Class DatabricksConnection

java.lang.Object

com.databricks.jdbc.api.impl.DatabricksConnection

All Implemented Interfaces:

IDatabricksConnection, IDatabricksConnectionInternal, AutoCloseable, Connection, Wrapper

public class DatabricksConnection
extends Object
implements IDatabricksConnection, IDatabricksConnectionInternal

Implementation for Databricks specific connection.

Field Summary

Fields inherited from interface java.sql.Connection

TRANSACTION_NONE, TRANSACTION_READ_COMMITTED, TRANSACTION_READ_UNCOMMITTED, TRANSACTION_REPEATABLE_READ, TRANSACTION_SERIALIZABLE

Constructor Summary

Constructors

Constructor	Description
DatabricksConnection(IDatabricksConnectionContext connectionContext)	Creates an instance of Databricks connection for given connection context.
DatabricksConnection(IDatabricksConnectionContext connectionContext, IDatabricksClient testDatabricksClient)

Method Summary

Modifier and Type	Method	Description
void	abort(Executor executor)
void	beginRequest()
void	clearWarnings()
void	close()
void	closeStatement(IDatabricksStatement statement)	Closes a statement from the connection's active set.
void	commit()
Array	createArrayOf(String typeName, Object[] elements)
Blob	createBlob()
Clob	createClob()
NClob	createNClob()
SQLXML	createSQLXML()
Statement	createStatement()
Statement	createStatement(int resultSetType, int resultSetConcurrency)
Statement	createStatement(int resultSetType, int resultSetConcurrency, int resultSetHoldability)
Struct	createStruct(String typeName, Object[] attributes)
void	endRequest()
boolean	getAutoCommit()
String	getCatalog()
Properties	getClientInfo()	Retrieves all client and session properties as a Properties object.
String	getClientInfo(String name)	Retrieves the value of the specified client info property. case-insensitive
Connection	getConnection()	Returns the corresponding sql connection object
IDatabricksConnectionContext	getConnectionContext()	Returns the connection context associated with the connection.
String	getConnectionId()	Retrieves the unique identifier for this connection.
int	getHoldability()
DatabaseMetaData	getMetaData()
int	getNetworkTimeout()
String	getSchema()
IDatabricksSession	getSession()	Returns the underlying session for the connection.
Statement	getStatement(String statementId)	Retrieves a statement handle for a given statement ID.
int	getTransactionIsolation()
Map<String,Class<?>>	getTypeMap()
SQLWarning	getWarnings()
boolean	isClosed()
boolean	isReadOnly()
boolean	isValid(int timeout)
boolean	isWrapperFor(Class<?> iface)
String	nativeSQL(String sql)
void	open()	Opens the connection and initiates the underlying session
CallableStatement	prepareCall(String sql)
CallableStatement	prepareCall(String sql, int resultSetType, int resultSetConcurrency)
CallableStatement	prepareCall(String sql, int resultSetType, int resultSetConcurrency, int resultSetHoldability)
PreparedStatement	prepareStatement(String sql)
PreparedStatement	prepareStatement(String sql, int autoGeneratedKeys)
PreparedStatement	prepareStatement(String sql, int[] columnIndexes)
PreparedStatement	prepareStatement(String sql, int resultSetType, int resultSetConcurrency)
PreparedStatement	prepareStatement(String sql, int resultSetType, int resultSetConcurrency, int resultSetHoldability)
PreparedStatement	prepareStatement(String sql, String[] columnNames)
void	releaseSavepoint(Savepoint savepoint)
void	rollback()
void	rollback(Savepoint savepoint)
void	setAutoCommit(boolean autoCommit)
void	setCatalog(String catalog)
void	setClientInfo(String name, String value)	Sets a client info property/session config
void	setClientInfo(Properties properties)	Sets multiple client info properties from the provided Properties object.
void	setHoldability(int holdability)
void	setNetworkTimeout(Executor executor, int milliseconds)
void	setReadOnly(boolean readOnly)
Savepoint	setSavepoint()
Savepoint	setSavepoint(String name)
void	setSchema(String schema)
void	setShardingKey(ShardingKey shardingKey)
void	setShardingKey(ShardingKey shardingKey, ShardingKey superShardingKey)
boolean	setShardingKeyIfValid(ShardingKey shardingKey, int timeout)
boolean	setShardingKeyIfValid(ShardingKey shardingKey, ShardingKey superShardingKey, int timeout)
void	setTransactionIsolation(int level)
void	setTypeMap(Map<String,Class<?>> map)
<T> T	unwrap(Class<T> iface)

Methods inherited from class java.lang.Object

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

Constructor Details

DatabricksConnection

public DatabricksConnection(IDatabricksConnectionContext connectionContext)
                     throws DatabricksSQLException

Creates an instance of Databricks connection for given connection context.

