org.janusgraph.diskstorage.configuration.backend

Class KCVSConfiguration

java.lang.Object

org.janusgraph.diskstorage.configuration.backend.KCVSConfiguration

All Implemented Interfaces:

ConcurrentWriteConfiguration, ReadConfiguration, WriteConfiguration

public class KCVSConfiguration
extends Object
implements ConcurrentWriteConfiguration

Author:

Matthias Broecheler ([email protected])

Field Summary

Fields inherited from interface org.janusgraph.diskstorage.configuration.ReadConfiguration

EMPTY

Constructor Summary

Constructors

Constructor and Description
KCVSConfiguration(BackendOperation.TransactionalProvider txProvider, Configuration config, KeyColumnValueStore store, String identifier)

Method Summary

Modifier and Type	Method and Description
ReadConfiguration	asReadConfiguration()
void	close()
WriteConfiguration	copy()
<O> O	get(String key, Class<O> dataType) Reads the configuration property for this StoreManager
Iterable<String>	getKeys(String prefix)
void	remove(String key)
<O> void	set(String key, O value) Sets a configuration property for this StoreManager.
<O> void	set(String key, O value, O expectedValue)
<O> void	set(String key, O value, O expectedValue, boolean checkExpectedValue)
void	setMaxOperationWaitTime(Duration waitTime)

Methods inherited from class java.lang.Object

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

Constructor Detail

KCVSConfiguration

public KCVSConfiguration(BackendOperation.TransactionalProvider txProvider,
                         Configuration config,
                         KeyColumnValueStore store,
                         String identifier)
                  throws BackendException

Throws:

BackendException

Method Detail

setMaxOperationWaitTime

public void setMaxOperationWaitTime(Duration waitTime)

get

public <O> O get(String key,
                 Class<O> dataType)

Reads the configuration property for this StoreManager

Specified by:

get in interface ReadConfiguration

Parameters:

key - Key identifying the configuration property

Returns:

Value stored for the key or null if the configuration property has not (yet) been defined.

set

public <O> void set(String key,
                    O value,
                    O expectedValue)

Specified by:

set in interface ConcurrentWriteConfiguration

set

public <O> void set(String key,
                    O value)

Sets a configuration property for this StoreManager.

Specified by:

set in interface WriteConfiguration

Parameters:

key - Key identifying the configuration property

value - Value to be stored for the key

set

public <O> void set(String key,
                    O value,
                    O expectedValue,
                    boolean checkExpectedValue)

remove

public void remove(String key)

Specified by:

remove in interface WriteConfiguration

copy

public WriteConfiguration copy()

Specified by:

copy in interface WriteConfiguration

asReadConfiguration

public ReadConfiguration asReadConfiguration()

getKeys

public Iterable<String> getKeys(String prefix)

Specified by:

getKeys in interface ReadConfiguration

close

public void close()

Specified by:

close in interface ReadConfiguration