public final class MariaDbConnection extends Object implements Connection
Modifier and Type | Field and Description |
---|---|
protected CallableStatementCache |
callableStatementCache |
ReentrantLock |
lock |
MariaDbPooledConnection |
pooledConnection |
Pattern |
requestWithoutComments |
TRANSACTION_NONE, TRANSACTION_READ_COMMITTED, TRANSACTION_READ_UNCOMMITTED, TRANSACTION_REPEATABLE_READ, TRANSACTION_SERIALIZABLE
Modifier and Type | Method and Description |
---|---|
void |
abort(Executor executor)
Abort connection.
|
void |
clearWarnings()
Clears all warnings reported for this
Connection object. |
protected MariaDbClientPreparedStatement |
clientPrepareStatement(String sql)
creates 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 the
Blob interface. |
Clob |
createClob()
Constructs an object that implements the
Clob interface. |
NClob |
createNClob()
Constructs an object that implements the
NClob interface. |
SQLXML |
createSQLXML()
Constructs an object that implements the
SQLXML interface. |
Statement |
createStatement()
creates a new statement.
|
Statement |
createStatement(int resultSetScrollType,
int resultSetConcurrency)
Creates a
Statement object that will generate ResultSet objects with the given type and concurrency. |
Statement |
createStatement(int resultSetScrollType,
int resultSetConcurrency,
int resultSetHoldability)
Creates a
Statement object that will generate ResultSet 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 commited.
|
String |
getCatalog()
Retrieves this
Connection 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.
|
String |
getDatabase()
returns the database.
|
int |
getHoldability()
Retrieves the current holdability of
ResultSet objects created using this Connection object. |
String |
getHostname()
returns the hostname for the connection.
|
int |
getLowercaseTableNames()
Are table case sensitive or not .
|
DatabaseMetaData |
getMetaData()
returns the meta data about the database.
|
int |
getNetworkTimeout()
Get network timeout.
|
protected Options |
getOptions() |
String |
getPassword()
returns the password for the connection.
|
protected boolean |
getPinGlobalTxToPhysicalConnection() |
int |
getPort()
returns the port for the connection.
|
String |
getSchema() |
protected String |
getServerTimezone() |
int |
getTransactionIsolation()
Retrieves this
Connection object's current transaction isolation level. |
Map<String,Class<?>> |
getTypeMap()
Retrieves the
Map object associated with this Connection object. |
String |
getUsername()
returns the username for the connection.
|
SQLWarning |
getWarnings()
Retrieves the first warning reported by calls on this
Connection object. |
PreparedStatement |
internalPrepareStatement(String sql,
int resultSetScrollType)
Send ServerPrepareStatement or ClientPrepareStatement depending on SQL query and options
|
boolean |
isClosed()
checks if the connection is closed.
|
boolean |
isReadOnly()
Retrieves whether this
Connection object is in read-only mode. |
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(Protocol protocol,
ReentrantLock lock) |
CallableStatement |
prepareCall(String sql)
Creates a
CallableStatement object for calling
database stored procedures. |
CallableStatement |
prepareCall(String sql,
int resultSetType,
int resultSetConcurrency)
Creates a
CallableStatement object that will generate ResultSet objects with the given type and concurrency. |
CallableStatement |
prepareCall(String sql,
int resultSetType,
int resultSetConcurrency,
int resultSetHoldability)
Creates a
CallableStatement object that will generate ResultSet objects with the given type and concurrency. |
PreparedStatement |
prepareStatement(String sql)
creates a new prepared statement.
|
PreparedStatement |
prepareStatement(String sql,
int autoGeneratedKeys)
Creates a default
PreparedStatement object that has the capability to retrieve auto-generated keys. |
PreparedStatement |
prepareStatement(String sql,
int[] columnIndexes)
Creates a default
PreparedStatement object capable of returning the auto-generated keys designated by the given array. |
PreparedStatement |
prepareStatement(String sql,
int resultSetType,
int resultSetConcurrency)
Creates a
PreparedStatement object that will generate ResultSet objects with the given type and concurrency. |
PreparedStatement |
prepareStatement(String sql,
int resultSetType,
int resultSetConcurrency,
int resultSetHoldability)
Creates a
PreparedStatement object that will generate ResultSet objects with the given type, concurrency, and
holdability. |
PreparedStatement |
prepareStatement(String sql,
String[] columnNames)
Creates a default
PreparedStatement object capable of returning the auto-generated keys designated by the given array. |
static String |
quoteIdentifier(String string) |
void |
reenableWarnings()
Reenable warnings, when next statement is executed.
