com.singlestore.jdbc.client.context

Class BaseContext

java.lang.Object

com.singlestore.jdbc.client.context.BaseContext

All Implemented Interfaces:

com.singlestore.jdbc.client.Context

Direct Known Subclasses:

RedoContext

public class BaseContext
extends Object
implements com.singlestore.jdbc.client.Context

Field Summary

Fields

Modifier and Type	Field and Description
protected int	serverStatus Server status context

Constructor Summary

Constructors

Constructor and Description
BaseContext(HostAddress hostAddress, InitialHandshakePacket handshake, long clientCapabilities, Configuration conf, ExceptionFactory exceptionFactory, com.singlestore.jdbc.client.PrepareCache prepareCache) Constructor of connection context

Method Summary

Modifier and Type	Method and Description
void	addStateFlag(int state) Indicate connection state (for pooling)
boolean	canSkipMeta() Can server skip prepared statement metadata
String	getCharset() Retrieve current charset if session state get it
Function<com.singlestore.jdbc.client.ReadableByteBuf,com.singlestore.jdbc.client.ColumnDecoder>	getColumnDecoderFunction() Column decoder function
Configuration	getConf() Get connection configuration
String	getDatabase() Get current connection database
ExceptionFactory	getExceptionFactory() Get connection exception factory
Prepare	getPrepareCacheCmd(String sql, BasePreparedStatement preparedStatement) Return cached prepare if key match
byte[]	getSeed() Get connection initial seed
long	getServerCapabilities()
int	getServerStatus() Get server connection state
int	getStateFlag() return connection current state change flag
long	getThreadId() return current thread id
Integer	getTransactionIsolationLevel() Get connection transaction isolation level
int	getWarning() has server warnings
boolean	hasClientCapability(long flag) has client capability
boolean	hasServerCapability(long flag) has server capability
boolean	isEofDeprecated() does protocol remove EOF in exchanges
boolean	permitPipeline() Does server and client permit pipeline
Prepare	putPrepareCacheCmd(String sql, Prepare result, BasePreparedStatement preparedStatement) Put prepare result in cache
void	resetPrepareCache() Reset prepare cache (after a failover)
void	resetStateFlag() reset connection state change flag
void	setCharset(String charset) Indicate server charset change
void	setDatabase(String database) set current database context
void	setServerStatus(int serverStatus) Set server connection state
void	setThreadId(long connectionId) Indicate server connection Id (not truncated)
void	setTransactionIsolationLevel(int transactionIsolationLevel) Set current connection transaction isolation level
void	setTreadsConnected(long threadsConnected) Indicate the number of connection on this server.
void	setWarning(int warning) set server state warning number

Methods inherited from class java.lang.Object

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

Field Detail

serverStatus

protected int serverStatus

Server status context

Constructor Detail

BaseContext

public BaseContext(HostAddress hostAddress,
                   InitialHandshakePacket handshake,
                   long clientCapabilities,
                   Configuration conf,
                   ExceptionFactory exceptionFactory,
                   com.singlestore.jdbc.client.PrepareCache prepareCache)

Constructor of connection context

Parameters:

hostAddress - host address

handshake - server handshake

clientCapabilities - client capabilities

conf - connection configuration

exceptionFactory - connection exception factory

prepareCache - LRU prepare cache

Method Detail

getThreadId

public long getThreadId()

Description copied from interface: com.singlestore.jdbc.client.Context

return current thread id

Specified by:

getThreadId in interface com.singlestore.jdbc.client.Context

Returns:

current server thread id

setThreadId

public void setThreadId(long connectionId)

Description copied from interface: com.singlestore.jdbc.client.Context

Indicate server connection Id (not truncated)

Specified by:

setThreadId in interface com.singlestore.jdbc.client.Context

Parameters:

connectionId - connection id

getSeed

public byte[] getSeed()

Description copied from interface: com.singlestore.jdbc.client.Context

Get connection initial seed

Specified by:

getSeed in interface com.singlestore.jdbc.client.Context

Returns:

initial seed

hasServerCapability

public boolean hasServerCapability(long flag)

Description copied from interface: com.singlestore.jdbc.client.Context

has server capability

Specified by:

hasServerCapability in interface com.singlestore.jdbc.client.Context

Parameters:

flag - capability to check

Returns:

true if server has capability

hasClientCapability

public boolean hasClientCapability(long flag)

Description copied from interface: com.singlestore.jdbc.client.Context

has client capability

Specified by:

hasClientCapability in interface com.singlestore.jdbc.client.Context

Parameters:

flag - capability to check

Returns:

true if client has capability

permitPipeline

public boolean permitPipeline()

Description copied from interface: com.singlestore.jdbc.client.Context

Does server and client permit pipeline

Specified by:

permitPipeline in interface com.singlestore.jdbc.client.Context

Returns:

true if permitted

getServerCapabilities

public long getServerCapabilities()

Specified by:

getServerCapabilities in interface com.singlestore.jdbc.client.Context

getServerStatus

public int getServerStatus()

Description copied from interface: com.singlestore.jdbc.client.Context

Get server connection state

Specified by:

getServerStatus in interface com.singlestore.jdbc.client.Context

Returns:

server status

setServerStatus

public void setServerStatus(int serverStatus)

Description copied from interface: com.singlestore.jdbc.client.Context

Set server connection state

Specified by:

setServerStatus in interface com.singlestore.jdbc.client.Context

Parameters:

serverStatus - server status

getDatabase

public String getDatabase()

