Package io.trino.plugin.mongodb

Class MongoSession

java.lang.Object

io.trino.plugin.mongodb.MongoSession

public class MongoSession
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
static final String	COLLECTION_NAME
static final String	DATABASE_NAME
static final String	ID

Constructor Summary

Constructors

Constructor	Description
MongoSession(TypeManager typeManager, com.mongodb.client.MongoClient client, MongoClientConfig config)

Method Summary

Modifier and Type	Method	Description
void	addColumn(MongoTableHandle table, ColumnMetadata columnMetadata)
boolean	collectionExists(com.mongodb.client.MongoDatabase db, String collectionName)
void	createSchema(String schemaName)
void	createTable(RemoteTableName name, List<MongoColumnHandle> columns, Optional<String> comment)
long	deleteDocuments(RemoteTableName remoteTableName, TupleDomain<ColumnHandle> constraint)
void	dropColumn(MongoTableHandle table, String columnName)
void	dropSchema(String schemaName, boolean cascade)
void	dropTable(RemoteTableName remoteTableName)
com.mongodb.client.MongoCursor<org.bson.Document>	execute(MongoTableHandle tableHandle, List<MongoColumnHandle> columns)
List<HostAddress>	getAddresses()
List<String>	getAllSchemas()
Set<String>	getAllTables(String schema)
com.mongodb.client.MongoCollection<org.bson.Document>	getCollection(RemoteTableName remoteTableName)
List<MongoIndex>	getIndexes(String schemaName, String tableName)
MongoTable	getTable(SchemaTableName tableName)
static List<MongoColumnHandle>	projectSufficientColumns(List<MongoColumnHandle> columnHandles)	Creates a set of sufficient columns for the input projected columns.
void	renameColumn(MongoTableHandle table, String source, String target)
void	renameTable(MongoTableHandle table, SchemaTableName newName)
void	setColumnComment(MongoTableHandle table, String columnName, Optional<String> comment)
void	setColumnType(MongoTableHandle table, String columnName, Type type)
void	setTableComment(MongoTableHandle table, Optional<String> comment)
void	shutdown()
RemoteTableName	toRemoteSchemaTableName(SchemaTableName schemaTableName)

Methods inherited from class java.lang.Object

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

Field Details

DATABASE_NAME

public static final String DATABASE_NAME

See Also:

• Constant Field Values

COLLECTION_NAME

public static final String COLLECTION_NAME

See Also:

• Constant Field Values

ID

public static final String ID

See Also:

• Constant Field Values

Constructor Details

MongoSession

public MongoSession(TypeManager typeManager,
 com.mongodb.client.MongoClient client,
 MongoClientConfig config)

Method Details

shutdown

public void shutdown()

getAddresses

public List<HostAddress> getAddresses()

getAllSchemas

public List<String> getAllSchemas()

createSchema

public void createSchema(String schemaName)

dropSchema

public void dropSchema(String schemaName,
 boolean cascade)

getAllTables

public Set<String> getAllTables(String schema)
                         throws SchemaNotFoundException

Throws:

SchemaNotFoundException

getTable

public MongoTable getTable(SchemaTableName tableName)
                    throws TableNotFoundException

Throws:

TableNotFoundException

createTable

public void createTable(RemoteTableName name,
 List<MongoColumnHandle> columns,
 Optional<String> comment)

dropTable

public void dropTable(RemoteTableName remoteTableName)

setTableComment

public void setTableComment(MongoTableHandle table,
 Optional<String> comment)

setColumnComment

public void setColumnComment(MongoTableHandle table,
 String columnName,
 Optional<String> comment)

renameTable

public void renameTable(MongoTableHandle table,
 SchemaTableName newName)

addColumn

public void addColumn(MongoTableHandle table,
 ColumnMetadata columnMetadata)

renameColumn

public void renameColumn(MongoTableHandle table,
 String source,
 String target)

dropColumn

public void dropColumn(MongoTableHandle table,
 String columnName)

setColumnType

public void setColumnType(MongoTableHandle table,
 String columnName,
 Type type)

getCollection

public com.mongodb.client.MongoCollection<org.bson.Document> getCollection(RemoteTableName remoteTableName)

getIndexes

public List<MongoIndex> getIndexes(String schemaName,
 String tableName)

deleteDocuments

public long deleteDocuments(RemoteTableName remoteTableName,
 TupleDomain<ColumnHandle> constraint)

execute

public com.mongodb.client.MongoCursor<org.bson.Document> execute(MongoTableHandle tableHandle,
 List<MongoColumnHandle> columns)

projectSufficientColumns

public static List<MongoColumnHandle> projectSufficientColumns(List<MongoColumnHandle> columnHandles)

Creates a set of sufficient columns for the input projected columns. For example, if input include columns "a.b" and "a.b.c", then they will be projected from a single column "a.b".

collectionExists

public boolean collectionExists(com.mongodb.client.MongoDatabase db,
 String collectionName)

toRemoteSchemaTableName

public RemoteTableName toRemoteSchemaTableName(SchemaTableName schemaTableName)