Class MariaDbConnection
- java.lang.Object
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- org.mariadb.jdbc.MariaDbConnection
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- All Implemented Interfaces:
AutoCloseable
,Connection
,Wrapper
public class MariaDbConnection extends Object implements Connection
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Field Summary
Fields Modifier and Type Field Description ReentrantLock
lock
protected boolean
nullCatalogMeansCurrent
MariaDbPooledConnection
pooledConnection
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Fields inherited from interface java.sql.Connection
TRANSACTION_NONE, TRANSACTION_READ_COMMITTED, TRANSACTION_READ_UNCOMMITTED, TRANSACTION_REPEATABLE_READ, TRANSACTION_SERIALIZABLE
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Constructor Summary
Constructors Constructor Description MariaDbConnection(Protocol protocol)
Creates a new connection with a given protocol and query factory.
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Deprecated Methods Modifier and Type Method Description HostAddress
__test_host()
void
abort(Executor executor)
Abort connection.boolean
canUseServerTimeout()
void
clearWarnings()
Clears all warnings reported for thisConnection
object.ClientSidePreparedStatement
clientPrepareStatement(String sql)
Create a new client prepared statement.void
close()
close the connection.void
commit()
Sends commit to the server.Array
createArrayOf(String typeName, Object[] elements)
Factory method for creating Array objects.Blob
createBlob()
Constructs an object that implements theBlob
interface.Clob
createClob()
Constructs an object that implements theClob
interface.NClob
createNClob()
Constructs an object that implements theNClob
interface.SQLXML
createSQLXML()
Constructs an object that implements theSQLXML
interface.Statement
createStatement()
creates a new statement.Statement
createStatement(int resultSetType, int resultSetConcurrency)
Creates aStatement
object that will generateResultSet
objects with the given type and concurrency.Statement
createStatement(int resultSetType, int resultSetConcurrency, int resultSetHoldability)
Creates aStatement
object that will generateResultSet
objects with the given type, concurrency, and holdability.Struct
createStruct(String typeName, Object[] attributes)
Factory method for creating Struct objects.boolean
getAutoCommit()
returns true if statements on this connection are auto committed.String
getCatalog()
Retrieves thisConnection
object's current catalog name.Properties
getClientInfo()
Returns a list containing the name and current value of each client info property supported by the driver.String
getClientInfo(String name)
Returns the value of the client info property specified by name.int
getHoldability()
Retrieves the current holdability ofResultSet
objects created using thisConnection
object.String
getHostname()
Deprecated.CallableParameterMetaData
getInternalParameterMetaData(String procedureName, String databaseName, boolean isFunction)
int
getLowercaseTableNames()
Are table case sensitive or not .DatabaseMetaData
getMetaData()
returns the meta data about the database.int
getNetworkTimeout()
Get network timeout.protected boolean
getPinGlobalTxToPhysicalConnection()
int
getPort()
Deprecated.protected Protocol
getProtocol()
String
getSchema()
long
getServerThreadId()
int
getTransactionIsolation()
Retrieves thisConnection
object's current transaction isolation level.Map<String,Class<?>>
getTypeMap()
Retrieves theMap
object associated with thisConnection
object.String
getUsername()
Deprecated.SQLWarning
getWarnings()
Retrieves the first warning reported by calls on thisConnection
object.boolean
includeDeadLockInfo()
boolean
includeThreadsTraces()
boolean
isClosed()
checks if the connection is closed.boolean
isReadOnly()
Retrieves whether thisConnection
object is in read-only mode.boolean
isServerMariaDb()
boolean
isValid(int timeout)
Returns true if the connection has not been closed and is still valid.boolean
isWrapperFor(Class<?> iface)
Returns true if this either implements the interface argument or is directly or indirectly a wrapper for an object that does.String
nativeSQL(String sql)
static MariaDbConnection
newConnection(UrlParser urlParser, GlobalStateInfo globalInfo)
Create new connection Object.CallableStatement
prepareCall(String sql)
Creates aCallableStatement
object for calling database stored procedures.CallableStatement
prepareCall(String sql, int resultSetType, int resultSetConcurrency)
Creates aCallableStatement
object that will generateResultSet
objects with the given type and concurrency.CallableStatement
prepareCall(String sql, int resultSetType, int resultSetConcurrency, int resultSetHoldability)
Creates aCallableStatement
object that will generateResultSet
objects with the given type and concurrency.PreparedStatement
prepareStatement(String sql)
creates a new prepared statement.PreparedStatement
prepareStatement(String sql, int autoGeneratedKeys)
Creates a defaultPreparedStatement
object that has the capability to retrieve auto-generated keys.PreparedStatement
prepareStatement(String sql, int[] columnIndexes)
Creates a defaultPreparedStatement
object capable of returning the auto-generated keys designated by the given array.PreparedStatement
prepareStatement(String sql, int resultSetType, int resultSetConcurrency)
Creates aPreparedStatement
object that will generateResultSet
objects with the given type and concurrency.PreparedStatement
prepareStatement(String sql, int resultSetType, int resultSetConcurrency, int resultSetHoldability)
Creates aPreparedStatement
object that will generateResultSet
objects with the given type, concurrency, and holdability.PreparedStatement
prepareStatement(String sql, String[] columnNames)
Creates a defaultPreparedStatement
object capable of returning the auto-generated keys designated by the given array.static String
quoteIdentifier(String string)
void
reenableWarnings()
Re-enable warnings, when next statement is executed.void
releaseSavepoint(Savepoint savepoint)
Removes the specifiedSavepoint
and subsequentSavepoint
objects from the current transaction.void
reset()
Reset connection set has it was after creating a "fresh" new connection.void
rollback()
Rolls back a transaction.void
rollback(Savepoint savepoint)
Undoes all changes made after the givenSavepoint
object was set.ServerSidePreparedStatement
serverPrepareStatement(String sql)
