hydra

Class RegionHelper

java.lang.Object

hydra.RegionHelper

public class RegionHelper
extends Object

Helps clients use RegionDescription. Methods are thread-safe.

Constructor Summary

Constructors

Constructor and Description
RegionHelper()

Method Summary

Modifier and Type	Method and Description
static com.gemstone.gemfire.cache.Region	createRegion(String regionConfig) Creates the region using the given region configuration in the current cache.
static com.gemstone.gemfire.cache.Region	createRegion(String regionName, com.gemstone.gemfire.cache.AttributesFactory factory) Creates the region with the given name in the current cache.
static com.gemstone.gemfire.cache.Region	createRegion(String regionName, com.gemstone.gemfire.cache.RegionAttributes attributes) Creates the region with the given name in the current cache.
static com.gemstone.gemfire.cache.Region	createRegion(String regionName, String regionConfig) Creates the region with the given name in the current cache.
static com.gemstone.gemfire.cache.AttributesFactory	getAttributesFactory(String regionConfig) Returns an attributes factory for the given region configuration from RegionPrms.names, configured using the corresponding RegionDescription.
static com.gemstone.gemfire.cache.AttributesFactory	getAttributesFactory(String regionName, String regionConfig) Returns an attributes factory for the given region name and configuration from RegionPrms.names, configured using the corresponding RegionDescription.
static com.gemstone.gemfire.cache.Region	getRegion(String regionName) Returns the region with the given name in the current cache, or null if no region with that name exists.
static com.gemstone.gemfire.cache.RegionAttributes	getRegionAttributes(com.gemstone.gemfire.cache.AttributesFactory factory) Returns region attributes created using the given attributes factory.
static com.gemstone.gemfire.cache.RegionAttributes	getRegionAttributes(String regionConfig) Returns a region attributes clone for the given region configuration from RegionPrms.names, using a factory configured using the corresponding RegionDescription.
static com.gemstone.gemfire.cache.RegionAttributes	getRegionAttributes(String regionName, String regionConfig) Returns a region attributes clone for the given region name and configuration from RegionPrms.names, using a factory configured using the corresponding RegionDescription.
static RegionDescription	getRegionDescription(String regionConfig) Returns the RegionDescription with the given configuration name from RegionPrms.names.
static String	regionAttributesToString(com.gemstone.gemfire.cache.RegionAttributes attributes) Returns the given region attributes as a string.

Methods inherited from class java.lang.Object

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

Constructor Detail

RegionHelper

public RegionHelper()

Method Detail

createRegion

public static com.gemstone.gemfire.cache.Region createRegion(String regionConfig)

Creates the region using the given region configuration in the current cache. The region is configured using the RegionDescription corresponding to the region configuration from RegionPrms.names. The region name is the corresponding value of RegionPrms.regionName.

Lazily creates the disk store specified by #diskStoreName, using DiskStoreHelper.createDiskStore(String).

Lazily creates the HDFS store specified by #hdfsStoreName, using HDFSStoreHelper.createHDFSStore(String).

Lazily creates the pool specified by RegionPrms.poolName, using PoolHelper.createPool(String).

Throws:

HydraRuntimeException - if an attempt is made to reconfigure an existing region.

createRegion

public static com.gemstone.gemfire.cache.Region createRegion(String regionName,
                                                             String regionConfig)

Creates the region with the given name in the current cache. The region is configured using the RegionDescription corresponding to the given region configuration from RegionPrms.names.

Lazily creates the disk store specified by #diskStoreName, using DiskStoreHelper.createDiskStore(String).

Lazily creates the HDFS store specified by #hdfsStoreName, using HDFSStoreHelper.createHDFSStore(String).

Lazily creates the pool specified by RegionPrms.poolName, using PoolHelper.createPool(String).

Throws:

HydraRuntimeException - if an attempt is made to reconfigure an existing region.

createRegion

public static com.gemstone.gemfire.cache.Region createRegion(String regionName,
                                                             com.gemstone.gemfire.cache.AttributesFactory factory)

Creates the region with the given name in the current cache. The region is configured using the given factory.

Throws:

HydraRuntimeException - if an attempt is made to reconfigure an existing region.

createRegion

public static com.gemstone.gemfire.cache.Region createRegion(String regionName,
                                                             com.gemstone.gemfire.cache.RegionAttributes attributes)

Creates the region with the given name in the current cache. The region is configured using the given region attributes.

Throws:

HydraRuntimeException - if an attempt is made to reconfigure an existing region.

getRegion

public static com.gemstone.gemfire.cache.Region getRegion(String regionName)

Returns the region with the given name in the current cache, or null if no region with that name exists.

getRegionAttributes

public static com.gemstone.gemfire.cache.RegionAttributes getRegionAttributes(String regionName,
                                                                              String regionConfig)

Returns a region attributes clone for the given region name and configuration from RegionPrms.names, using a factory configured using the corresponding RegionDescription.

Makes the specified region name available to the fixed partition mapping algorithm, if any.

getRegionAttributes

public static com.gemstone.gemfire.cache.RegionAttributes getRegionAttributes(String regionConfig)

Returns a region attributes clone for the given region configuration from RegionPrms.names, using a factory configured using the corresponding RegionDescription.

Makes the configured region name available to the fixed partition mapping algorithm, if any.

getRegionAttributes

public static com.gemstone.gemfire.cache.RegionAttributes getRegionAttributes(com.gemstone.gemfire.cache.AttributesFactory factory)

Returns region attributes created using the given attributes factory.

regionAttributesToString

public static String regionAttributesToString(com.gemstone.gemfire.cache.RegionAttributes attributes)

Returns the given region attributes as a string.

getAttributesFactory

public static com.gemstone.gemfire.cache.AttributesFactory getAttributesFactory(String regionName,
                                                                                String regionConfig)

Returns an attributes factory for the given region name and configuration from RegionPrms.names, configured using the corresponding RegionDescription.

Makes the specified region name available to the fixed partition mapping algorithm, if any.

getAttributesFactory

public static com.gemstone.gemfire.cache.AttributesFactory getAttributesFactory(String regionConfig)

Returns an attributes factory for the given region configuration from RegionPrms.names, configured using the corresponding RegionDescription.

Makes the configured region name available to the fixed partition mapping algorithm, if any.

getRegionDescription

public static RegionDescription getRegionDescription(String regionConfig)

Returns the RegionDescription with the given configuration name from RegionPrms.names.