org.apache.iotdb.db.metadata.idtable

类 AppendOnlyDiskSchemaManager

java.lang.Object

org.apache.iotdb.db.metadata.idtable.AppendOnlyDiskSchemaManager

所有已实现的接口:

IDiskSchemaManager

public class AppendOnlyDiskSchemaManager
extends Object
implements IDiskSchemaManager

store id table schema in append only file

构造器概要

构造器

构造器和说明
AppendOnlyDiskSchemaManager(File dir)

方法概要

限定符和类型	方法和说明
void	close() close file and free resource
Collection<DiskSchemaEntry>	getAllSchemaEntry() get all disk schema entries from file
void	recover(IDTable idTable) recover id table from log file
long	serialize(DiskSchemaEntry schemaEntry) serialize a disk schema entry

从类继承的方法 java.lang.Object

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

构造器详细资料

AppendOnlyDiskSchemaManager

public AppendOnlyDiskSchemaManager(File dir)

方法详细资料

serialize

public long serialize(DiskSchemaEntry schemaEntry)

从接口复制的说明: IDiskSchemaManager

serialize a disk schema entry

指定者:

serialize 在接口中 IDiskSchemaManager

参数:

schemaEntry - disk schema entry

返回:

disk position of that entry

recover

public void recover(IDTable idTable)

从接口复制的说明: IDiskSchemaManager

recover id table from log file

指定者:

recover 在接口中 IDiskSchemaManager

参数:

idTable - id table need to be recovered

getAllSchemaEntry

public Collection<DiskSchemaEntry> getAllSchemaEntry()
                                              throws IOException

从接口复制的说明: IDiskSchemaManager

get all disk schema entries from file

指定者:

getAllSchemaEntry 在接口中 IDiskSchemaManager

返回:

collection of all disk schema entires

抛出:

IOException

close

public void close()
           throws IOException

从接口复制的说明: IDiskSchemaManager

close file and free resource

指定者:

close 在接口中 IDiskSchemaManager

抛出:

IOException