Create a new server prepared statement.void
setAutoCommit(boolean autoCommit)
Sets whether this connection is auto committed.void
setCatalog(String catalog)
Sets the given catalog name in order to select a subspace of thisConnection
object's database in which to work.void
setClientInfo(String name, String value)
Sets the value of the client info property specified by name to the value specified by value.void
setClientInfo(Properties properties)
Sets the value of the connection's client info properties.void
setDefaultTransactionIsolation(int defaultTransactionIsolation)
void
setHoldability(int holdability)
Changes the default holdability ofResultSet
objects created using thisConnection
object to the given holdability.void
setHostFailed()
If failover is not activated, will close connection when a connection error occur.void
setNetworkTimeout(Executor executor, int milliseconds)
Change network timeout.void
setReadOnly(boolean readOnly)
Sets whether this connection is read only.Savepoint
setSavepoint()
Creates an unnamed savepoint in the current transaction and returns the newSavepoint *
object that represents it.Savepoint
setSavepoint(String name)
Creates a savepoint with the given name in the current transaction and returns the newSavepoint
object that represents it.void
setSchema(String arg0)
void
setTransactionIsolation(int level)
Attempts to change the transaction isolation level for thisConnection
object to the one given.void
setTypeMap(Map<String,Class<?>> map)
Installs the givenTypeMap
object as the type map for thisConnection
object.static String
unquoteIdentifier(String string)
Deprecated.since 1.3.0<T> T
unwrap(Class<T> iface)
Returns an object that implements the given interface to allow access to non-standard methods, or standard methods not exposed by the proxy.boolean
versionGreaterOrEqual(int major, int minor, int patch)
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface java.sql.Connection
beginRequest, endRequest, setShardingKey, setShardingKey, setShardingKeyIfValid, setShardingKeyIfValid
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Field Detail
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lock
public final ReentrantLock lock
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pooledConnection
public MariaDbPooledConnection pooledConnection
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nullCatalogMeansCurrent
protected boolean nullCatalogMeansCurrent
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Constructor Detail
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MariaDbConnection
public MariaDbConnection(Protocol protocol)
Creates a new connection with a given protocol and query factory.- Parameters:
protocol
- the protocol to use.
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Method Detail
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newConnection
public static MariaDbConnection newConnection(UrlParser urlParser, GlobalStateInfo globalInfo) throws SQLException
Create new connection Object.- Parameters:
urlParser
- parserglobalInfo
- global info- Returns:
- connection object
- Throws:
SQLException
- if any connection error occur
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unquoteIdentifier
@Deprecated public static String unquoteIdentifier(String string)
Deprecated.since 1.3.0UnQuote string.- Parameters:
string
- value- Returns:
- unquote string
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getProtocol
protected Protocol getProtocol()
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createStatement
public Statement createStatement() throws SQLException
creates a new statement.- Specified by:
createStatement
in interfaceConnection
- Returns:
- a statement
- Throws:
SQLException
- if we cannot create the statement.
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createStatement
public Statement createStatement(int resultSetType, int resultSetConcurrency)
Creates aStatement
object that will generateResultSet
objects with the given type and concurrency. This method is the same as thecreateStatement
method above, but it allows the default result set type and concurrency to be overridden. The holdability of the created result sets can be determined by callinggetHoldability()
.- Specified by:
createStatement
in interfaceConnection
- Parameters:
resultSetType
- a result set type; one ofResultSet.TYPE_FORWARD_ONLY
,ResultSet.TYPE_SCROLL_INSENSITIVE
, orResultSet.TYPE_SCROLL_SENSITIVE
resultSetConcurrency
- a concurrency type; one ofResultSet.CONCUR_READ_ONLY
orResultSet.CONCUR_UPDATABLE
- Returns:
- a new
Statement
object that will generateResultSet
objects with the given type and concurrency
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createStatement
public Statement createStatement(int resultSetType, int resultSetConcurrency, int resultSetHoldability)
Creates aStatement
object that will generateResultSet
objects with the given type, concurrency, and holdability. This method is the same as thecreateStatement
method above, but it allows the default result set type, concurrency, and holdability to be overridden.- Specified by:
createStatement
in interfaceConnection
- Parameters:
resultSetType
- one of the followingResultSet
constants:ResultSet.TYPE_FORWARD_ONLY
,ResultSet.TYPE_SCROLL_INSENSITIVE
, orResultSet.TYPE_SCROLL_SENSITIVE
resultSetConcurrency
- one of the followingResultSet
constants:ResultSet.CONCUR_READ_ONLY
orResultSet.CONCUR_UPDATABLE
resultSetHoldability
- one of the followingResultSet
constants:ResultSet.HOLD_CURSORS_OVER_COMMIT
orResultSet.CLOSE_CURSORS_AT_COMMIT
- Returns:
- a new
Statement
object that will generateResultSet
objects with the given type, concurrency, and holdability - See Also:
ResultSet
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clientPrepareStatement
public ClientSidePreparedStatement clientPrepareStatement(String sql) throws SQLException
Create a new client prepared statement.- Parameters:
sql
- the query.- Returns:
- a client prepared statement.
- Throws:
SQLException
- if there is a problem preparing the statement.
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serverPrepareStatement
public ServerSidePreparedStatement serverPrepareStatement(String sql) throws SQLException
Create a new server prepared statement.- Parameters:
sql
- the query.- Returns:
- a server prepared statement.
- Throws:
SQLException
- if there is a problem preparing the statement.
