com.thinkaurelius.titan.diskstorage.keycolumnvalue

Interface KeyColumnValueStoreManager

All Superinterfaces:

StoreManager

All Known Implementing Classes:

ExpectedValueCheckingStoreManager, InMemoryStoreManager, OrderedKeyValueStoreManagerAdapter

public interface KeyColumnValueStoreManager
extends StoreManager

KeyColumnValueStoreManager provides the persistence context to the graph database storage backend.

A KeyColumnValueStoreManager provides transaction handles across multiple data stores that are managed by this KeyColumnValueStoreManager.

Author:

Matthias Bröcheler (me@matthiasb.com);

Method Summary

Methods

Modifier and Type	Method and Description
void	mutateMany(Map<String,Map<StaticBuffer,KCVMutation>> mutations, StoreTransaction txh) Executes multiple mutations at once.
KeyColumnValueStore	openDatabase(String name) Opens an ordered database by the given name.

Methods inherited from interface com.thinkaurelius.titan.diskstorage.keycolumnvalue.StoreManager

beginTransaction, clearStorage, close, getFeatures, getLocalKeyPartition, getName

Method Detail

openDatabase

KeyColumnValueStore openDatabase(String name)
                                 throws StorageException

Opens an ordered database by the given name. If the database does not exist, it is created. If it has already been opened, the existing handle is returned.

Parameters:

name - Name of database

Returns:

Database Handle

Throws:

StorageException

mutateMany

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

Executes multiple mutations at once. For each store (identified by a string name) there is a map of (key,mutation) pairs that specifies all the mutations to execute against the particular store for that key. This is an optional operation. Check StoreManager.getFeatures() if it is supported by a particular implementation.

Parameters:

mutations -

txh -

Throws:

StorageException