Description copied from interface: com.singlestore.jdbc.client.Context

Get current connection database

Specified by:

getDatabase in interface com.singlestore.jdbc.client.Context

Returns:

database

setDatabase

public void setDatabase(String database)

Description copied from interface: com.singlestore.jdbc.client.Context

set current database context

Specified by:

setDatabase in interface com.singlestore.jdbc.client.Context

Parameters:

database - database

isEofDeprecated

public boolean isEofDeprecated()

Description copied from interface: com.singlestore.jdbc.client.Context

does protocol remove EOF in exchanges

Specified by:

isEofDeprecated in interface com.singlestore.jdbc.client.Context

Returns:

if EOF packet are deprecated

canSkipMeta

public boolean canSkipMeta()

Description copied from interface: com.singlestore.jdbc.client.Context

Can server skip prepared statement metadata

Specified by:

canSkipMeta in interface com.singlestore.jdbc.client.Context

Returns:

true if possible

getColumnDecoderFunction

public Function<com.singlestore.jdbc.client.ReadableByteBuf,com.singlestore.jdbc.client.ColumnDecoder> getColumnDecoderFunction()

Description copied from interface: com.singlestore.jdbc.client.Context

Column decoder function

Specified by:

getColumnDecoderFunction in interface com.singlestore.jdbc.client.Context

Returns:

Column decoder function

getWarning

public int getWarning()

Description copied from interface: com.singlestore.jdbc.client.Context

has server warnings

Specified by:

getWarning in interface com.singlestore.jdbc.client.Context

Returns:

has warnings

setWarning

public void setWarning(int warning)

Description copied from interface: com.singlestore.jdbc.client.Context

set server state warning number

Specified by:

setWarning in interface com.singlestore.jdbc.client.Context

Parameters:

warning - warning number

getExceptionFactory

public ExceptionFactory getExceptionFactory()

Description copied from interface: com.singlestore.jdbc.client.Context

Get connection exception factory

Specified by:

getExceptionFactory in interface com.singlestore.jdbc.client.Context

Returns:

exception factory

getConf

public Configuration getConf()

Description copied from interface: com.singlestore.jdbc.client.Context

Get connection configuration

Specified by:

getConf in interface com.singlestore.jdbc.client.Context

Returns:

configuration

getTransactionIsolationLevel

public Integer getTransactionIsolationLevel()

Description copied from interface: com.singlestore.jdbc.client.Context

Get connection transaction isolation level

Specified by:

getTransactionIsolationLevel in interface com.singlestore.jdbc.client.Context

Returns:

connection transaction isolation level

setTransactionIsolationLevel

public void setTransactionIsolationLevel(int transactionIsolationLevel)

Description copied from interface: com.singlestore.jdbc.client.Context

Set current connection transaction isolation level

Specified by:

setTransactionIsolationLevel in interface com.singlestore.jdbc.client.Context

Parameters:

transactionIsolationLevel - new connection transaction isolation level

getPrepareCacheCmd

public Prepare getPrepareCacheCmd(String sql,
                                  BasePreparedStatement preparedStatement)

Description copied from interface: com.singlestore.jdbc.client.Context

Return cached prepare if key match

Specified by:

getPrepareCacheCmd in interface com.singlestore.jdbc.client.Context

Parameters:

sql - sql command

preparedStatement - current statement

Returns:

Prepare if found, null if not

putPrepareCacheCmd

public Prepare putPrepareCacheCmd(String sql,
                                  Prepare result,
                                  BasePreparedStatement preparedStatement)

Description copied from interface: com.singlestore.jdbc.client.Context

Put prepare result in cache

Specified by:

putPrepareCacheCmd in interface com.singlestore.jdbc.client.Context

Parameters:

sql - sql command

result - prepare result

preparedStatement - current statement

Returns:

Prepare if was already cached

resetPrepareCache

public void resetPrepareCache()

Description copied from interface: com.singlestore.jdbc.client.Context

Reset prepare cache (after a failover)

Specified by:

resetPrepareCache in interface com.singlestore.jdbc.client.Context

getStateFlag

public int getStateFlag()

Description copied from interface: com.singlestore.jdbc.client.Context

return connection current state change flag

Specified by:

getStateFlag in interface com.singlestore.jdbc.client.Context

Returns:

connection current state change flag

resetStateFlag

public void resetStateFlag()

Description copied from interface: com.singlestore.jdbc.client.Context

reset connection state change flag

Specified by:

resetStateFlag in interface com.singlestore.jdbc.client.Context

addStateFlag

public void addStateFlag(int state)

Description copied from interface: com.singlestore.jdbc.client.Context

Indicate connection state (for pooling)

Specified by:

addStateFlag in interface com.singlestore.jdbc.client.Context

Parameters:

state - indicate that some connection state has changed

setTreadsConnected

public void setTreadsConnected(long threadsConnected)

Description copied from interface: com.singlestore.jdbc.client.Context

Indicate the number of connection on this server.

Specified by:

setTreadsConnected in interface com.singlestore.jdbc.client.Context

Parameters:

threadsConnected - number of threads

getCharset

public String getCharset()

Description copied from interface: com.singlestore.jdbc.client.Context

Retrieve current charset if session state get it

Specified by:

getCharset in interface com.singlestore.jdbc.client.Context

Returns:

current charset

setCharset

public void setCharset(String charset)

Description copied from interface: com.singlestore.jdbc.client.Context

Indicate server charset change

Specified by:

setCharset in interface com.singlestore.jdbc.client.Context

Parameters:

charset - server charset