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 ShardTable SqlItem, return real master SqlBoxContexts array
String[]	handleShardTable(SqlBoxContext ctx, TableModel model, Object... shardkey) Dealing a SqlItem(SqlOption.SHARD_TABLE, entityOrClass, shardKey1, optionalShardKey2) item, return real table names array

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 SqlItem(SqlOption.SHARD_TABLE, entityOrClass, shardKey1, optionalShardKey2) item, return real table names array

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 ShardTable SqlItem, return real master SqlBoxContexts array

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