|
void |
releaseSavepoint(Savepoint savepoint)
Removes the specified
Savepoint and subsequent Savepoint objects from the current transaction. |
void |
rollback()
Rolls back a transaction.
|
void |
rollback(Savepoint savepoint)
Undoes all changes made after the given
Savepoint object was set. |
void |
setAutoCommit(boolean autoCommit)
Sets whether this connection is auto commited.
|
void |
setCatalog(String catalog)
Sets the given catalog name in order to select a subspace of this
Connection object's database in which to work. |
void |
setClientInfo(Properties properties)
Sets the value of the connection's client info properties.
|
void |
setClientInfo(String name,
String value)
Sets the value of the client info property specified by name to the value specified by value.
|
void |
setHoldability(int holdability)
Changes the default holdability of
ResultSet objects created using this Connection 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 new
Savepoint object that represents it. |
Savepoint |
setSavepoint(String name)
Creates a savepoint with the given name in the current transaction and returns the new
Savepoint object that represents it. |
void |
setSchema(String arg0) |
void |
setTransactionIsolation(int level)
Attempts to change the transaction isolation level for this
Connection object to the one given. |
void |
setTypeMap(Map<String,Class<?>> map)
Installs the given
TypeMap object as the type map for this Connection 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.
|
public final ReentrantLock lock
public Pattern requestWithoutComments
protected CallableStatementCache callableStatementCache
public MariaDbPooledConnection pooledConnection
public static MariaDbConnection newConnection(Protocol protocol, ReentrantLock lock) throws SQLException
SQLException
@Deprecated public static String unquoteIdentifier(String string)
string
- valuepublic Statement createStatement() throws SQLException
createStatement
in interface Connection
SQLException
- if we cannot create the statement.public Statement createStatement(int resultSetScrollType, int resultSetConcurrency) throws SQLException
Statement
object that will generate ResultSet
objects with the given type and concurrency. This method is
the same as the createStatement
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 calling getHoldability()
.createStatement
in interface Connection
resultSetScrollType
- a result set type; one of ResultSet.TYPE_FORWARD_ONLY
, ResultSet.TYPE_SCROLL_INSENSITIVE
, or ResultSet.TYPE_SCROLL_SENSITIVE
resultSetConcurrency
- a concurrency type; one of ResultSet.CONCUR_READ_ONLY
or ResultSet.CONCUR_UPDATABLE
Statement
object that will generate ResultSet
objects with the given type and concurrencySQLException
- if a database access error occurs, this method is called on a closed connection or the given parameters are not
ResultSet
constants indicating type and concurrencypublic Statement createStatement(int resultSetScrollType, int resultSetConcurrency, int resultSetHoldability) throws SQLException
Statement
object that will generate ResultSet
objects with the given type, concurrency, and holdability.
This method is the same as the createStatement
method above, but it allows the default result set type, concurrency, and
holdability to be overridden.createStatement
in interface Connection
resultSetScrollType
- one of the following ResultSet
constants: ResultSet.TYPE_FORWARD_ONLY
,
ResultSet.TYPE_SCROLL_INSENSITIVE
, or ResultSet.TYPE_SCROLL_SENSITIVE
resultSetConcurrency
- one of the following ResultSet
constants: ResultSet.CONCUR_READ_ONLY
or
ResultSet.CONCUR_UPDATABLE
resultSetHoldability
- one of the following ResultSet
constants: ResultSet.HOLD_CURSORS_OVER_COMMIT
or
ResultSet.CLOSE_CURSORS_AT_COMMIT
Statement
object that will generate ResultSet
objects with the given type, concurrency, and holdabilitySQLException
- if a database access error occurs, this method is called on a closed connection or the given parameters are not
ResultSet
constants indicating type, concurrency, and holdabilitySQLFeatureNotSupportedException
- if the JDBC driver does not support this method or this method is not supported for the
specified result set type, result set holdability and result set concurrency.ResultSet
protected MariaDbClientPreparedStatement clientPrepareStatement(String sql) throws SQLException
sql
- the query.SQLException
- if there is a problem preparing the statement.public PreparedStatement prepareStatement(String sql) throws SQLException
prepareStatement
in interface Connection
sql
- the query.SQLException
- if there is a problem preparing the statement.public PreparedStatement prepareStatement(String sql, int resultSetType, int resultSetConcurrency) throws SQLException
PreparedStatement
object that will generate ResultSet
objects with the given type and concurrency. This
method is the same as the prepareStatement
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 calling getHoldability()
.prepareStatement
in interface Connection
sql
- a String
object that is the SQL statement to be sent to the database; may contain one or more '?' IN parametersresultSetType
- a result set type; one of ResultSet.TYPE_FORWARD_ONLY
, ResultSet.TYPE_SCROLL_INSENSITIVE
, or
ResultSet.TYPE_SCROLL_SENSITIVE
resultSetConcurrency
- a concurrency type; one of ResultSet.CONCUR_READ_ONLY
or ResultSet.CONCUR_UPDATABLE
ResultSet
objects with the
given type and concurrencySQLException
- if a database access error occurs, this method is called on a closed connection or the given parameters are not
ResultSet
constants indicating type and concurrencypublic PreparedStatement prepareStatement(String sql, int resultSetType, int resultSetConcurrency, int resultSetHoldability) throws SQLException
Creates a PreparedStatement
object that will generate ResultSet
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.
