org.apache.hadoop.hive.metastore

Interface AlterHandler

All Superinterfaces:

org.apache.hadoop.conf.Configurable

All Known Implementing Classes:

HiveAlterHandler

public interface AlterHandler
extends org.apache.hadoop.conf.Configurable

Interface for Alter Table and Alter Partition code

Method Summary

Methods

Modifier and Type	Method and Description
Partition	alterPartition(RawStore msdb, Warehouse wh, String dbname, String name, List<String> part_vals, Partition new_part) handles alter partition
List<Partition>	alterPartitions(RawStore msdb, Warehouse wh, String dbname, String name, List<Partition> new_part) handles alter partitions
void	alterTable(RawStore msdb, Warehouse wh, String dbname, String name, Table newTable) handles alter table
void	alterTable(RawStore msdb, Warehouse wh, String dbname, String name, Table newTable, boolean cascade) handles alter table, the changes could be cascaded to partitions if applicable

Methods inherited from interface org.apache.hadoop.conf.Configurable

getConf, setConf

Method Detail

alterTable

void alterTable(RawStore msdb,
              Warehouse wh,
              String dbname,
              String name,
              Table newTable)
                throws InvalidOperationException,
                       MetaException

handles alter table

Parameters:

msdb - object to get metadata

wh - TODO

dbname - database of the table being altered

name - original name of the table being altered. same as newTable.tableName if alter op is not a rename.

newTable - new table object

Throws:

InvalidOperationException - thrown if the newTable object is invalid

MetaException - thrown if there is any other error

alterTable

void alterTable(RawStore msdb,
              Warehouse wh,
              String dbname,
              String name,
              Table newTable,
              boolean cascade)
                throws InvalidOperationException,
                       MetaException

handles alter table, the changes could be cascaded to partitions if applicable

Parameters:

msdb - object to get metadata

wh - Hive Warehouse where table data is stored

dbname - database of the table being altered

name - original name of the table being altered. same as newTable.tableName if alter op is not a rename.

newTable - new table object

cascade - if the changes will be cascaded to its partitions if applicable

Throws:

InvalidOperationException - thrown if the newTable object is invalid

MetaException - thrown if there is any other error

alterPartition

Partition alterPartition(RawStore msdb,
                       Warehouse wh,
                       String dbname,
                       String name,
                       List<String> part_vals,
                       Partition new_part)
                         throws InvalidOperationException,
                                InvalidObjectException,
                                AlreadyExistsException,
                                MetaException

handles alter partition

Parameters:

msdb - object to get metadata

wh -

dbname - database of the partition being altered

name - table of the partition being altered

part_vals - original values of the partition being altered

new_part - new partition object

Returns:

the altered partition

Throws:

InvalidOperationException

InvalidObjectException

AlreadyExistsException

MetaException

alterPartitions

List<Partition> alterPartitions(RawStore msdb,
                              Warehouse wh,
                              String dbname,
                              String name,
                              List<Partition> new_part)
                                throws InvalidOperationException,
                                       InvalidObjectException,
                                       AlreadyExistsException,
                                       MetaException

handles alter partitions

Parameters:

msdb - object to get metadata

wh -

dbname - database of the partition being altered

name - table of the partition being altered

new_parts - new partition list

Returns:

the altered partition list

Throws:

InvalidOperationException

InvalidObjectException

AlreadyExistsException

MetaException