com.github.drinkjava2.jsqlbox.sharding
Interface ShardingTool

All Known Implementing Classes:

ShardingModTool, ShardingRangeTool

public interface ShardingTool

This interface defines some Sharding methods

Since:

1.7.0.3

Author:

Yong Zhu

Method Summary

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

Method Detail

handleShardTable

String[] handleShardTable(SqlBoxContext ctx,
                          TableModel tableModel,
                          Object... shardKey)

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

Parameters:

ctx - Current SqlBoxContext instance

entityOrClass - The entity or class need do sharding

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

SqlBoxContext[] handleShardDatabase(SqlBoxContext ctx,
                                    TableModel tableModel,
                                    Object... shardKey)

Dealing a ShardTable SqlItem, return real master SqlBoxContexts array

Parameters:

ctx - Current SqlBoxContext instance

entityOrClass - The entity or class need do sharding

shardKey - The shard key or keys

Returns:

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