prepareStatement
in interface Connection
sql
- a String
object that is the SQL statement to be sent to the database; may contain one or more '?' IN parametersresultSetType
- one of the following ResultSet
constants: ResultSet.TYPE_FORWARD_ONLY
,
ResultSet.TYPE_SCROLL_INSENSITIVE
, or ResultSet.TYPE_SCROLL_SENSITIVE
resultSetConcurrency
- one of the following ResultSet
constants: ResultSet.CONCUR_READ_ONLY
or
ResultSet.CONCUR_UPDATABLE
resultSetHoldability
- one of the following ResultSet
constants: ResultSet.HOLD_CURSORS_OVER_COMMIT
or
ResultSet.CLOSE_CURSORS_AT_COMMIT
PreparedStatement
object, containing the pre-compiled SQL statement, that will generate ResultSet
objects with the given type, concurrency, and holdabilitySQLException
- if a database access error occurs, this method is called on a closed connection or the given parameters are not
ResultSet
constants indicating type, concurrency, and holdabilitySQLFeatureNotSupportedException
- if the JDBC driver does not support this method or this method is not supported for the
specified result set type, result set holdability and result set concurrency.ResultSet
public PreparedStatement prepareStatement(String sql, int autoGeneratedKeys) throws SQLException
Creates a default PreparedStatement
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 an
INSERT
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 the PreparedStatement
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 type TYPE_FORWARD_ONLY
and
have a concurrency level of CONCUR_READ_ONLY
. The holdability of the created result sets can be determined by calling getHoldability()
.
prepareStatement
in interface Connection
sql
- an SQL statement that may contain one or more '?' IN parameter placeholdersautoGeneratedKeys
- a flag indicating whether auto-generated keys should be returned; one of Statement.RETURN_GENERATED_KEYS
or Statement.NO_GENERATED_KEYS
PreparedStatement
object, containing the pre-compiled SQL statement, that will have the capability of returning
auto-generated keysSQLException
- if a database access error occurs, this method is called on a closed connection or the given parameter is not a
Statement
constant indicating whether auto-generated keys should be returnedSQLFeatureNotSupportedException
- if the JDBC driver does not support this method with a constant of
Statement.RETURN_GENERATED_KEYSpublic PreparedStatement prepareStatement(String sql, int[] columnIndexes) throws SQLException
Creates a default PreparedStatement
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 an INSERT
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 the PreparedStatement
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 type TYPE_FORWARD_ONLY
and have a
concurrency level of CONCUR_READ_ONLY
. The holdability of the created result sets can be determined by calling getHoldability()
.
prepareStatement
in interface Connection
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 rowsPreparedStatement
object, containing the pre-compiled statement, that is capable of returning the auto-generated
keys designated by the given array of column indexesSQLException
- if a database access error occurs or this method is called on a closed connectionSQLFeatureNotSupportedException
- if the JDBC driver does not support this methodpublic PreparedStatement prepareStatement(String sql, String[] columnNames) throws SQLException
Creates a default PreparedStatement
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 an INSERT
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 the PreparedStatement
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 type TYPE_FORWARD_ONLY
and
have a concurrency level of CONCUR_READ_ONLY
. The holdability of the created result sets can be determined by calling getHoldability()
.