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prepareStatement
public PreparedStatement prepareStatement(String sql) throws SQLException
creates a new prepared statement.- Specified by:
prepareStatement
in interfaceConnection
- Parameters:
sql
- the query.- Returns:
- a prepared statement.
- Throws:
SQLException
- if there is a problem preparing the statement.
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prepareStatement
public PreparedStatement prepareStatement(String sql, int resultSetType, int resultSetConcurrency) throws SQLException
Creates aPreparedStatement
object that will generateResultSet
objects with the given type and concurrency. This method is the same as theprepareStatement
method above, but it allows the default result set type and concurrency to be overridden. The holdability of the created result sets can be determined by callinggetHoldability()
.- Specified by:
prepareStatement
in interfaceConnection
- Parameters:
sql
- aString
object that is the SQL statement to be sent to the database; may contain one or more '?' IN parametersresultSetType
- a result set type; one ofResultSet.TYPE_FORWARD_ONLY
,ResultSet.TYPE_SCROLL_INSENSITIVE
, orResultSet.TYPE_SCROLL_SENSITIVE
resultSetConcurrency
- a concurrency type; one ofResultSet.CONCUR_READ_ONLY
orResultSet.CONCUR_UPDATABLE
- Returns:
- a new PreparedStatement object containing the pre-compiled SQL statement that will
produce
ResultSet
objects with the given type and concurrency - Throws:
SQLException
- if a database access error occurs, this method is called on a closed connection or the given parameters are notResultSet
constants indicating type and concurrency
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prepareStatement
public PreparedStatement prepareStatement(String sql, int resultSetType, int resultSetConcurrency, int resultSetHoldability) throws SQLException
Creates aPreparedStatement
object that will generateResultSet
objects with the given type, concurrency, and holdability.This method is the same as the
prepareStatement
method above, but it allows the default result set type, concurrency, and holdability to be overridden.- Specified by:
prepareStatement
in interfaceConnection
- Parameters:
sql
- aString
object that is the SQL statement to be sent to the database; may contain one or more '?' IN parametersresultSetType
- one of the followingResultSet
constants:ResultSet.TYPE_FORWARD_ONLY
,ResultSet.TYPE_SCROLL_INSENSITIVE
, orResultSet.TYPE_SCROLL_SENSITIVE
resultSetConcurrency
- one of the followingResultSet
constants:ResultSet.CONCUR_READ_ONLY
orResultSet.CONCUR_UPDATABLE
resultSetHoldability
- one of the followingResultSet
constants:ResultSet.HOLD_CURSORS_OVER_COMMIT
orResultSet.CLOSE_CURSORS_AT_COMMIT
- Returns:
- a new
PreparedStatement
object, containing the pre-compiled SQL statement, that will generateResultSet
objects with the given type, concurrency, and holdability - Throws:
SQLException
- if a database access error occurs, this method is called on a closed connection or the given parameters are notResultSet
constants indicating type, concurrency, and holdability- See Also:
ResultSet
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prepareStatement
public PreparedStatement prepareStatement(String sql, int autoGeneratedKeys) throws SQLException
Creates a defaultPreparedStatement
object that has the capability to retrieve auto-generated keys. The given constant tells the driver whether it should make auto-generated keys available for retrieval. This parameter is ignored if the SQL statement is not anINSERT
statement, or an SQL statement able to return auto-generated keys (the list of such statements is vendor-specific).Note: This method is optimized for handling parametric SQL statements that benefit from precompilation. If the driver supports precompilation, the method
prepareStatement
will send the statement to the database for precompilation. Some drivers may not support precompilation. In this case, the statement may not be sent to the database until thePreparedStatement
object is executed. This has no direct effect on users; however, it does affect which methods throw certain SQLExceptions.Result sets created using the returned
PreparedStatement
object will by default be typeTYPE_FORWARD_ONLY
and have a concurrency level ofCONCUR_READ_ONLY
. The holdability of the created result sets can be determined by callinggetHoldability()
.- Specified by:
prepareStatement
in interfaceConnection
- Parameters:
sql
- an SQL statement that may contain one or more '?' IN parameter placeholdersautoGeneratedKeys
- a flag indicating whether auto-generated keys should be returned; one ofStatement.RETURN_GENERATED_KEYS
orStatement.NO_GENERATED_KEYS
- Returns:
- a new
PreparedStatement
object, containing the pre-compiled SQL statement, that will have the capability of returning auto-generated keys - Throws:
SQLException
- if a database access error occurs, this method is called on a closed connection or the given parameter is not aStatement
constant indicating whether auto-generated keys should be returned
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prepareStatement
public PreparedStatement prepareStatement(String sql, int[] columnIndexes) throws SQLException
Creates a defaultPreparedStatement
object capable of returning the auto-generated keys designated by the given array. This array contains the indexes of the columns in the target table that contain the auto-generated keys that should be made available. The driver will ignore the array if the SQL statement is not anINSERT
statement, or an SQL statement able to return auto-generated keys (the list of such statements is vendor-specific).An SQL statement with or without IN parameters can be pre-compiled and stored in a
PreparedStatement
object. This object can then be used to efficiently execute this statement multiple times.Note: This method is optimized for handling parametric SQL statements that benefit from precompilation. If the driver supports precompilation, the method
prepareStatement
will send the statement to the database for precompilation. Some drivers may not support precompilation. In this case, the statement may not be sent to the database until thePreparedStatement
object is executed. This has no direct effect on users; however, it does affect which methods throw certain SQLExceptions.Result sets created using the returned
PreparedStatement
object will by default be typeTYPE_FORWARD_ONLY
and have a concurrency level ofCONCUR_READ_ONLY
. The holdability of the created result sets can be determined by callinggetHoldability()
.- Specified by:
prepareStatement
in interfaceConnection
- Parameters:
sql
- an SQL statement that may contain one or more '?' IN parameter placeholderscolumnIndexes
