io.picodata.jdbc.core.cluster.tier

Class TierInfoCache

java.lang.Object

io.picodata.jdbc.core.cluster.tier.TierInfoCache

All Implemented Interfaces:

TierInfoProvider

public class TierInfoCache
extends Object
implements TierInfoProvider

Cache for Picodata tier info objects.

Constructor Summary

Constructors

Constructor and Description
TierInfoCache(TierInfoFetcher tierInfoFetcher) Constructor.

Method Summary

Modifier and Type	Method and Description
Set<String>	getAllTierNames() Returns set of all tier names.
TierInfo	getDefaultTierInfo() Returns default tier information.
TierInfo	getTierInfo(String tierName) Returns tier information for the specified tier name.
TierInfo	getTierInfoForTable(TableInfo tableInfo) Returns tier information for the specified table.

Methods inherited from class java.lang.Object

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

Constructor Detail

TierInfoCache

public TierInfoCache(TierInfoFetcher tierInfoFetcher)

Constructor.

Parameters:

tierInfoFetcher - fetches tier info from Picodata cluster for cache initialization

Method Detail

getTierInfo

public TierInfo getTierInfo(String tierName)

Returns tier information for the specified tier name.

Specified by:

getTierInfo in interface TierInfoProvider

Parameters:

tierName - the name of the tier to retrieve

Returns:

the tier information, or null if no tier with the specified name exists

getTierInfoForTable

public TierInfo getTierInfoForTable(TableInfo tableInfo)
                             throws SQLException

Description copied from interface: TierInfoProvider

Returns tier information for the specified table.

Specified by:

getTierInfoForTable in interface TierInfoProvider

Parameters:

tableInfo - the table metadata

Returns:

the tier information, or null if no tier exists for the specified table

Throws:

SQLException - if requested table is globally distributed

getDefaultTierInfo

public TierInfo getDefaultTierInfo()

Returns default tier information.

Specified by:

getDefaultTierInfo in interface TierInfoProvider

Returns:

the default tier information, or null if default tier doesn't exist

getAllTierNames

public Set<String> getAllTierNames()

Returns set of all tier names.

Specified by:

getAllTierNames in interface TierInfoProvider

Returns:

an unmodifiable set of tier names