prepareStatement
in interface Connection
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 rowsPreparedStatement
object, containing the pre-compiled statement, that is capable of returning the auto-generated
keys designated by the given array of column namesSQLException
- if a database access error occurs or this method is called on a closed connectionSQLFeatureNotSupportedException
- if the JDBC driver does not support this methodpublic PreparedStatement internalPrepareStatement(String sql, int resultSetScrollType) throws SQLException
sql
- sql queryresultSetScrollType
- one of the following ResultSet
constants: ResultSet.TYPE_FORWARD_ONLY
,
ResultSet.TYPE_SCROLL_INSENSITIVE
, or ResultSet.TYPE_SCROLL_SENSITIVE
SQLException
- if a connection error occur during the server preparation.public CallableStatement prepareCall(String sql) throws SQLException
CallableStatement
object for calling
database stored procedures.
The CallableStatement
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.
prepareCall
in interface Connection
sql
- an SQL statement that may contain one or more '?'
parameter placeholders. Typically this statement is specified using JDBC
call escape syntax.CallableStatement
object containing the
pre-compiled SQL statementSQLException
- if a database access error occurs
or this method is called on a closed connectionpublic CallableStatement prepareCall(String sql, int resultSetType, int resultSetConcurrency) throws SQLException
CallableStatement
object that will generate ResultSet
objects with the given type and concurrency. This
method is the same as the prepareCall
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 calling getHoldability()
.prepareCall
in interface Connection
sql
- a String
object that is the SQL statement to be sent to the database; may contain on or more '?' parametersresultSetType
- a result set type; one of ResultSet.TYPE_FORWARD_ONLY
, ResultSet.TYPE_SCROLL_INSENSITIVE
, or
ResultSet.TYPE_SCROLL_SENSITIVE
resultSetConcurrency
- a concurrency type; one of ResultSet.CONCUR_READ_ONLY
or ResultSet.CONCUR_UPDATABLE
CallableStatement
object containing the pre-compiled SQL statement that will produce ResultSet
objects
with the given type and concurrencySQLException
- if a database access error occurs, this method is called on a closed connection or the given parameters are not
ResultSet
constants indicating type and concurrencySQLFeatureNotSupportedException
- if the JDBC driver does not support this method or this method is not supported for the
specified result set type and result set concurrency.public CallableStatement prepareCall(String sql, int resultSetType, int resultSetConcurrency, int resultSetHoldability) throws SQLException
CallableStatement
object that will generate ResultSet
objects with the given type and concurrency. This
method is the same as the prepareCall
method above, but it allows the default result set type, result set concurrency type and
holdability to be overridden.prepareCall
in interface Connection
sql
- a String
object that is the SQL statement to be sent to the database; may contain on or more '?' parametersresultSetType
- one of the following ResultSet
constants: ResultSet.TYPE_FORWARD_ONLY
,
ResultSet.TYPE_SCROLL_INSENSITIVE
, or ResultSet.TYPE_SCROLL_SENSITIVE
resultSetConcurrency
- one of the following ResultSet
constants: ResultSet.CONCUR_READ_ONLY
or
ResultSet.CONCUR_UPDATABLE
resultSetHoldability
- one of the following ResultSet
constants: ResultSet.HOLD_CURSORS_OVER_COMMIT
or
ResultSet.CLOSE_CURSORS_AT_COMMIT
CallableStatement
object, containing the pre-compiled SQL statement, that will generate ResultSet
objects with the given type, concurrency, and holdabilitySQLException
- if a database access error occurs, this method is called on a closed connection or the given parameters are not
ResultSet
constants indicating type, concurrency, and holdabilitySQLFeatureNotSupportedException
- if the JDBC driver does not support this method or this method is not supported for the
specified result set type, result set holdability and result set concurrency.ResultSet
public String nativeSQL(String sql) throws SQLException
nativeSQL
in interface Connection
SQLException
public boolean getAutoCommit() throws SQLException
getAutoCommit
in interface Connection
SQLException
- if there is an errorpublic void setAutoCommit(boolean autoCommit) throws SQLException
setAutoCommit
in interface Connection
autoCommit
- if it should be auto commited.SQLException
- if something goes wrong talking to the server.public void commit() throws SQLException
commit
in interface Connection
SQLException
- if there is an error commiting.public void rollback() throws SQLException
rollback
in interface Connection
SQLException
- if there is an error rolling back.public void rollback(Savepoint savepoint) throws SQLException
Undoes all changes made after the given Savepoint
object was set.
