org.apache.hadoop.hive.metastore

Class HiveAlterHandler

java.lang.Object

org.apache.hadoop.hive.metastore.HiveAlterHandler

All Implemented Interfaces:

org.apache.hadoop.conf.Configurable, AlterHandler

public class HiveAlterHandler
extends Object
implements AlterHandler

Hive specific implementation of alter

Field Summary

Fields

Modifier and Type	Field and Description
protected org.apache.hadoop.conf.Configuration	conf

Constructor Summary

Constructors

Constructor and Description
HiveAlterHandler()

Method Summary

Modifier and Type	Method and Description
Partition	alterPartition(RawStore msdb, Warehouse wh, String dbname, String name, List<String> part_vals, Partition new_part, EnvironmentContext environmentContext)
Partition	alterPartition(RawStore msdb, Warehouse wh, String catName, String dbname, String name, List<String> part_vals, Partition new_part, EnvironmentContext environmentContext, IHMSHandler handler, String validWriteIds) handles alter partition
List<Partition>	alterPartitions(RawStore msdb, Warehouse wh, String dbname, String name, List<Partition> new_parts, EnvironmentContext environmentContext) Deprecated.
List<Partition>	alterPartitions(RawStore msdb, Warehouse wh, String catName, String dbname, String name, List<Partition> new_parts, EnvironmentContext environmentContext, String writeIdList, long writeId, IHMSHandler handler) handles alter partitions
void	alterTable(RawStore msdb, Warehouse wh, String catName, String dbname, String name, Table newt, EnvironmentContext environmentContext, IHMSHandler handler, String writeIdList) handles alter table, the changes could be cascaded to partitions if applicable
static List<ColumnStatistics>	deleteTableColumnStats(RawStore msdb, Table oldTable, Table newTable, List<ColumnStatistics> multiColStats)
static List<ColumnStatisticsObj>	filterColumnStatsForTableColumns(List<FieldSchema> columns, ColumnStatistics colStats)
static List<ColumnStatistics>	getColumnStats(RawStore msdb, Table oldTable)
org.apache.hadoop.conf.Configuration	getConf()
void	setConf(org.apache.hadoop.conf.Configuration conf)
static List<ColumnStatistics>	updateOrGetPartitionColumnStats(RawStore msdb, String catName, String dbname, String tblname, List<String> partVals, List<FieldSchema> oldCols, Table table, Partition part, List<FieldSchema> newCols, List<String> deletedCols)
void	updateTableColumnStats(RawStore msdb, Table newTable, String validWriteIds, List<ColumnStatistics> columnStatistics)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hadoop.hive.metastore.AlterHandler

alterTable

Field Detail

conf

protected org.apache.hadoop.conf.Configuration conf

Constructor Detail

HiveAlterHandler

public HiveAlterHandler()

Method Detail

getConf

public org.apache.hadoop.conf.Configuration getConf()

Specified by:

getConf in interface org.apache.hadoop.conf.Configurable

setConf

public void setConf(org.apache.hadoop.conf.Configuration conf)

Specified by:

setConf in interface org.apache.hadoop.conf.Configurable

alterTable

public void alterTable(RawStore msdb,
                       Warehouse wh,
                       String catName,
                       String dbname,
                       String name,
                       Table newt,
                       EnvironmentContext environmentContext,
                       IHMSHandler handler,
                       String writeIdList)
                throws InvalidOperationException,
                       MetaException

Description copied from interface: AlterHandler

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

Specified by:

alterTable in interface AlterHandler

Parameters:

msdb - object to get metadata

wh - Hive Warehouse where table data is stored

catName - catalog of the table being altered

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.

newt - new table object

handler - HMSHandle object (required to log event notification)

Throws:

InvalidOperationException - thrown if the newTable object is invalid

MetaException - thrown if there is any other error

alterPartition

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

Specified by:

alterPartition in interface AlterHandler

Parameters:

msdb - object to get metadata

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

NoSuchObjectException

alterPartition

public Partition alterPartition(RawStore msdb,
                                Warehouse wh,
                                String catName,
                                String dbname,
                                String name,
                                List<String> part_vals,
                                Partition new_part,
                                EnvironmentContext environmentContext,
                                IHMSHandler handler,
                                String validWriteIds)
                         throws InvalidOperationException,
                                InvalidObjectException,
                                AlreadyExistsException,
                                MetaException,
                                NoSuchObjectException

Description copied from interface: AlterHandler

handles alter partition

Specified by:

alterPartition in interface AlterHandler

Parameters:

msdb - object to get metadata

wh - physical warehouse class

catName - catalog name

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

handler - HMSHandle object (required to log event notification)

Returns:

the altered partition

Throws:

InvalidOperationException

InvalidObjectException

AlreadyExistsException

MetaException

NoSuchObjectException

alterPartitions

@Deprecated
public List<Partition> alterPartitions(RawStore msdb,
                                                   Warehouse wh,
                                                   String dbname,
                                                   String name,
                                                   List<Partition> new_parts,
                                                   EnvironmentContext environmentContext)
                                            throws InvalidOperationException,
                                                   InvalidObjectException,
                                                   AlreadyExistsException,
                                                   MetaException

Deprecated.

Specified by:

alterPartitions in interface AlterHandler

Parameters:

msdb - object to get metadata

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

alterPartitions

public List<Partition> alterPartitions(RawStore msdb,
                                       Warehouse wh,
                                       String catName,
                                       String dbname,
                                       String name,
                                       List<Partition> new_parts,
                                       EnvironmentContext environmentContext,
                                       String writeIdList,
                                       long writeId,
                                       IHMSHandler handler)
                                throws InvalidOperationException,
                                       InvalidObjectException,
                                       AlreadyExistsException,
                                       MetaException

Description copied from interface: AlterHandler

handles alter partitions

Specified by:

alterPartitions in interface AlterHandler

Parameters:

msdb - object to get metadata

dbname - database of the partition being altered

name - table of the partition being altered

new_parts - new partition list

handler - HMSHandle object (required to log event notification)

Returns:

the altered partition list

Throws:

InvalidOperationException

InvalidObjectException

AlreadyExistsException

MetaException

getColumnStats

public static List<ColumnStatistics> getColumnStats(RawStore msdb,
                                                    Table oldTable)
                                             throws NoSuchObjectException,
                                                    MetaException

Throws:

NoSuchObjectException

MetaException

deleteTableColumnStats

public static List<ColumnStatistics> deleteTableColumnStats(RawStore msdb,
                                                            Table oldTable,
                                                            Table newTable,
                                                            List<ColumnStatistics> multiColStats)
                                                     throws InvalidObjectException,
                                                            MetaException

Throws:

InvalidObjectException

MetaException

updateTableColumnStats

public void updateTableColumnStats(RawStore msdb,
                                   Table newTable,
                                   String validWriteIds,
                                   List<ColumnStatistics> columnStatistics)
                            throws MetaException,
                                   InvalidObjectException

Throws:

MetaException

InvalidObjectException

filterColumnStatsForTableColumns

public static List<ColumnStatisticsObj> filterColumnStatsForTableColumns(List<FieldSchema> columns,
                                                                         ColumnStatistics colStats)

updateOrGetPartitionColumnStats

public static List<ColumnStatistics> updateOrGetPartitionColumnStats(RawStore msdb,
                                                                     String catName,
                                                                     String dbname,
                                                                     String tblname,
                                                                     List<String> partVals,
                                                                     List<FieldSchema> oldCols,
                                                                     Table table,
                                                                     Partition part,
                                                                     List<FieldSchema> newCols,
                                                                     List<String> deletedCols)
                                                              throws MetaException,
                                                                     InvalidObjectException

Throws:

MetaException

InvalidObjectException