- an array of column indexes indicating the columns that should be returned from the inserted row or rows- Returns:
- a new
PreparedStatement
object, containing the pre-compiled statement, that is capable of returning the auto-generated keys designated by the given array of column indexes - Throws:
SQLException
- if a database access error occurs or this method is called on a closed connection
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prepareStatement
public PreparedStatement prepareStatement(String sql, String[] columnNames) throws SQLException
Creates a defaultPreparedStatement
object capable of returning the auto-generated keys designated by the given array. This array contains the names of the columns in the target table that contain the auto-generated keys that should be returned. The driver will ignore the array if the SQL statement is not anINSERT
statement, or an SQL statement able to return auto-generated keys (the list of such statements is vendor-specific).An SQL statement with or without IN parameters can be pre-compiled and stored in a
PreparedStatement
object. This object can then be used to efficiently execute this statement multiple times.Note: This method is optimized for handling parametric SQL statements that benefit from precompilation. If the driver supports precompilation, the method
prepareStatement
will send the statement to the database for precompilation. Some drivers may not support precompilation. In this case, the statement may not be sent to the database until thePreparedStatement
object is executed. This has no direct effect on users; however, it does affect which methods throw certain SQLExceptions.Result sets created using the returned
PreparedStatement
object will by default be typeTYPE_FORWARD_ONLY
and have a concurrency level ofCONCUR_READ_ONLY
. The holdability of the created result sets can be determined by callinggetHoldability()
.- Specified by:
prepareStatement
in interfaceConnection
- Parameters:
sql
- an SQL statement that may contain one or more '?' IN parameter placeholderscolumnNames
- an array of column names indicating the columns that should be returned from the inserted row or rows- Returns:
- a new
PreparedStatement
object, containing the pre-compiled statement, that is capable of returning the auto-generated keys designated by the given array of column names - Throws:
SQLException
- if a database access error occurs or this method is called on a closed connection
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getInternalParameterMetaData
public CallableParameterMetaData getInternalParameterMetaData(String procedureName, String databaseName, boolean isFunction) throws SQLException
- Throws:
SQLException
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prepareCall
public CallableStatement prepareCall(String sql) throws SQLException
Creates aCallableStatement
object for calling database stored procedures. TheCallableStatement
object provides methods for setting up its IN and OUT parameters, and methods for executing the call to a stored procedure. example : {?= call <procedure-name>[(<arg1>,<arg2>, ...)]} or {call <procedure-name>[(<arg1>,<arg2>, ...)]}Note: This method is optimized for handling stored procedure call statements.
- Specified by:
prepareCall
in interfaceConnection
- Parameters:
sql
- an SQL statement that may contain one or more '?' parameter placeholders. Typically this statement is specified using JDBC call escape syntax.- Returns:
- a new default
CallableStatement
object containing the pre-compiled SQL statement - Throws:
SQLException
- if a database access error occurs or this method is called on a closed connection
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prepareCall
public CallableStatement prepareCall(String sql, int resultSetType, int resultSetConcurrency) throws SQLException
Creates aCallableStatement
object that will generateResultSet
objects with the given type and concurrency. This method is the same as theprepareCall
method above, but it allows the default result set type and concurrency to be overridden. The holdability of the created result sets can be determined by callinggetHoldability()
.- Specified by:
prepareCall
in interfaceConnection
- Parameters:
sql
- aString
object that is the SQL statement to be sent to the database; may contain on or more '?' parametersresultSetType
- a result set type; one ofResultSet.TYPE_FORWARD_ONLY
,ResultSet.TYPE_SCROLL_INSENSITIVE
, orResultSet.TYPE_SCROLL_SENSITIVE
resultSetConcurrency
- a concurrency type; one ofResultSet.CONCUR_READ_ONLY
orResultSet.CONCUR_UPDATABLE
- Returns:
- a new
CallableStatement
object containing the pre-compiled SQL statement that will produceResultSet
objects with the given type and concurrency - Throws:
SQLException
- if a database access error occurs, this method is called on a closed connection or the given parameters are notResultSet
constants indicating type and concurrency
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prepareCall
public CallableStatement prepareCall(String sql, int resultSetType, int resultSetConcurrency, int resultSetHoldability) throws SQLException
Creates aCallableStatement
object that will generateResultSet
objects with the given type and concurrency. This method is the same as theprepareCall
method above, but it allows the default result set type, result set concurrency type and holdability to be overridden.- Specified by:
prepareCall
in interfaceConnection
- Parameters:
sql
- aString
object that is the SQL statement to be sent to the database; may contain on or more '?' parametersresultSetType
- one of the followingResultSet
constants:ResultSet.TYPE_FORWARD_ONLY
,ResultSet.TYPE_SCROLL_INSENSITIVE
, orResultSet.TYPE_SCROLL_SENSITIVE
resultSetConcurrency
- one of the followingResultSet
constants:ResultSet.CONCUR_READ_ONLY
orResultSet.CONCUR_UPDATABLE
resultSetHoldability
- one of the followingResultSet
constants:ResultSet.HOLD_CURSORS_OVER_COMMIT
orResultSet.CLOSE_CURSORS_AT_COMMIT
- Returns:
- a new
CallableStatement
object, containing the pre-compiled SQL statement, that will generateResultSet
objects with the given type, concurrency, and holdability - Throws:
SQLException
- if a database access error occurs, this method is called on a closed connection or the given parameters are notResultSet
constants indicating type, concurrency, and holdability- See Also:
ResultSet
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nativeSQL
public String nativeSQL(String sql) throws SQLException
- Specified by:
nativeSQL
in interfaceConnection
- Throws:
SQLException
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getAutoCommit
public boolean getAutoCommit() throws SQLException
returns true if statements on this connection are auto committed.- Specified by:
getAutoCommit
in interfaceConnection
- Returns:
- true if auto commit is on.