This method should be used only when auto-commit has been disabled.
rollback
in interface Connection
savepoint
- the Savepoint
object to roll back toSQLException
- if a database access error occurs, this method is called while participating in a distributed transaction, this
method is called on a closed connection, the Savepoint
object is no longer valid, or this Connection
object is
currently in auto-commit modeSQLFeatureNotSupportedException
- if the JDBC driver does not support this methodSavepoint
,
rollback()
public void close() throws SQLException
close
in interface AutoCloseable
close
in interface Connection
SQLException
- if there is a problem talking to the server.public boolean isClosed() throws SQLException
isClosed
in interface Connection
SQLException
- if the connection cannot be closed.public DatabaseMetaData getMetaData() throws SQLException
getMetaData
in interface Connection
SQLException
- if there is a problem creating the meta data.public boolean isReadOnly() throws SQLException
Connection
object is in read-only mode.isReadOnly
in interface Connection
true
if this Connection
object is read-only; false
otherwiseSQLException
- SQLException if a database access error occurs or this method is called on a closed connectionpublic void setReadOnly(boolean readOnly) throws SQLException
setReadOnly
in interface Connection
readOnly
- true if it should be read only.SQLException
- if there is a problempublic String getCatalog() throws SQLException
Retrieves this Connection
object's current catalog name.
getCatalog
in interface Connection
null
if there is noneSQLException
- if a database access error occurs or this method is called on a closed connectionsetCatalog(java.lang.String)
public void setCatalog(String catalog) throws SQLException
Sets the given catalog name in order to select a subspace of this Connection
object's database in which to work.
If the driver does not support catalogs, it will silently ignore this request.
MySQL treats catalogs and databases as equivalentsetCatalog
in interface Connection
catalog
- the name of a catalog (subspace in this Connection
object's database) in which to workSQLException
- if a database access error occurs or this method is called on a closed connectiongetCatalog()
public int getTransactionIsolation() throws SQLException
Connection
object's current transaction isolation level.getTransactionIsolation
in interface Connection
Connection.TRANSACTION_READ_UNCOMMITTED
,
Connection.TRANSACTION_READ_COMMITTED
, Connection.TRANSACTION_REPEATABLE_READ
,
Connection.TRANSACTION_SERIALIZABLE
, or Connection.TRANSACTION_NONE
.SQLException
- if a database access error occurs or this method is called on a closed connectionsetTransactionIsolation(int)
public void setTransactionIsolation(int level) throws SQLException
Attempts to change the transaction isolation level for this Connection
object to the one given. The constants defined in the
interface Connection
are the possible transaction isolation levels.
Note: If this method is called during a transaction, the result is implementation-defined.
setTransactionIsolation
in interface Connection
level
- one of the following Connection
constants: Connection.TRANSACTION_READ_UNCOMMITTED
,
Connection.TRANSACTION_READ_COMMITTED
, Connection.TRANSACTION_REPEATABLE_READ
, or
Connection.TRANSACTION_SERIALIZABLE
. (Note that Connection.TRANSACTION_NONE
cannot be used because it specifies that
transactions are not supported.)SQLException
- if a database access error occurs, this method is called on a closed connection or the given parameter is not one
of the Connection
constantsDatabaseMetaData.supportsTransactionIsolationLevel(int)
,
getTransactionIsolation()
public SQLWarning getWarnings() throws SQLException
Retrieves the first warning reported by calls on this Connection
object. If there is more than one warning, subsequent
warnings will be chained to the first one and can be retrieved by calling the method SQLWarning.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.
