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

Class MongoTables

java.lang.Object

org.apache.drill.metastore.mongo.components.tables.MongoTables

All Implemented Interfaces:

Tables, MongoMetastoreContext<TableMetadataUnit>, Operations<TableMetadataUnit>

public class MongoTables
extends Object
implements Tables, MongoMetastoreContext<TableMetadataUnit>

Metastore Tables component which stores tables metadata in mongo collection Provides methods to read and modify tables metadata.

Constructor Summary

Constructors

Constructor	Description
MongoTables(com.mongodb.client.MongoCollection<org.bson.Document> tableCollection, com.mongodb.client.MongoClient client)

Method Summary

Modifier and Type	Method	Description
com.mongodb.client.MongoClient	client()	Returns Mongo client implementation
MongoMetastoreContext<TableMetadataUnit>	context()
Metadata	metadata()
Modify<TableMetadataUnit>	modify()
Read<TableMetadataUnit>	read()
com.mongodb.client.MongoCollection<org.bson.Document>	table()	Returns Mongo collection implementation used as storage for Metastore component data.
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 Details

MongoTables

public MongoTables(com.mongodb.client.MongoCollection<org.bson.Document> tableCollection,
 com.mongodb.client.MongoClient client)

Method Details

context

public MongoMetastoreContext<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

table

public com.mongodb.client.MongoCollection<org.bson.Document> table()

Description copied from interface: MongoMetastoreContext

Returns Mongo collection implementation used as storage for Metastore component data.

Specified by:

table in interface MongoMetastoreContext<TableMetadataUnit>

Returns:

Mongo collection instance

client

public com.mongodb.client.MongoClient client()

Description copied from interface: MongoMetastoreContext

Returns Mongo client implementation

Specified by:

client in interface MongoMetastoreContext<TableMetadataUnit>

Returns:

Mongo client instance

transformer

public Transformer<TableMetadataUnit> transformer()

Description copied from interface: MongoMetastoreContext

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

Specified by:

transformer in interface MongoMetastoreContext<TableMetadataUnit>

Returns:

transformer instance