this process, in megabytes.
  - GLOBAL_MAX_MEMORY_PROPERTY
```
public static final String GLOBAL_MAX_MEMORY_PROPERTY
```
    Deprecated. - use setTotalMaxMemory(long) instead.
    The global property name that defines the total maximum size for the partitioned Region.
    This setting must be the same in all processes using the Region.
    
    See Also:
    Constant Field Values
  - GLOBAL_MAX_MEMORY_DEFAULT
```
public static final long GLOBAL_MAX_MEMORY_DEFAULT
```
    Default maximum total size of the region across all processes, in megabytes.
    
    See Also:
    Constant Field Values
  - GLOBAL_MAX_BUCKETS_PROPERTY
```
public static final String GLOBAL_MAX_BUCKETS_PROPERTY
```
    Deprecated. - please use setTotalNumBuckets(int) instead.
    This setting must be the same in all processes using the Region.
    
    See Also:
    Constant Field Values
  - GLOBAL_MAX_BUCKETS_DEFAULT
```
public static final int GLOBAL_MAX_BUCKETS_DEFAULT
```
    The default total number of buckets (113).
    
    See Also:
    Constant Field Values
  - RECOVERY_DELAY_DEFAULT
```
public static final long RECOVERY_DELAY_DEFAULT
```
    See Also:
    Constant Field Values
  - STARTUP_RECOVERY_DELAY_DEFAULT
```
public static final long STARTUP_RECOVERY_DELAY_DEFAULT
```
    See Also:
    Constant Field Values
- Constructor Detail
  - PartitionAttributesFactory
```
public PartitionAttributesFactory()
```
    Creates a new instance of PartitionAttributesFactory ready to create a PartitionAttributes with default settings.
  - PartitionAttributesFactory
```
public PartitionAttributesFactory(PartitionAttributes pa)
```
    Creates a new instance of PartitionAttributesFactory ready to create a PartitionAttributes with the same settings as those in the specified PartitionAttributes
    
    Parameters:
    pa - the PartitionAttributes used to initialize this PartitionAttributesFactory
- Method Detail
  - setRedundantCopies
```
public PartitionAttributesFactory<K,V> setRedundantCopies(int redundantCopies)
```
    Sets the number of extra copies of buckets desired. Extra copies allow for both high availability in the face of VM departure (intended or unintended) and and load balancing read operations.
    This setting must be the same in all processes using the Region. Default number of redundant copies is 0.
    
    Parameters:
    redundantCopies - the number of redundant bucket copies, limited to values 0, 1, 2 and 3.
    
    Returns:
    this
  - setLocalMaxMemory
```
public PartitionAttributesFactory<K,V> setLocalMaxMemory(int mb)
```
    Sets the maximum amount of memory, in megabytes, to be used by the region in this process. If not set, a default of 90% of available heap is used.
  - setTotalMaxMemory
```
public PartitionAttributesFactory<K,V> setTotalMaxMemory(long mb)
```
    Sets the maximum amount of memory, in megabytes, to be used by the region in all processes.
    This setting must be the same in all processes using the Region. The default value is Integer.MAX_VALUE.
  - setTotalNumBuckets
```
public PartitionAttributesFactory<K,V> setTotalNumBuckets(int numBuckets)
```
    Sets the total number of hash buckets to be used by the region in all processes.
    This setting must be the same in all processes using the Region.
    A bucket is the smallest unit of data management in a partitioned region. Entries are stored in buckets and buckets may move from one VM to another. Buckets may also have copies, depending on redundancy to provide high availability in the face of VM failure.
    