- Throws:
SQLException
- if there is an error
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setAutoCommit
public void setAutoCommit(boolean autoCommit) throws SQLException
Sets whether this connection is auto committed.- Specified by:
setAutoCommit
in interfaceConnection
- Parameters:
autoCommit
- if it should be auto committed.- Throws:
SQLException
- if something goes wrong talking to the server.
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commit
public void commit() throws SQLException
Sends commit to the server.- Specified by:
commit
in interfaceConnection
- Throws:
SQLException
- if there is an error committing.
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rollback
public void rollback() throws SQLException
Rolls back a transaction.- Specified by:
rollback
in interfaceConnection
- Throws:
SQLException
- if there is an error rolling back.
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rollback
public void rollback(Savepoint savepoint) throws SQLException
Undoes all changes made after the givenSavepoint
object was set.This method should be used only when auto-commit has been disabled.
- Specified by:
rollback
in interfaceConnection
- Parameters:
savepoint
- theSavepoint
object to roll back to- Throws:
SQLException
- if a database access error occurs, this method is called while participating in a distributed transaction, this method is called on a closed connection, theSavepoint
object is no longer valid, or thisConnection
object is currently in auto-commit mode- See Also:
Savepoint
,rollback()
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close
public void close() throws SQLException
close the connection.- Specified by:
close
in interfaceAutoCloseable
- Specified by:
close
in interfaceConnection
- Throws:
SQLException
- if there is a problem talking to the server.
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isClosed
public boolean isClosed()
checks if the connection is closed.- Specified by:
isClosed
in interfaceConnection
- Returns:
- true if the connection is closed
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getMetaData
public DatabaseMetaData getMetaData()
returns the meta data about the database.- Specified by:
getMetaData
in interfaceConnection
- Returns:
- meta data about the db.
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isReadOnly
public boolean isReadOnly() throws SQLException
Retrieves whether thisConnection
object is in read-only mode.- Specified by:
isReadOnly
in interfaceConnection
- Returns:
true
if thisConnection
object is read-only;false
otherwise- Throws:
SQLException
- SQLException if a database access error occurs or this method is called on a closed connection
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setReadOnly
public void setReadOnly(boolean readOnly) throws SQLException
Sets whether this connection is read only.- Specified by:
setReadOnly
in interfaceConnection
- Parameters:
readOnly
- true if it should be read only.- Throws:
SQLException
- if there is a problem
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getCatalog
public String getCatalog() throws SQLException
Retrieves thisConnection
object's current catalog name.- Specified by:
getCatalog
in interfaceConnection
- Returns:
- the current catalog name or
null
if there is none - Throws:
SQLException
- if a database access error occurs or this method is called on a closed connection- See Also:
setCatalog(java.lang.String)
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setCatalog
public void setCatalog(String catalog) throws SQLException
Sets the given catalog name in order to select a subspace of thisConnection
object's database in which to work.If the driver does not support catalogs, it will silently ignore this request. MariaDB treats catalogs and databases as equivalent
- Specified by:
setCatalog
in interfaceConnection
- Parameters:
catalog
- the name of a catalog (subspace in thisConnection
object's database) in which to work- Throws:
SQLException
- if a database access error occurs or this method is called on a closed connection- See Also:
getCatalog()
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isServerMariaDb
public boolean isServerMariaDb() throws SQLException
- Throws:
SQLException
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versionGreaterOrEqual
public boolean versionGreaterOrEqual(int major, int minor, int patch)
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getTransactionIsolation
public int getTransactionIsolation() throws SQLException
Retrieves thisConnection
object's current transaction isolation level.- Specified by:
getTransactionIsolation
in interfaceConnection
- Returns:
- the current transaction isolation level, which will be one of the following constants:
Connection.TRANSACTION_READ_UNCOMMITTED
,Connection.TRANSACTION_READ_COMMITTED
,Connection.TRANSACTION_REPEATABLE_READ
,Connection.TRANSACTION_SERIALIZABLE
, orConnection.TRANSACTION_NONE
. - Throws:
SQLException
- if a database access error occurs or this method is called on a closed connection- See Also:
setTransactionIsolation(int)
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setTransactionIsolation
public void setTransactionIsolation(int level) throws SQLException
Attempts to change the transaction isolation level for thisConnection
object to the one given. The constants defined in the interfaceConnection
are the possible transaction isolation levels.Note: If this method is called during a transaction, the result is implementation-defined.
- Specified by:
setTransactionIsolation
in interfaceConnection
- Parameters:
level
- one of the followingConnection
constants:Connection.TRANSACTION_READ_UNCOMMITTED
,Connection.TRANSACTION_READ_COMMITTED
,Connection.TRANSACTION_REPEATABLE_READ
, orConnection.TRANSACTION_SERIALIZABLE
. (Note thatConnection.TRANSACTION_NONE
cannot be used because it specifies that transactions are not supported.)- Throws:
SQLException
- if a database access error occurs, this method is called on a closed connection or the given parameter is not one of theConnection
constants- See Also:
DatabaseMetaData.supportsTransactionIsolationLevel(int)
,getTransactionIsolation()
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getWarnings
public SQLWarning getWarnings() throws SQLException
Retrieves the first warning reported by calls on thisConnection
object. If there is more than one warning, subsequent warnings will be chained to the first one and can be retrieved by calling the methodSQLWarning.getNextWarning
on the warning that was retrieved previously.This method may not be called on a closed connection; doing so will cause an
SQLException
to be thrown.Note: Subsequent warnings will be chained to this SQLWarning.
