com.thinkaurelius.titan.diskstorage.cassandra.embedded

Class CassandraEmbeddedStoreManager

java.lang.Object

com.thinkaurelius.titan.diskstorage.common.AbstractStoreManager

com.thinkaurelius.titan.diskstorage.common.DistributedStoreManager

com.thinkaurelius.titan.diskstorage.cassandra.AbstractCassandraStoreManager

com.thinkaurelius.titan.diskstorage.cassandra.embedded.CassandraEmbeddedStoreManager

All Implemented Interfaces:

KeyColumnValueStoreManager, StoreManager

public class CassandraEmbeddedStoreManager
extends AbstractCassandraStoreManager

Nested Class Summary

Nested classes/interfaces inherited from class com.thinkaurelius.titan.diskstorage.cassandra.AbstractCassandraStoreManager

AbstractCassandraStoreManager.Partitioner

Nested classes/interfaces inherited from class com.thinkaurelius.titan.diskstorage.common.DistributedStoreManager

DistributedStoreManager.Deployment, DistributedStoreManager.MaskedTimestamp

Field Summary

Fields

Modifier and Type	Field and Description
static String	CASSANDRA_YAML_DEFAULT The default value for GraphDatabaseConfiguration.STORAGE_CONF_FILE.

Fields inherited from class com.thinkaurelius.titan.diskstorage.cassandra.AbstractCassandraStoreManager

ATOMIC_BATCH_MUTATE, atomicBatch, CASSANDRA_KEYSPACE, CASSANDRA_NS, CASSANDRA_READ_CONSISTENCY, CASSANDRA_WRITE_CONSISTENCY, CF_COMPRESSION, CF_COMPRESSION_BLOCK_SIZE, CF_COMPRESSION_TYPE, compressionChunkSizeKB, compressionClass, compressionEnabled, keySpaceName, PORT_DEFAULT, REPLICATION_FACTOR, REPLICATION_OPTIONS, REPLICATION_STRATEGY, SSL_ENABLED, SSL_NS, SSL_TRUSTSTORE_LOCATION, SSL_TRUSTSTORE_NS, SSL_TRUSTSTORE_PASSWORD, strategyOptions, SYSTEM_KS

Fields inherited from class com.thinkaurelius.titan.diskstorage.common.DistributedStoreManager

connectionTimeoutMS, hostnames, pageSize, password, port, times, username

Fields inherited from class com.thinkaurelius.titan.diskstorage.common.AbstractStoreManager

batchLoading, isReadOnly, storageConfig, transactional

Constructor Summary

Constructors

Constructor and Description
CassandraEmbeddedStoreManager(Configuration config)

Method Summary

Modifier and Type	Method and Description
void	clearStorage()
void	close()
org.apache.cassandra.dht.IPartitioner<? extends org.apache.cassandra.dht.Token<?>>	getCassandraPartitioner()
Map<String,String>	getCompressionOptions(String cf) Returns a map of compression options for the column family cf.
DistributedStoreManager.Deployment	getDeployment()
List<KeyRange>	getLocalKeyPartition()
void	mutateMany(Map<String,Map<StaticBuffer,KCVMutation>> mutations, StoreTransaction txh)
KeyColumnValueStore	openDatabase(String name)
String	toString()

Methods inherited from class com.thinkaurelius.titan.diskstorage.cassandra.AbstractCassandraStoreManager

beginTransaction, getFeatures, getName, getPartitioner

Methods inherited from class com.thinkaurelius.titan.diskstorage.common.DistributedStoreManager

getPageSize, getSingleHostname, getTimestampProvider, hasAuthentication, sleepAfterWrite

Methods inherited from class com.thinkaurelius.titan.diskstorage.common.AbstractStoreManager

getMetaDataSchema, getStorageConfig

Methods inherited from class java.lang.Object

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

Field Detail

CASSANDRA_YAML_DEFAULT

public static final String CASSANDRA_YAML_DEFAULT

The default value for GraphDatabaseConfiguration.STORAGE_CONF_FILE.

See Also:

Constant Field Values

Constructor Detail

CassandraEmbeddedStoreManager

public CassandraEmbeddedStoreManager(Configuration config)
                              throws BackendException

Throws:

BackendException

Method Detail

getDeployment

public DistributedStoreManager.Deployment getDeployment()

Specified by:

getDeployment in class DistributedStoreManager

getCassandraPartitioner

public org.apache.cassandra.dht.IPartitioner<? extends org.apache.cassandra.dht.Token<?>> getCassandraPartitioner()
                                                                                                           throws BackendException

Specified by:

getCassandraPartitioner in class AbstractCassandraStoreManager

Throws:

BackendException

toString

public String toString()

Overrides:

toString in class AbstractCassandraStoreManager

close

public void close()

openDatabase

public KeyColumnValueStore openDatabase(String name)
                                 throws BackendException

Throws:

BackendException

getLocalKeyPartition

public List<KeyRange> getLocalKeyPartition()
                                    throws BackendException

Throws:

BackendException

mutateMany

public void mutateMany(Map<String,Map<StaticBuffer,KCVMutation>> mutations,
                       StoreTransaction txh)
                throws BackendException

Throws:

BackendException

clearStorage

public void clearStorage()
                  throws BackendException

Throws:

BackendException

getCompressionOptions

public Map<String,String> getCompressionOptions(String cf)
                                         throws BackendException

Description copied from class: AbstractCassandraStoreManager

Returns a map of compression options for the column family cf. The contents of the returned map must be identical to the contents of the map returned by CfDef.getCompression_options(), even for implementations of this method that don't use Thrift.

Specified by:

getCompressionOptions in class AbstractCassandraStoreManager

Parameters:

cf - the name of the column family for which to return compression options

Returns:

map of compression option names to compression option values

Throws:

BackendException - if reading from Cassandra fails