Parameters:

connectionContext - underlying connection context

Throws:

DatabricksSQLException

DatabricksConnection

public DatabricksConnection(IDatabricksConnectionContext connectionContext,
 IDatabricksClient testDatabricksClient)
                     throws DatabricksSQLException

Throws:

DatabricksSQLException

Method Details

open

public void open()
          throws DatabricksSQLException

Description copied from interface: IDatabricksConnectionInternal

Opens the connection and initiates the underlying session

Specified by:

open in interface IDatabricksConnectionInternal

Throws:

DatabricksSQLException

getStatement

public Statement getStatement(String statementId)
                       throws SQLException

Description copied from interface: IDatabricksConnection

Retrieves a statement handle for a given statement ID.

Specified by:

getStatement in interface IDatabricksConnection

Parameters:

statementId - The unique identifier of the statement to retrieve

Returns:

A Statement object representing the statement

Throws:

SQLException - if a database access error occurs or this method is called on a closed connection

getConnectionId

public String getConnectionId()
                       throws SQLException

Description copied from interface: IDatabricksConnection

Retrieves the unique identifier for this connection.

Specified by:

getConnectionId in interface IDatabricksConnection

Returns:

A string representing the unique connection ID

Throws:

SQLException - if a database access error occurs or this method is called on a closed connection

getSession

public IDatabricksSession getSession()

Description copied from interface: IDatabricksConnectionInternal

Returns the underlying session for the connection.

Specified by:

getSession in interface IDatabricksConnectionInternal

createStatement

public Statement createStatement()

Specified by:

createStatement in interface Connection

prepareStatement

public PreparedStatement prepareStatement(String sql)

Specified by:

prepareStatement in interface Connection

prepareCall

public CallableStatement prepareCall(String sql)
                              throws SQLException

Specified by:

prepareCall in interface Connection

Throws:

SQLException

nativeSQL

public String nativeSQL(String sql)
                 throws SQLException

Specified by:

nativeSQL in interface Connection

Throws:

SQLException

setAutoCommit

public void setAutoCommit(boolean autoCommit)
                   throws SQLException

Specified by:

setAutoCommit in interface Connection

Throws:

SQLException

getAutoCommit

public boolean getAutoCommit()
                      throws SQLException

Specified by:

getAutoCommit in interface Connection

Throws:

SQLException

commit

public void commit()
            throws SQLException

Specified by:

commit in interface Connection

Throws:

SQLException

rollback

public void rollback()
              throws SQLException

Specified by:

rollback in interface Connection

Throws:

SQLException

close

public void close()
           throws DatabricksSQLException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Connection

Throws:

DatabricksSQLException

isClosed

public boolean isClosed()
                 throws SQLException

Specified by:

isClosed in interface Connection

Throws:

SQLException

getMetaData

public DatabaseMetaData getMetaData()
                             throws SQLException

Specified by:

getMetaData in interface Connection

Throws:

SQLException

setReadOnly

public void setReadOnly(boolean readOnly)
                 throws SQLException

Specified by:

setReadOnly in interface Connection

Throws:

SQLException

isReadOnly

public boolean isReadOnly()
                   throws SQLException

Specified by:

isReadOnly in interface Connection

Throws:

SQLException

setCatalog

public void setCatalog(String catalog)
                throws SQLException

Specified by:

setCatalog in interface Connection

Throws:

SQLException

getCatalog

public String getCatalog()
                  throws SQLException

Specified by:

getCatalog in interface Connection

Throws:

SQLException

setTransactionIsolation

public void setTransactionIsolation(int level)
                             throws SQLException

Specified by:

setTransactionIsolation in interface Connection

Throws:

SQLException

getTransactionIsolation

public int getTransactionIsolation()
                            throws SQLException

Specified by:

getTransactionIsolation in interface Connection

Throws:

SQLException

getWarnings

public SQLWarning getWarnings()
                       throws SQLException

Specified by:

getWarnings in interface Connection

Throws:

SQLException

clearWarnings

public void clearWarnings()
                   throws SQLException

Specified by:

clearWarnings in interface Connection

Throws:

SQLException

createStatement

public Statement createStatement(int resultSetType,
 int resultSetConcurrency)
                          throws SQLException

Specified by:

createStatement in interface Connection

Throws:

SQLException

prepareStatement

public PreparedStatement prepareStatement(String sql,
 int resultSetType,
 int resultSetConcurrency)
                                   throws SQLException

Specified by:

prepareStatement in interface Connection

Throws:

SQLException

prepareCall

public CallableStatement prepareCall(String sql,
 int resultSetType,
 int resultSetConcurrency)
                              throws SQLException

Specified by:

prepareCall in interface Connection

Throws:

SQLException

getTypeMap

public Map<String,Class<?>> getTypeMap()

Specified by:

getTypeMap in interface Connection

setTypeMap

public void setTypeMap(Map<String,Class<?>> map)
                throws SQLException

Specified by:

setTypeMap in interface Connection

Throws:

SQLException

setHoldability

public void setHoldability(int holdability)
                    throws SQLException

Specified by:

setHoldability in interface Connection

Throws:

SQLException

getHoldability

public int getHoldability()
                   throws SQLException

Specified by:

getHoldability in interface Connection

Throws:

SQLException

setSavepoint

public Savepoint setSavepoint()
                       throws SQLException

Specified by:

setSavepoint in interface Connection

Throws:

SQLException

setSavepoint

public Savepoint setSavepoint(String name)
                       throws SQLException

Specified by:

setSavepoint in interface Connection

Throws:

SQLException

rollback

public void rollback(Savepoint savepoint)
              throws SQLException

Specified by:

rollback in interface Connection

Throws:

SQLException

releaseSavepoint

public void releaseSavepoint(Savepoint savepoint)
                      throws SQLException

Specified by:

releaseSavepoint in interface Connection

Throws:

SQLException

createStatement

public Statement createStatement(int resultSetType,
 int resultSetConcurrency,
 int resultSetHoldability)
                          throws SQLException

Specified by:

createStatement in interface Connection

Throws:

SQLException

prepareStatement

public PreparedStatement prepareStatement(String sql,
 int resultSetType,
 int resultSetConcurrency,
 int resultSetHoldability)
                                   throws SQLException

Specified by:

prepareStatement in interface Connection

Throws:

SQLException

prepareCall

public CallableStatement prepareCall(String sql,
 int resultSetType,
 int resultSetConcurrency,
 int resultSetHoldability)
                              throws SQLException

Specified by:

prepareCall in interface Connection

Throws:

SQLException

prepareStatement

public PreparedStatement prepareStatement(String sql,
 int autoGeneratedKeys)
                                   throws SQLException

Specified by:

prepareStatement in interface Connection

Throws:

SQLException

prepareStatement

public PreparedStatement prepareStatement(String sql,
 int[] columnIndexes)
                                   throws SQLException

Specified by:

prepareStatement in interface Connection

Throws:

SQLException

prepareStatement

public PreparedStatement prepareStatement(String sql,
 String[] columnNames)
                                   throws SQLException

Specified by:

prepareStatement in interface Connection

Throws:

SQLException

createClob

public Clob createClob()
                throws SQLException

Specified by:

createClob in interface Connection

Throws:

SQLException

createBlob

public Blob createBlob()
                throws SQLException

Specified by:

createBlob in interface Connection

Throws:

SQLException

createNClob

public NClob createNClob()
                  throws SQLException

Specified by:

createNClob in interface Connection

Throws:

SQLException

createSQLXML

public SQLXML createSQLXML()
                    throws SQLException

Specified by:

createSQLXML in interface Connection

Throws:

SQLException

isValid

public boolean isValid(int timeout)
                throws SQLException

Specified by:

isValid in interface Connection

Throws:

SQLException

setClientInfo

public void setClientInfo(String name,
 String value)
                   throws SQLClientInfoException

Sets a client info property/session config

Specified by:

setClientInfo in interface Connection

Parameters:

name - The name of the property to set

value - The value to set

Throws:

SQLClientInfoException - If the property cannot be set due to validation errors or if the property name is not recognized

setClientInfo

public void setClientInfo(Properties properties)
                   throws SQLClientInfoException

Sets multiple client info properties from the provided Properties object.