- Specified by:
getWarnings
in interfaceConnection
- Returns:
- the first
SQLWarning
object ornull
if there are none - Throws:
SQLException
- if a database access error occurs or this method is called on a closed connection- See Also:
SQLWarning
-
clearWarnings
public void clearWarnings() throws SQLException
Clears all warnings reported for thisConnection
object. After a call to this method, the methodgetWarnings
returnsnull
until a new warning is reported for thisConnection
object.- Specified by:
clearWarnings
in interfaceConnection
- Throws:
SQLException
- SQLException if a database access error occurs or this method is called on a closed connection
-
reenableWarnings
public void reenableWarnings()
Re-enable warnings, when next statement is executed.
-
getTypeMap
public Map<String,Class<?>> getTypeMap()
Retrieves theMap
object associated with thisConnection
object. Unless the application has added an entry, the type map returned will be empty.- Specified by:
getTypeMap
in interfaceConnection
- Returns:
- the
java.util.Map
object associated with thisConnection
object - Since:
- 1.2
- See Also:
setTypeMap(java.util.Map<java.lang.String, java.lang.Class<?>>)
-
setTypeMap
public void setTypeMap(Map<String,Class<?>> map) throws SQLException
Installs the givenTypeMap
object as the type map for thisConnection
object. The type map will be used for the custom mapping of SQL structured types and distinct types.- Specified by:
setTypeMap
in interfaceConnection
- Parameters:
map
- thejava.util.Map
object to install as the replacement for thisConnection
object's default type map- Throws:
SQLException
- if a database access error occurs, this method is called on a closed connection or the given parameter is not ajava.util.Map
object- See Also:
getTypeMap()
-
getHoldability
public int getHoldability()
Retrieves the current holdability ofResultSet
objects created using thisConnection
object.- Specified by:
getHoldability
in interfaceConnection
- Returns:
- the holdability, one of
ResultSet.HOLD_CURSORS_OVER_COMMIT
orResultSet.CLOSE_CURSORS_AT_COMMIT
- Since:
- 1.4
- See Also:
setHoldability(int)
,DatabaseMetaData.getResultSetHoldability()
,ResultSet
-
setHoldability
public void setHoldability(int holdability)
Changes the default holdability ofResultSet
objects created using thisConnection
object to the given holdability. The default holdability ofResultSet
objects can be be determined by invokingDatabaseMetaData.getResultSetHoldability()
.- Specified by:
setHoldability
in interfaceConnection
- Parameters:
holdability
- aResultSet
holdability constant; one ofResultSet.HOLD_CURSORS_OVER_COMMIT
orResultSet.CLOSE_CURSORS_AT_COMMIT
- See Also:
getHoldability()
,DatabaseMetaData.getResultSetHoldability()
,ResultSet
-
setSavepoint
public Savepoint setSavepoint() throws SQLException
Creates an unnamed savepoint in the current transaction and returns the newSavepoint *
object that represents it.if setSavepoint is invoked outside of an active transaction, a transaction will be started at this newly created savepoint.
- Specified by:
setSavepoint
in interfaceConnection
- Returns:
- the new
Savepoint
object - Throws:
SQLException
- if a database access error occurs, this method is called while participating in a distributed transaction, this method is called on a closed connection or thisConnection
object is currently in auto-commit mode- Since:
- 1.4
- See Also:
Savepoint
-
setSavepoint
public Savepoint setSavepoint(String name) throws SQLException
Creates a savepoint with the given name in the current transaction and returns the newSavepoint
object that represents it. if setSavepoint is invoked outside of an active transaction, a transaction will be started at this newly created savepoint.- Specified by:
setSavepoint
in interfaceConnection
- Parameters:
name
- aString
containing the name of the savepoint- Returns:
- the new
Savepoint
object - Throws:
SQLException
- if a database access error occurs, this method is called while participating in a distributed transaction, this method is called on a closed connection or thisConnection
object is currently in auto-commit mode- Since:
- 1.4
- See Also:
Savepoint
-
releaseSavepoint
public void releaseSavepoint(Savepoint savepoint) throws SQLException
Removes the specifiedSavepoint
and subsequentSavepoint
objects from the current transaction. Any reference to the savepoint after it have been removed will cause anSQLException
to be thrown.- Specified by:
releaseSavepoint
in interfaceConnection
- Parameters:
savepoint
- theSavepoint
object to be removed- Throws:
SQLException
- if a database access error occurs, this method is called on a closed connection or the givenSavepoint
object is not a valid savepoint in the current transaction
-
createClob
public Clob createClob()
Constructs an object that implements theClob
interface. The object returned initially contains no data. ThesetAsciiStream
,setCharacterStream
andsetString
methods of theClob
interface may be used to add data to theClob
.- Specified by:
createClob
in interfaceConnection
- Returns:
- An object that implements the
Clob
interface
-
createBlob
public Blob createBlob()
Constructs an object that implements theBlob
interface. The object returned initially contains no data. ThesetBinaryStream
andsetBytes
methods of theBlob
interface may be used to add data to theBlob
.- Specified by:
createBlob
in interfaceConnection
- Returns:
- An object that implements the
Blob
interface
-
createNClob
public NClob createNClob()
Constructs an object that implements theNClob
interface. The object returned initially contains no data. ThesetAsciiStream
,setCharacterStream
andsetString
methods of theNClob
interface may be used to add data to theNClob
.- Specified by:
createNClob
in interfaceConnection
- Returns:
- An object that implements the
NClob
interface
-
createSQLXML
public SQLXML createSQLXML() throws SQLException
Constructs an object that implements theSQLXML
interface. The object returned initially contains no data. ThecreateXmlStreamWriter
object andsetString
method of theSQLXML
interface may be used to add data to theSQLXML
object.- Specified by:
createSQLXML
in interfaceConnection
- Returns:
- An object that implements the
SQLXML
interface - Throws:
SQLException
- if an object that implements theSQLXML
interface can not be constructed, this method is called on a closed connection or a database access error occurs.
