org.pinus4j.cluster.router.impl

Class AbstractClusterRouter

java.lang.Object

org.pinus4j.cluster.router.impl.AbstractClusterRouter

All Implemented Interfaces:

IClusterRouter

Direct Known Subclasses:

SimpleHashClusterRouter

public abstract class AbstractClusterRouter
extends Object
implements IClusterRouter

抽象的数据库集群路由实现. 持有数据库的集群信息，子类专注于实现路由算法.

Author:

duanbn

Field Summary

Fields

Modifier and Type	Field and Description
private IDBCluster	dbCluster db cluster.
private HashAlgoEnum	hashAlgo hash 算法
private ITableCluster	tableCluster 数据表集群.

Constructor Summary

Constructors

Constructor and Description
AbstractClusterRouter()

Method Summary

Modifier and Type	Method and Description
protected abstract DBInfo	doSelect(List<DBInfo> dbInfos, IShardingKey<?> value) select database instance.
IDBCluster	getDBCluster() get db cluster.
HashAlgoEnum	getHashAlgo() 获取hash算法
protected long	getShardingValue(IShardingKey<?> value) 获取shardingvalue的值，如果是String则转成long
ITableCluster	getTableCluster() 获取数据表集群.
RouteInfo	select(EnumDBMasterSlave clusterType, String tableName, IShardingKey<?> value) 选择需要操作的数据库表.
void	setDBCluster(IDBCluster dbCluster) set db cluster.
void	setHashAlgo(HashAlgoEnum algoEnum) 设置hash算法
void	setTableCluster(ITableCluster tableCluster) 设置数据表集群.

Methods inherited from class java.lang.Object

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

Field Detail

hashAlgo

private HashAlgoEnum hashAlgo

hash 算法

dbCluster

private IDBCluster dbCluster

db cluster.

tableCluster

private ITableCluster tableCluster

数据表集群.

Constructor Detail

AbstractClusterRouter

public AbstractClusterRouter()

Method Detail

setHashAlgo

public void setHashAlgo(HashAlgoEnum algoEnum)

Description copied from interface: IClusterRouter

设置hash算法

Specified by:

setHashAlgo in interface IClusterRouter

getHashAlgo

public HashAlgoEnum getHashAlgo()

Description copied from interface: IClusterRouter

获取hash算法

Specified by:

getHashAlgo in interface IClusterRouter

Returns:

setDBCluster

public void setDBCluster(IDBCluster dbCluster)

Description copied from interface: IClusterRouter

set db cluster.

Specified by:

setDBCluster in interface IClusterRouter

Parameters:

dbCluster - cluster info.

getDBCluster

public IDBCluster getDBCluster()

Description copied from interface: IClusterRouter

get db cluster.

Specified by:

getDBCluster in interface IClusterRouter

setTableCluster

public void setTableCluster(ITableCluster tableCluster)

Description copied from interface: IClusterRouter

设置数据表集群.

Specified by:

setTableCluster in interface IClusterRouter

getTableCluster

public ITableCluster getTableCluster()

Description copied from interface: IClusterRouter

获取数据表集群.

Specified by:

getTableCluster in interface IClusterRouter

Returns:

数据表集群信息

select

public RouteInfo select(EnumDBMasterSlave clusterType,
                        String tableName,
                        IShardingKey<?> value)
                 throws DBRouteException

Description copied from interface: IClusterRouter

选择需要操作的数据库表.

Specified by:

select in interface IClusterRouter

Parameters:

clusterType - 主从库类型.

tableName - 表名.

value - 分库分表因子.

Returns:

命中的分库分表信息.

Throws:

DBRouteException - 路由操作失败

getShardingValue

protected long getShardingValue(IShardingKey<?> value)

获取shardingvalue的值，如果是String则转成long

Parameters:

shardingValue -

mod -

Returns:

doSelect

protected abstract DBInfo doSelect(List<DBInfo> dbInfos,
                                   IShardingKey<?> value)
                            throws DBRouteException

select database instance.

Parameters:

dbInfos - database cluster info.

value - sharding value.

Returns:

index of database info list.

Throws:

DBRouteException