Package org.apache.hadoop.hbase.master

Class TableStateManager

java.lang.Object

org.apache.hadoop.hbase.master.TableStateManager

@Private
public class TableStateManager
extends Object

This is a helper class used to manage table states. This class uses hbase:meta as its store for table state so hbase:meta must be online before accessing its methods.

Field Summary

Fields

Modifier and Type	Field	Description
private static final org.slf4j.Logger	LOG
private final MasterServices	master
private final ConcurrentMap<TableName,TableState.State>	tableName2State
private final IdReadWriteLock<TableName>	tnLock

Constructor Summary

Constructors

Constructor	Description
TableStateManager(MasterServices master)

Method Summary

Modifier and Type	Method	Description
(package private) Set<TableName>	getTablesInStates(TableState.State... states)	Return all tables in given states.
TableState	getTableState(TableName tableName)
boolean	isTablePresent(TableName tableName)
boolean	isTableState(TableName tableName, TableState.State... states)
private TableState	readMetaState(TableName tableName)
void	setDeletedTable(TableName tableName)
void	setTableState(TableName tableName, TableState.State newState)	Set table state to provided.
private void	updateMetaState(TableName tableName, TableState.State newState)

Methods inherited from class java.lang.Object

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

Field Details

LOG

private static final org.slf4j.Logger LOG

tnLock

private final IdReadWriteLock<TableName> tnLock

master

private final MasterServices master

tableName2State

private final ConcurrentMap<TableName,TableState.State> tableName2State

Constructor Details

TableStateManager

TableStateManager(MasterServices master)

Method Details

setTableState

public void setTableState(TableName tableName,
 TableState.State newState)
                   throws IOException

Set table state to provided. Caller should lock table on write.

Parameters:

tableName - table to change state for

newState - new state

Throws:

IOException

isTableState

public boolean isTableState(TableName tableName,
 TableState.State... states)

setDeletedTable

public void setDeletedTable(TableName tableName)
                     throws IOException

Throws:

IOException

isTablePresent

public boolean isTablePresent(TableName tableName)
                       throws IOException

Throws:

IOException

getTablesInStates

Set<TableName> getTablesInStates(TableState.State... states)
                          throws IOException

Return all tables in given states.

Parameters:

states - filter by states

Returns:

tables in given states

Throws:

IOException

getTableState

@NonNull
public TableState getTableState(TableName tableName)
                         throws IOException

Throws:

IOException

updateMetaState

private void updateMetaState(TableName tableName,
 TableState.State newState)
                      throws IOException

Throws:

IOException

readMetaState

@Nullable
private TableState readMetaState(TableName tableName)
                          throws IOException

Throws:

IOException