-
isValid
public boolean isValid(int timeout) throws SQLException
Returns true if the connection has not been closed and is still valid. The driver shall submit a query on the connection or use some other mechanism that positively verifies the connection is still valid when this method is called.The query submitted by the driver to validate the connection shall be executed in the context of the current transaction.
- Specified by:
isValid
in interfaceConnection
- Parameters:
timeout
- - The time in seconds to wait for the database operation used to validate the connection to complete. If the timeout period expires before the operation completes, this method returns false. A value of 0 indicates a timeout is not applied to the database operation.- Returns:
- true if the connection is valid, false otherwise
- Throws:
SQLException
- if the value supplied fortimeout
is less then 0- Since:
- 1.6
- See Also:
DatabaseMetaData.getClientInfoProperties()
-
setClientInfo
public void setClientInfo(String name, String value) throws SQLClientInfoException
Sets the value of the client info property specified by name to the value specified by value.Applications may use the
DatabaseMetaData.getClientInfoProperties
method to determine the client info properties supported by the driver and the maximum length that may be specified for each property.The driver stores the value specified in a suitable location in the database. For example in a special register, session parameter, or system table column. For efficiency the driver may defer setting the value in the database until the next time a statement is executed or prepared. Other than storing the client information in the appropriate place in the database, these methods shall not alter the behavior of the connection in anyway. The values supplied to these methods are used for accounting, diagnostics and debugging purposes only.
The driver shall generate a warning if the client info name specified is not recognized by the driver.
If the value specified to this method is greater than the maximum length for the property the driver may either truncate the value and generate a warning or generate a
SQLClientInfoException
. If the driver generates aSQLClientInfoException
, the value specified was not set on the connection.The following are standard client info properties. Drivers are not required to support these properties however if the driver supports a client info property that can be described by one of the standard properties, the standard property name should be used.
- ApplicationName - The name of the application currently utilizing the connection
- ClientUser - The name of the user that the application using the connection is performing work for. This may not be the same as the user name that was used in establishing the connection.
- ClientHostname - The hostname of the computer the application using the connection is running on.
- Specified by:
setClientInfo
in interfaceConnection
- Parameters:
name
- The name of the client info property to setvalue
- The value to set the client info property to. If the value is null, the current value of the specified property is cleared.- Throws:
SQLClientInfoException
- if the database server returns an error while setting the client info value on the database server or this method is called on a closed connection- Since:
- 1.6
-
getClientInfo
public Properties getClientInfo() throws SQLException
Returns a list containing the name and current value of each client info property supported by the driver. The value of a client info property may be null if the property has not been set and does not have a default value.- Specified by:
getClientInfo
in interfaceConnection
- Returns:
- A
Properties
object that contains the name and current value of each of the client info properties supported by the driver. - Throws:
SQLException
- if the database server returns an error when fetching the client info values from the database or this method is called on a closed connection
-
setClientInfo
public void setClientInfo(Properties properties) throws SQLClientInfoException
Sets the value of the connection's client info properties. TheProperties
object contains the names and values of the client info properties to be set. The set of client info properties contained in the properties list replaces the current set of client info properties on the connection. If a property that is currently set on the connection is not present in the properties list, that property is cleared. Specifying an empty properties list will clear all of the properties on the connection. SeesetClientInfo (String, String)
for more information.If an error occurs in setting any of the client info properties, a
SQLClientInfoException
is thrown. TheSQLClientInfoException
contains information indicating which client info properties were not set. The state of the client information is unknown because some databases do not allow multiple client info properties to be set atomically. For those databases, one or more properties may have been set before the error occurred.- Specified by:
setClientInfo
in interfaceConnection
- Parameters:
properties
- the list of client info properties to set- Throws:
SQLClientInfoException
- if the database server returns an error while setting the clientInfo values on the database server or this method is called on a closed connection- Since:
- 1.6
- See Also:
setClientInfo(String, String)
-
getClientInfo
public String getClientInfo(String name) throws SQLException
Returns the value of the client info property specified by name. This method may return null if the specified client info property has not been set and does not have a default value. This method will also return null if the specified client info property name is not supported by the driver. Applications may use theDatabaseMetaData.getClientInfoProperties
method to determine the client info properties supported by the driver.- Specified by:
getClientInfo
in interfaceConnection
- Parameters:
name
- The name of the client info property to retrieve- Returns:
- The value of the client info property specified
- Throws:
SQLException
- if the database server returns an error when fetching the client info value from the database or this method is called on a closed connection- Since:
- 1.6
- See Also:
DatabaseMetaData.getClientInfoProperties()
-
createArrayOf
public Array createArrayOf(String typeName, Object[] elements) throws SQLException
Factory method for creating Array objects. Note: WhencreateArrayOf
is used to create an array object that maps to a primitive data type, then it is implementation-defined whether theArray
object is an array of that primitive data type or an array ofObject
