com.github.drinkjava2.jsqlbox.sharding
Class ShardingModTool

java.lang.Object
  com.github.drinkjava2.jsqlbox.sharding.ShardingModTool

All Implemented Interfaces:

ShardingTool

public class ShardingModTool
extends Object
implements ShardingTool

An simple implementation of ShardingTool to deal "MOD" type sharding strategy

Since:

1.7.0.3

Author:

Yong Zhu

Constructor Summary

ShardingModTool()

Method Summary

SqlBoxContext[]	handleShardDatabase(SqlBoxContext ctx, TableModel model, Object... shardkey) Dealing a shardKey array based on current SqlBoxContext and TableModel, return SqlBoxContext array, in this jSqlBox version, only support return 1 SqlBoxContext
String[]	handleShardTable(SqlBoxContext ctx, TableModel model, Object... shardkey) Dealing a shardKey array based on current SqlBoxContext and TableModel, return table name array, in this jSqlBox version, only support return 1 table name

Methods inherited from class java.lang.Object

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

Constructor Detail

ShardingModTool

public ShardingModTool()

Method Detail

handleShardTable

public String[] handleShardTable(SqlBoxContext ctx,
                                 TableModel model,
                                 Object... shardkey)

Description copied from interface: ShardingTool

Dealing a shardKey array based on current SqlBoxContext and TableModel, return table name array, in this jSqlBox version, only support return 1 table name

Specified by:

handleShardTable in interface ShardingTool

Parameters:

ctx - Current SqlBoxContext instance

shardkey - The shard key or keys

Returns:

A String[] stored table names or null if the sharding strategy is not fit for current implementation

handleShardDatabase

public SqlBoxContext[] handleShardDatabase(SqlBoxContext ctx,
                                           TableModel model,
                                           Object... shardkey)

Description copied from interface: ShardingTool

Dealing a shardKey array based on current SqlBoxContext and TableModel, return SqlBoxContext array, in this jSqlBox version, only support return 1 SqlBoxContext

Specified by:

handleShardDatabase in interface ShardingTool

Parameters:

ctx - Current SqlBoxContext instance

shardkey - The shard key or keys

Returns:

A SqlBoxContext[] stored master SqlBoxContexts or null if the sharding strategy is not fit for current implementation