org.apache.hadoop.hive.metastore

Class MetastoreDefaultTransformer

java.lang.Object

org.apache.hadoop.hive.metastore.MetastoreDefaultTransformer

All Implemented Interfaces:

IMetaStoreMetadataTransformer

public class MetastoreDefaultTransformer
extends Object
implements IMetaStoreMetadataTransformer

Field Summary

Fields

Modifier and Type	Field and Description
static org.slf4j.Logger	LOG

Constructor Summary

Constructors

Constructor and Description
MetastoreDefaultTransformer(IHMSHandler handler)

Method Summary

Modifier and Type	Method and Description
Map<Table,List<String>>	transform(List<Table> objects, List<String> processorCapabilities, String processorId)
Table	transformAlterTable(Table oldTable, Table newTable, List<String> processorCapabilities, String processorId)
Table	transformCreateTable(Table table, List<String> processorCapabilities, String processorId)
Database	transformDatabase(Database db, List<String> processorCapabilities, String processorId) Alter location of the database depending on whether or not the processor has ACID capabilities.
List<Partition>	transformPartitions(List<Partition> objects, Table table, List<String> processorCapabilities, String processorId)

Methods inherited from class java.lang.Object

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

Field Detail

LOG

public static final org.slf4j.Logger LOG

Constructor Detail

MetastoreDefaultTransformer

public MetastoreDefaultTransformer(IHMSHandler handler)
                            throws HiveMetaException

Throws:

HiveMetaException

Method Detail

transform

public Map<Table,List<String>> transform(List<Table> objects,
                                         List<String> processorCapabilities,
                                         String processorId)
                                  throws MetaException

Specified by:

transform in interface IMetaStoreMetadataTransformer

Parameters:

objects - A list of tables to be transformed.

processorCapabilities - A array of String capabilities received from the data processor

processorId - String ID used for logging purpose.

Returns:

Map A Map of transformed objects keyed by Table and value is list of required capabilities

Throws:

MetaException

transformPartitions

public List<Partition> transformPartitions(List<Partition> objects,
                                           Table table,
                                           List<String> processorCapabilities,
                                           String processorId)
                                    throws MetaException

Specified by:

transformPartitions in interface IMetaStoreMetadataTransformer

Parameters:

objects - A list of Partition objects to be transformed

processorCapabilities - A array of String capabilities received from the data processor

processorId - String ID used for logging purpose.

Returns:

Map A Map of transformed objects keyed by Partition and value is list of required capabilities

Throws:

MetaException

transformCreateTable

public Table transformCreateTable(Table table,
                                  List<String> processorCapabilities,
                                  String processorId)
                           throws MetaException

Specified by:

transformCreateTable in interface IMetaStoreMetadataTransformer

Parameters:

table - A table object to be transformed prior to the creation of the table

processorCapabilities - A array of String capabilities received from the data processor

processorId - String ID used for logging purpose.

Returns:

Table An altered Table based on the processor capabilities

Throws:

MetaException

transformAlterTable

public Table transformAlterTable(Table oldTable,
                                 Table newTable,
                                 List<String> processorCapabilities,
                                 String processorId)
                          throws MetaException

Specified by:

transformAlterTable in interface IMetaStoreMetadataTransformer

Parameters:

oldTable - A table object to be transformed prior to the alteration of a table

processorCapabilities - A array of String capabilities received from the data processor

processorId - String ID used for logging purpose.

Returns:

Table An altered Table based on the processor capabilities

Throws:

MetaException

transformDatabase

public Database transformDatabase(Database db,
                                  List<String> processorCapabilities,
                                  String processorId)
                           throws MetaException

Alter location of the database depending on whether or not the processor has ACID capabilities.

Specified by:

transformDatabase in interface IMetaStoreMetadataTransformer

Parameters:

db - A database object to be transformed, mainly db location

processorCapabilities - A array of String capabilities received from the data processor

processorId - String ID used for logging purpose.

Returns:

Database An altered Database based on the processor capabilities

Throws:

MetaException