Package org.apache.drill.metastore.rdbms.components.tables

Class TablesTransformer

java.lang.Object

org.apache.drill.metastore.rdbms.transform.AbstractTransformer<TableMetadataUnit>

org.apache.drill.metastore.rdbms.components.tables.TablesTransformer

All Implemented Interfaces:

Transformer<TableMetadataUnit>

public class TablesTransformer
extends AbstractTransformer<TableMetadataUnit>

Transformer implementation for RDBMS Metastore tables component.

Constructor Summary

Constructors

Constructor	Description
TablesTransformer()

Method Summary

Modifier and Type	Method	Description
static TablesTransformer	get()
MetadataMapper<TableMetadataUnit,? extends org.jooq.Record>	toMapper(MetadataType metadataType)	Returns metadata mappers corresponding to the given metadata type.
Set<MetadataMapper<TableMetadataUnit,? extends org.jooq.Record>>	toMappers(Set<MetadataType> metadataTypes)	Returns set of metadata mappers corresponding to the given metadata types.
List<RdbmsOperation.Overwrite>	toOverwrite(List<TableMetadataUnit> units)	Converts given list of Metastore component metadata units into RDBMS Metastore overwrite operations.

Methods inherited from class org.apache.drill.metastore.rdbms.transform.AbstractTransformer

toDelete, toDeleteAll, toOverwrite

Methods inherited from class java.lang.Object

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

Constructor Details

TablesTransformer

public TablesTransformer()

Method Details

get

public static TablesTransformer get()

toMappers

public Set<MetadataMapper<TableMetadataUnit,? extends org.jooq.Record>> toMappers(Set<MetadataType> metadataTypes)

Description copied from interface: Transformer

Returns set of metadata mappers corresponding to the given metadata types.

Parameters:

metadataTypes - set of metadata types

Returns:

set of metadata mappers

toMapper

public MetadataMapper<TableMetadataUnit,? extends org.jooq.Record> toMapper(MetadataType metadataType)

Description copied from interface: Transformer

Returns metadata mappers corresponding to the given metadata type.

Parameters:

metadataType - metadata type

Returns:

metadata mapper

toOverwrite

public List<RdbmsOperation.Overwrite> toOverwrite(List<TableMetadataUnit> units)

Description copied from interface: Transformer

Converts given list of Metastore component metadata units into RDBMS Metastore overwrite operations.

Parameters:

units - Metastore metadata units

Returns:

list of RDBMS Metastore overwrite operations