. Note: The JDBC driver is responsible for mapping the elementsObject
array to the default JDBC SQL type defined in java.sql.Types for the given class ofObject
. The default mapping is specified in Appendix B of the JDBC specification. If the resulting JDBC type is not the appropriate type for the given typeName then it is implementation defined whether anSQLException
is thrown or the driver supports the resulting conversion.- Specified by:
createArrayOf
in interfaceConnection
- Parameters:
typeName
- the SQL name of the type the elements of the array map to. The typeName is a database-specific name which may be the name of a built-in type, a user-defined type or a standard SQL type supported by this database. This is the value returned byArray.getBaseTypeName
elements
- the elements that populate the returned object- Returns:
- an Array object whose elements map to the specified SQL type
- Throws:
SQLException
- if a database error occurs, the JDBC type is not appropriate for the typeName and the conversion is not supported, the typeName is null or this method is called on a closed connection
-
createStruct
public Struct createStruct(String typeName, Object[] attributes) throws SQLException
Factory method for creating Struct objects.- Specified by:
createStruct
in interfaceConnection
- Parameters:
typeName
- the SQL type name of the SQL structured type that thisStruct
object maps to. The typeName is the name of a user-defined type that has been defined for this database. It is the value returned byStruct.getSQLTypeName
.attributes
- the attributes that populate the returned object- Returns:
- a Struct object that maps to the given SQL type and is populated with the given attributes
- Throws:
SQLException
- if a database error occurs, the typeName is null or this method is called on a closed connection
-
unwrap
public <T> T unwrap(Class<T> iface) throws SQLException
Returns an object that implements the given interface to allow access to non-standard methods, or standard methods not exposed by the proxy. If the receiver implements the interface then the result is the receiver or a proxy for the receiver. If the receiver is a wrapper and the wrapped object implements the interface then the result is the wrapped object or a proxy for the wrapped object. Otherwise return the the result of callingunwrap
recursively on the wrapped object or a proxy for that result. If the receiver is not a wrapper and does not implement the interface, then anSQLException
is thrown.- Specified by:
unwrap
in interfaceWrapper
- Parameters:
iface
- A Class defining an interface that the result must implement.- Returns:
- an object that implements the interface. May be a proxy for the actual implementing object.
- Throws:
SQLException
- If no object found that implements the interface- Since:
- 1.6
-
isWrapperFor
public boolean isWrapperFor(Class<?> iface)
Returns true if this either implements the interface argument or is directly or indirectly a wrapper for an object that does. Returns false otherwise. If this implements the interface then return true, else if this is a wrapper then return the result of recursively callingisWrapperFor
on the wrapped object. If this does not implement the interface and is not a wrapper, return false. This method should be implemented as a low-cost operation compared tounwrap
so that callers can use this method to avoid expensiveunwrap
calls that may fail. If this method returns true then callingunwrap
with the same argument should succeed.- Specified by:
isWrapperFor
in interfaceWrapper
- Parameters:
iface
- a Class defining an interface.- Returns:
- true if this implements the interface or directly or indirectly wraps an object that does.
- Since:
- 1.6
-
getUsername
@Deprecated public String getUsername()
Deprecated.returns the username for the connection.- Returns:
- the username.
-
getHostname
@Deprecated public String getHostname()
Deprecated.returns the hostname for the connection.- Returns:
- the hostname.
-
getPort
@Deprecated public int getPort()
Deprecated.returns the port for the connection.- Returns:
- the port
-
getPinGlobalTxToPhysicalConnection
protected boolean getPinGlobalTxToPhysicalConnection()
-
setHostFailed
public void setHostFailed()
If failover is not activated, will close connection when a connection error occur.
-
getLowercaseTableNames
public int getLowercaseTableNames() throws SQLException
Are table case sensitive or not . Default Value: 0 (Unix), 1 (Windows), 2 (Mac OS X). If set to 0 (the default on Unix-based systems), table names and aliases and database names are compared in a case-sensitive manner. If set to 1 (the default on Windows), names are stored in lowercase and not compared in a case-sensitive manner. If set to 2 (the default on Mac OS X), names are stored as declared, but compared in lowercase.- Returns:
- int value.
- Throws:
SQLException
- if a connection error occur
-
abort
public void abort(Executor executor) throws SQLException
Abort connection.- Specified by:
abort
in interfaceConnection
- Parameters:
executor
- executor- Throws:
SQLException
- if security manager doesn't permit it.
-
getNetworkTimeout
public int getNetworkTimeout() throws SQLException
Get network timeout.- Specified by:
getNetworkTimeout
in interfaceConnection
- Returns:
- timeout
- Throws:
SQLException
- if database socket error occur
-
getSchema
public String getSchema()
- Specified by:
getSchema
in interfaceConnection
-
setSchema
public void setSchema(String arg0)
- Specified by:
setSchema
in interfaceConnection
-
setNetworkTimeout
public void setNetworkTimeout(Executor executor, int milliseconds) throws SQLException
Change network timeout.- Specified by:
setNetworkTimeout
in interfaceConnection
- Parameters:
executor
- executor (can be null)milliseconds
- network timeout in milliseconds.- Throws:
SQLException
- if security manager doesn't permit it.
-
getServerThreadId
public long getServerThreadId()
-
canUseServerTimeout
public boolean canUseServerTimeout()
-
setDefaultTransactionIsolation
public void setDefaultTransactionIsolation(int defaultTransactionIsolation)
-
reset
public void reset() throws SQLException
Reset connection set has it was after creating a "fresh" new connection. defaultTransactionIsolation must have been initialized.BUT : - session variable state are reset only if option useResetConnection is set and - if using the option "useServerPrepStmts", PREPARE statement are still prepared
- Throws:
SQLException
- if resetting operation failed
-
includeDeadLockInfo
public boolean includeDeadLockInfo()
-
includeThreadsTraces
public boolean includeThreadsTraces()
-
__test_host
public HostAddress __test_host()
-
-