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

Class RdbmsTables

java.lang.Object

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

All Implemented Interfaces:

Tables, Operations<TableMetadataUnit>, RdbmsMetastoreContext<TableMetadataUnit>

public class RdbmsTables
extends Object
implements Tables, RdbmsMetastoreContext<TableMetadataUnit>

Metastore Tables component which stores tables metadata in the corresponding RDBMS tables: TABLES, SEGMENTS, FILES, ROW_GROUPS, PARTITIONS. Provides methods to read and modify tables metadata.

Constructor Summary

Constructors

Constructor and Description
RdbmsTables(QueryExecutorProvider executorProvider)

Method Summary

Modifier and Type	Method and Description
RdbmsMetastoreContext<TableMetadataUnit>	context()
QueryExecutorProvider	executorProvider() Return executor provider which allows to execute SQL queries using configured data source.
Metadata	metadata()
Modify<TableMetadataUnit>	modify()
Read<TableMetadataUnit>	read()
Transformer<TableMetadataUnit>	transformer() Returns transformer which allows various data, filters, operations transformation.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.drill.metastore.components.tables.Tables

basicRequests

Constructor Detail

RdbmsTables

public RdbmsTables(QueryExecutorProvider executorProvider)

Method Detail

context

public RdbmsMetastoreContext<TableMetadataUnit> context()

metadata

public Metadata metadata()

Specified by:

metadata in interface Operations<TableMetadataUnit>

Returns:

component metadata instance

read

public Read<TableMetadataUnit> read()

Specified by:

read in interface Operations<TableMetadataUnit>

Returns:

component read mechanism implementation

modify

public Modify<TableMetadataUnit> modify()

Specified by:

modify in interface Operations<TableMetadataUnit>

Returns:

component write mechanism implementation

executorProvider

public QueryExecutorProvider executorProvider()

Description copied from interface: RdbmsMetastoreContext

Return executor provider which allows to execute SQL queries using configured data source.

Specified by:

executorProvider in interface RdbmsMetastoreContext<TableMetadataUnit>

Returns:

executor provider instance

transformer

public Transformer<TableMetadataUnit> transformer()

Description copied from interface: RdbmsMetastoreContext

Returns transformer which allows various data, filters, operations transformation.

Specified by:

transformer in interface RdbmsMetastoreContext<TableMetadataUnit>

Returns:

transformer instance