Specified by:

setClientInfo in interface Connection

Parameters:

properties - The properties containing client info to set

Throws:

SQLClientInfoException - If any property cannot be set

getClientInfo

public String getClientInfo(String name)
                     throws SQLException

Retrieves the value of the specified client info property. case-insensitive

Specified by:

getClientInfo in interface Connection

Parameters:

name - The name of the client info property to retrieve

Returns:

The value of the specified client info property, or null if not found

Throws:

SQLException - If a database access error occurs

getClientInfo

public Properties getClientInfo()
                         throws SQLException

Retrieves all client and session properties as a Properties object. Keys are in lower case.

The returned Properties object contains default session configurations, user-defined session configurations, and client info properties.

Specified by:

getClientInfo in interface Connection

Returns:

A Properties object containing all client info properties

Throws:

SQLException - If a database access error occurs

createArrayOf

public Array createArrayOf(String typeName,
 Object[] elements)
                    throws SQLException

Specified by:

createArrayOf in interface Connection

Throws:

SQLException

createStruct

public Struct createStruct(String typeName,
 Object[] attributes)
                    throws SQLException

Specified by:

createStruct in interface Connection

Throws:

SQLException

setSchema

public void setSchema(String schema)
               throws SQLException

Specified by:

setSchema in interface Connection

Throws:

SQLException

getSchema

public String getSchema()
                 throws SQLException

Specified by:

getSchema in interface Connection

Throws:

SQLException

abort

public void abort(Executor executor)
           throws SQLException

Specified by:

abort in interface Connection

Throws:

SQLException

setNetworkTimeout

public void setNetworkTimeout(Executor executor,
 int milliseconds)
                       throws SQLException

Specified by:

setNetworkTimeout in interface Connection

Throws:

SQLException

getNetworkTimeout

public int getNetworkTimeout()
                      throws SQLException

Specified by:

getNetworkTimeout in interface Connection

Throws:

SQLException

unwrap

public <T> T unwrap(Class<T> iface)
             throws SQLException

Specified by:

unwrap in interface Wrapper

Throws:

SQLException

isWrapperFor

public boolean isWrapperFor(Class<?> iface)
                     throws SQLException

Specified by:

isWrapperFor in interface Wrapper

Throws:

SQLException

closeStatement

public void closeStatement(IDatabricksStatement statement)

Description copied from interface: IDatabricksConnectionInternal

Closes a statement from the connection's active set.

Specified by:

closeStatement in interface IDatabricksConnectionInternal

Parameters:

statement - IDatabricksStatement to be closed

beginRequest

public void beginRequest()

Specified by:

beginRequest in interface Connection

endRequest

public void endRequest()

Specified by:

endRequest in interface Connection

setShardingKeyIfValid

public boolean setShardingKeyIfValid(ShardingKey shardingKey,
 ShardingKey superShardingKey,
 int timeout)
                              throws DatabricksSQLFeatureNotImplementedException

Specified by:

setShardingKeyIfValid in interface Connection

Throws:

DatabricksSQLFeatureNotImplementedException

setShardingKeyIfValid

public boolean setShardingKeyIfValid(ShardingKey shardingKey,
 int timeout)
                              throws DatabricksSQLFeatureNotImplementedException

Specified by:

setShardingKeyIfValid in interface Connection

Throws:

DatabricksSQLFeatureNotImplementedException

setShardingKey

public void setShardingKey(ShardingKey shardingKey,
 ShardingKey superShardingKey)
                    throws DatabricksSQLFeatureNotImplementedException

Specified by:

setShardingKey in interface Connection

Throws:

DatabricksSQLFeatureNotImplementedException

setShardingKey

public void setShardingKey(ShardingKey shardingKey)
                    throws DatabricksSQLFeatureNotImplementedException

Specified by:

setShardingKey in interface Connection

Throws:

DatabricksSQLFeatureNotImplementedException

getConnection

public Connection getConnection()

Description copied from interface: IDatabricksConnectionInternal

Returns the corresponding sql connection object

Specified by:

getConnection in interface IDatabricksConnectionInternal

getConnectionContext

public IDatabricksConnectionContext getConnectionContext()

Description copied from interface: IDatabricksConnectionInternal

Returns the connection context associated with the connection.

Specified by:

getConnectionContext in interface IDatabricksConnectionInternal