Package net.snowflake.client.jdbc

Class DefaultSFConnectionHandler

java.lang.Object

net.snowflake.client.jdbc.DefaultSFConnectionHandler

All Implemented Interfaces:

SFConnectionHandler

public class DefaultSFConnectionHandler
extends Object
implements SFConnectionHandler

The default ConnectionHandler used by SnowflakeConnectionV(x). Unless a separate implementation is provided, a DefaultConnectionHandler will be constructed automatically by the Connection class.

Constructor Summary

Constructors

Constructor	Description
DefaultSFConnectionHandler(SnowflakeConnectString conStr)	Constructs a DefaultConnectionHandler using a SnowflakeConnectString.
DefaultSFConnectionHandler(SnowflakeConnectString conStr, boolean skipOpen)	Constructs a DefaultConnectionHandler using a SnowflakeConnectString.

Method Summary

Modifier and Type	Method	Description
SnowflakeBaseResultSet	createAsyncResultSet(SFBaseResultSet resultSet, Statement statement)	Creates an asynchronous result set from a base SFBaseResultSet for this connection implementation.
ResultSet	createResultSet(String queryID, Statement statement)	Creates a result set from a query id.
SnowflakeBaseResultSet	createResultSet(SFBaseResultSet resultSet, Statement statement)
SFBaseFileTransferAgent	getFileTransferAgent(String command, SFBaseStatement statement)
SFBaseSession	getSFSession()	Returns the default SFSession client implementation.
SFBaseStatement	getSFStatement()	Returns the default SFStatement client implementation.
protected void	initialize(SnowflakeConnectString conStr, String appID, String appVersion)
void	initializeConnection(String url, Properties info)	Initializes the SnowflakeConnection
static Map<String,Object>	mergeProperties(SnowflakeConnectString conStr)	Processes parameters given in the connection string.
boolean	supportsAsyncQuery()

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.snowflake.client.jdbc.SFConnectionHandler

getBindStageName

Constructor Detail

DefaultSFConnectionHandler

public DefaultSFConnectionHandler(SnowflakeConnectString conStr)

Constructs a DefaultConnectionHandler using a SnowflakeConnectString. This can be done by using SnowflakeConnectString.parse(url, info), where url is a connection url and info is a java.util.Properties

Parameters:

conStr - A SnowflakeConnectString object

DefaultSFConnectionHandler

public DefaultSFConnectionHandler(SnowflakeConnectString conStr,
                                  boolean skipOpen)

Constructs a DefaultConnectionHandler using a SnowflakeConnectString. This can be done by using SnowflakeConnectString.parse(url, info), where url is a connection url and info is a java.util.Properties

Parameters:

conStr - A SnowflakeConnectString object

skipOpen - Skip calling open() on the session (for test-use only)

Method Detail

mergeProperties

public static Map<String,Object> mergeProperties(SnowflakeConnectString conStr)

Processes parameters given in the connection string. This extracts accountName, databaseName, schemaName from the URL if it is specified there.

Parameters:

conStr - Connection string object

Returns:

a map containing accountName, databaseName and schemaName if specified

supportsAsyncQuery

public boolean supportsAsyncQuery()

Specified by:

supportsAsyncQuery in interface SFConnectionHandler

Returns:

Whether this Connection supports asynchronous queries. If yes, createAsyncResultSet may be called.

initializeConnection

public void initializeConnection(String url,
                                 Properties info)
                          throws SQLException

Description copied from interface: SFConnectionHandler

Initializes the SnowflakeConnection

Specified by:

initializeConnection in interface SFConnectionHandler

Parameters:

url - url string

info - connection parameters

Throws:

SQLException - if any error is encountered

getSFSession

public SFBaseSession getSFSession()

Returns the default SFSession client implementation.

Specified by:

getSFSession in interface SFConnectionHandler

Returns:

Gets the SFBaseSession implementation for this connection implementation

getSFStatement

public SFBaseStatement getSFStatement()

Returns the default SFStatement client implementation.

Specified by:

getSFStatement in interface SFConnectionHandler

Returns:

Returns the SFStatementInterface implementation for this connection implementation

initialize

protected void initialize(SnowflakeConnectString conStr,
                          String appID,
                          String appVersion)
                   throws SQLException

Throws:

SQLException

createResultSet

public ResultSet createResultSet(String queryID,
                                 Statement statement)
                          throws SQLException

Description copied from interface: SFConnectionHandler

Creates a result set from a query id.

Specified by:

createResultSet in interface SFConnectionHandler

Parameters:

queryID - the query ID

statement - Statement object

Returns:

ResultSet

Throws:

SQLException - if any error occurs

createResultSet

public SnowflakeBaseResultSet createResultSet(SFBaseResultSet resultSet,
                                              Statement statement)
                                       throws SQLException

Specified by:

createResultSet in interface SFConnectionHandler

Parameters:

resultSet - SFBaseResultSet

statement - Statement

Returns:

Creates a SnowflakeResultSet from a base SFBaseResultSet for this connection implementation.

Throws:

SQLException - if an error occurs

createAsyncResultSet

public SnowflakeBaseResultSet createAsyncResultSet(SFBaseResultSet resultSet,
                                                   Statement statement)
                                            throws SQLException

Description copied from interface: SFConnectionHandler

Creates an asynchronous result set from a base SFBaseResultSet for this connection implementation.

Specified by:

createAsyncResultSet in interface SFConnectionHandler

Parameters:

resultSet - SFBaseResultSet

statement - Statement

Returns:

An asynchronous result set from SFBaseResultSet

Throws:

SQLException - if an error occurs

getFileTransferAgent

public SFBaseFileTransferAgent getFileTransferAgent(String command,
                                                    SFBaseStatement statement)
                                             throws SQLNonTransientConnectionException,
                                                    SnowflakeSQLException

Specified by:

getFileTransferAgent in interface SFConnectionHandler

Parameters:

command - The command to parse for this file transfer (e.g., PUT/GET)

statement - The statement to use for this file transfer

Returns:

SFBaseFileTransferAgent

Throws:

SQLNonTransientConnectionException - if a connection error occurs

SnowflakeSQLException - if any other exception occurs