org.apache.iotdb.db.writelog.manager

类 MultiFileLogNodeManager

java.lang.Object

org.apache.iotdb.db.writelog.manager.MultiFileLogNodeManager

所有已实现的接口:

IService, WriteLogNodeManager

public class MultiFileLogNodeManager
extends Object
implements WriteLogNodeManager, IService

MultiFileLogNodeManager manages all ExclusiveWriteLogNodes, each manages WALs of a TsFile (either seq or unseq).

方法概要

限定符和类型	方法和说明
void	close() Close all nodes.
void	closeNode(String identifier)
void	deleteNode(String identifier, Consumer<ByteBuffer[]> consumer) Delete a log node.
ServiceType	getID() Get the name of the the service.
static MultiFileLogNodeManager	getInstance()
WriteLogNode	getNode(String identifier, Supplier<ByteBuffer[]> supplier) Get a WriteLogNode by a identifier like "{storageGroupName}-{BufferWrite/Overflow}-{ nameOfTsFile}".
void	start() Start current service.
void	stop() Stop current service.

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.apache.iotdb.db.service.IService

shutdown, waitAndStop

方法详细资料

getInstance

public static MultiFileLogNodeManager getInstance()

getNode

public WriteLogNode getNode(String identifier,
                            Supplier<ByteBuffer[]> supplier)

从接口复制的说明: WriteLogNodeManager

Get a WriteLogNode by a identifier like "{storageGroupName}-{BufferWrite/Overflow}-{ nameOfTsFile}". The WriteLogNode will be automatically created if not exist.

指定者:

getNode 在接口中 WriteLogNodeManager

参数:

identifier - -identifier, the format: "{storageGroupName}-{BufferWrite/Overflow}-{ nameOfTsFile}"

deleteNode

public void deleteNode(String identifier,
                       Consumer<ByteBuffer[]> consumer)
                throws IOException

从接口复制的说明: WriteLogNodeManager

Delete a log node. If the log node does not exist, this will be an empty operation.

指定者:

deleteNode 在接口中 WriteLogNodeManager

参数:

identifier - -identifier

抛出:

IOException

closeNode

public void closeNode(String identifier)
               throws IOException

抛出:

IOException

close

public void close()

从接口复制的说明: WriteLogNodeManager

Close all nodes.

指定者:

close 在接口中 WriteLogNodeManager

start

public void start()
           throws StartupException

从接口复制的说明: IService

Start current service.

指定者:

start 在接口中 IService

抛出:

StartupException

stop

public void stop()

从接口复制的说明: IService

Stop current service. If current service uses thread or thread pool, current service should guarantee to putBack thread or thread pool.

指定者:

stop 在接口中 IService

getID

public ServiceType getID()

从接口复制的说明: IService

Get the name of the the service.

指定者:

getID 在接口中 IService

返回:

current service name