com.aliyun.odps

Class Shard

java.lang.Object

com.aliyun.odps.Shard

public final class Shard
extends Object

Created by yinyue on 15-3-17.

Method Summary

Methods

Modifier and Type	Method and Description
ArrayList<String>	getDistributeColumnNames() 返回创建shard表时指定的cluster by列名
long	getHubLifecycle() Deprecated.
long	getShardNum() 返回shard数量
ArrayList<String>	getSortColumnNames() 返回创建shard表时指定的sorted by列名
static Shard	parseShard(org.codehaus.jackson.JsonNode tree) Deprecated. use another method parseShard(JSONObject tree)
static Shard	parseShard(com.alibaba.fastjson.JSONObject tree)

Methods inherited from class java.lang.Object

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

Method Detail

parseShard

public static Shard parseShard(com.alibaba.fastjson.JSONObject tree)

parseShard

public static Shard parseShard(org.codehaus.jackson.JsonNode tree)

Deprecated. use another method parseShard(JSONObject tree)

getHubLifecycle

@Deprecated
public long getHubLifecycle()

Deprecated.

返回表的HubLifecycle 单位：天

Returns:

lifecycle， 如果表不为hub表返回 -1

getShardNum

public long getShardNum()

返回shard数量

Returns:

shard数

getDistributeColumnNames

public ArrayList<String> getDistributeColumnNames()

返回创建shard表时指定的cluster by列名

Returns:

列名数组, 不存在则返回空数组

getSortColumnNames

public ArrayList<String> getSortColumnNames()

返回创建shard表时指定的sorted by列名

Returns:

列名数组，不存在则返回空数组