    The number of buckets should be prime and as a rough guide at the least four times the number of partition VMs. However, there is significant overhead to managing a bucket, particularly for higher values of redundancy.
    The default number of buckets for a PartitionedRegion is 113.
  - setPartitionResolver
```
public PartitionAttributesFactory<K,V> setPartitionResolver(PartitionResolver<K,V> resolver)
```
    Sets the PartitionResolver for the PartitionRegion.
  - setColocatedWith
```
public PartitionAttributesFactory<K,V> setColocatedWith(String colocatedRegionFullPath)
```
    Sets the name of the PartitionRegion with which this newly created partitioned region is colocated
  - setRecoveryDelay
```
public PartitionAttributesFactory<K,V> setRecoveryDelay(long recoveryDelay)
```
    Sets the delay in milliseconds that existing members will wait before satisfying redundancy after another member crashes. Default value is set to -1 which indicates that redundancy will not be recovered after a failure.
    
    Since:
    
    6.0
  - setStartupRecoveryDelay
```
public PartitionAttributesFactory<K,V> setStartupRecoveryDelay(long startupRecoveryDelay)
```
    Sets the delay in milliseconds that new members will wait before satisfying redundancy. -1 indicates that adding new members will not trigger redundancy recovery. The default (set to 0) is to recover redundancy immediately when a new member is added.
    
    Since:
    
    6.0
  - addPartitionListener
```
public PartitionAttributesFactory<K,V> addPartitionListener(PartitionListener listener)
```
    adds a PartitionListener for the partitioned region.
    
    Parameters:
    listener -
    
    Returns:
    PartitionAttributeFactory
    Since:
    
    6.5
  - setLocalProperties
```
@Deprecated
public PartitionAttributesFactory<K,V> setLocalProperties(Properties localProps)
```
    Deprecated. use setLocalMaxMemory(int) in GemFire 5.1 and later releases
    
    Sets the Properties for the local instance the partitioned Region. Local properties define how the local instance of the partitioned region and any storage it may provide, behaves. There are currently no non-deprecated local properties.
    
    Parameters:
    localProps -
    
    Returns:
    PartitionAttributeFactory.
  - setGlobalProperties
```
@Deprecated
public PartitionAttributesFactory<K,V> setGlobalProperties(Properties globalProps)
```
    Deprecated. use setTotalMaxMemory(long) and setTotalNumBuckets(int) in GemFire 5.1 and later releases
    
    Sets the global Properties for the next PartitionAttributes created. Global properties define how the entire partitioned Region behaves.
    Note that global settings must be the same in all processes using the Region.
    
    Parameters:
    globalProps -
    
    Returns:
    PartitionAttributeFactory.
    See Also:
    GLOBAL_MAX_MEMORY_PROPERTY
  - addFixedPartitionAttributes
```
public PartitionAttributesFactory<K,V> addFixedPartitionAttributes(FixedPartitionAttributes fpa)
```
    FixedPartitionAttributes defined for this partitioned region is added to PR attributes.
    
    Since:
    
    6.6
  - create
```
public PartitionAttributes<K,V> create()
```
    Creates a PartitionAttributes with the current settings.
    
    Returns:
    the newly created PartitionAttributes
    
    Throws:
    
    IllegalStateException - if the current settings violate the compatibility rules

Class PartitionAttributesFactory<K,V>

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

LOCAL_MAX_MEMORY_PROPERTY

LOCAL_MAX_MEMORY_DEFAULT

GLOBAL_MAX_MEMORY_PROPERTY

GLOBAL_MAX_MEMORY_DEFAULT

GLOBAL_MAX_BUCKETS_PROPERTY

GLOBAL_MAX_BUCKETS_DEFAULT

RECOVERY_DELAY_DEFAULT

STARTUP_RECOVERY_DELAY_DEFAULT

Constructor Detail

PartitionAttributesFactory

PartitionAttributesFactory

Method Detail

setRedundantCopies

setLocalMaxMemory

setTotalMaxMemory

setTotalNumBuckets

setPartitionResolver

setColocatedWith

setRecoveryDelay

setStartupRecoveryDelay

addPartitionListener

setLocalProperties

setGlobalProperties

addFixedPartitionAttributes

create