getWarnings
in interface Connection
SQLWarning
object or null
if there are noneSQLException
- if a database access error occurs or this method is called on a closed connectionSQLWarning
public void clearWarnings() throws SQLException
Connection
object. After a call to this method, the method getWarnings
returns
null
until a new warning is reported for this Connection
object.clearWarnings
in interface Connection
SQLException
- SQLException if a database access error occurs or this method is called on a closed connectionpublic void reenableWarnings()
public Map<String,Class<?>> getTypeMap() throws SQLException
Map
object associated with this Connection
object. Unless the application has added an entry, the type
map returned will be empty.getTypeMap
in interface Connection
java.util.Map
object associated with this Connection
objectSQLException
- if a database access error occurs or this method is called on a closed connectionSQLFeatureNotSupportedException
- if the JDBC driver does not support this methodsetTypeMap(java.util.Map<java.lang.String, java.lang.Class<?>>)
public void setTypeMap(Map<String,Class<?>> map) throws SQLException
TypeMap
object as the type map for this Connection
object. The type map will be used for the
custom mapping of SQL structured types and distinct types.setTypeMap
in interface Connection
map
- the java.util.Map
object to install as the replacement for this Connection
object's default type mapSQLException
- if a database access error occurs, this method is called on a closed connection or the given parameter is not a
java.util.Map
objectSQLFeatureNotSupportedException
- if the JDBC driver does not support this methodgetTypeMap()
public int getHoldability() throws SQLException
ResultSet
objects created using this Connection
object.getHoldability
in interface Connection
ResultSet.HOLD_CURSORS_OVER_COMMIT
or ResultSet.CLOSE_CURSORS_AT_COMMIT
SQLException
- if a database access error occurs or this method is called on a closed connectionsetHoldability(int)
,
DatabaseMetaData.getResultSetHoldability()
,
ResultSet
public void setHoldability(int holdability) throws SQLException
ResultSet
objects created using this Connection
object to the given holdability.
The default holdability of ResultSet
objects can be be determined by invoking DatabaseMetaData.getResultSetHoldability()
.setHoldability
in interface Connection
holdability
- a ResultSet
holdability constant; one of ResultSet.HOLD_CURSORS_OVER_COMMIT
or
ResultSet.CLOSE_CURSORS_AT_COMMIT
SQLException
- if a database access occurs, this method is called on a closed connection, or the given parameter is not a
ResultSet
constant indicating holdabilitySQLFeatureNotSupportedException
- if the given holdability is not supportedgetHoldability()
,
DatabaseMetaData.getResultSetHoldability()
,
ResultSet
public Savepoint setSavepoint() throws SQLException
Creates an unnamed savepoint in the current transaction and returns the new Savepoint
object that represents it.
if setSavepoint is invoked outside of an active transaction, a transaction will be started at this newly created savepoint.
setSavepoint
in interface Connection
Savepoint
objectSQLException
- 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 this Connection
object is currently in auto-commit modeSQLFeatureNotSupportedException
- if the JDBC driver does not support this methodSavepoint
public Savepoint setSavepoint(String name) throws SQLException
Creates a savepoint with the given name in the current transaction and returns the new Savepoint
object that represents it.
setSavepoint
in interface Connection
name
- a String
containing the name of the savepointSavepoint
objectSQLException
- 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 this Connection
object is currently in auto-commit modeSQLFeatureNotSupportedException
- if the JDBC driver does not support this methodSavepoint
public void releaseSavepoint(Savepoint savepoint) throws SQLException
Savepoint
and subsequent Savepoint
objects from the current transaction. Any reference to the
savepoint after it have been removed will cause an SQLException
to be thrown.releaseSavepoint
in interface Connection
savepoint
- the Savepoint
object to be removedSQLException
- if a database access error occurs, this method is called on a closed connection or the given
Savepoint
object is not a valid savepoint in the current transactionSQLFeatureNotSupportedException
- if the JDBC driver does not support this methodpublic Clob createClob() throws SQLException
Clob
interface. The object returned initially contains no data. The
setAsciiStream
, setCharacterStream
and setString
methods of the Clob
interface may be used
to add data to the Clob
.createClob
in interface Connection
Clob
interfaceSQLException
- if an object that implements the Clob
interface can not be constructed, this method is called on a
closed connection or a database access error occurs.SQLFeatureNotSupportedException
- if the JDBC driver does not support this data typepublic Blob createBlob() throws SQLException
Blob
interface. The object returned initially contains no data. The
setBinaryStream
and setBytes
methods of the Blob
interface may be used to add data to the
Blob
.createBlob
in interface Connection
Blob
interfaceSQLException
- if an object that implements the Blob
interface can not be constructed, this method is called on a
closed connection or a database access error occurs.SQLFeatureNotSupportedException
- if the JDBC driver does not support this data typepublic NClob createNClob() throws SQLException
NClob
interface. The object returned initially contains no data. The
setAsciiStream
, setCharacterStream
and setString
methods of the NClob
interface may be used
to add data to the NClob
.createNClob
in interface Connection
NClob
interfaceSQLException
- if an object that implements the NClob
interface can not be constructed, this method is called on a
closed connection or a database access error occurs.SQLFeatureNotSupportedException
- if the JDBC driver does not support this data typepublic SQLXML createSQLXML() throws SQLException
SQLXML
interface. The object returned initially contains no data. The
createXmlStreamWriter
object and setString
method of the SQLXML
interface may be used to add data to the
SQLXML
object.createSQLXML
in interface Connection
SQLXML
interfaceSQLException
- if an object that implements the SQLXML
interface can not be constructed, this method is called on a
closed connection or a database access error occurs.SQLFeatureNotSupportedException
- if the JDBC driver does not support this data typepublic 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.
isValid
in interface Connection
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.SQLException
- if the value supplied for timeout
is less then 0DatabaseMetaData.getClientInfoProperties()
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 a SQLClientInfoException
, 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.
setClientInfo
in interface Connection
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.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 connectionpublic void setClientInfo(Properties properties) throws SQLClientInfoException
Sets the value of the connection's client info properties. The Properties
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. See
setClientInfo (String, String)
for more information.
If an error occurs in setting any of the client info properties, a SQLClientInfoException
is thrown. The
SQLClientInfoException
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.
setClientInfo
in interface Connection
properties
- the list of client info properties to setSQLClientInfoException
- if the database server returns an error while setting the clientInfo values on the database server or
this method is called on a closed connectionsetClientInfo(String, String)
public String getClientInfo(String name) throws SQLException
DatabaseMetaData.getClientInfoProperties
method to determine the client info properties supported by the
driver.getClientInfo
in interface Connection
name
- The name of the client info property to retrieveSQLException
- if the database server returns an error when fetching the client info value from the database or this method is
called on a closed connectionDatabaseMetaData.getClientInfoProperties()
public Properties getClientInfo() throws SQLException
getClientInfo
in interface Connection
Properties
object that contains the name and current value of each of the client info properties supported by the
driver.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 connectionpublic Array createArrayOf(String typeName, Object[] elements) throws SQLException
createArrayOf
is used to create an array object that maps to a primitive data type, then it is
implementation-defined whether the Array
object is an array of that primitive data type or an array of Object
.
Note: The JDBC driver is responsible for mapping the elements Object
array to the default JDBC SQL type defined in
java.sql.Types for the given class of Object
. 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 an SQLException
is thrown or the driver supports the resulting conversion.createArrayOf
in interface Connection
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 by
Array.getBaseTypeName
elements
- the elements that populate the returned objectSQLException
- 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 connectionSQLFeatureNotSupportedException
- if the JDBC driver does not support this data typepublic Struct createStruct(String typeName, Object[] attributes) throws SQLException
createStruct
in interface Connection
typeName
- the SQL type name of the SQL structured type that this Struct
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 by Struct.getSQLTypeName
.attributes
- the attributes that populate the returned objectSQLException
- if a database error occurs, the typeName is null or this method is called on a closed connectionSQLFeatureNotSupportedException
- if the JDBC driver does not support this data typepublic <T> T unwrap(Class<T> iface) throws SQLException
unwrap
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 an SQLException
is thrown.unwrap
in interface Wrapper
iface
- A Class defining an interface that the result must implement.SQLException
- If no object found that implements the interfacepublic boolean isWrapperFor(Class<?> iface) throws SQLException
isWrapperFor
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 to unwrap
so that callers can use this method to avoid expensive
unwrap
calls that may fail. If this method returns true then calling unwrap
with the same argument should succeed.isWrapperFor
in interface Wrapper
iface
- a Class defining an interface.SQLException
- if an error occurs while determining whether this is a wrapper for an object with the given interface.public String getUsername()
public String getPassword()
public String getHostname()
public int getPort()
public String getDatabase()
protected boolean getPinGlobalTxToPhysicalConnection()
public void setHostFailed()
public int getLowercaseTableNames() throws SQLException
SQLException
- if a connection error occurpublic void abort(Executor executor) throws SQLException
abort
in interface Connection
executor
- executorSQLException
- if security manager doesn't permit it.public int getNetworkTimeout() throws SQLException
getNetworkTimeout
in interface Connection
SQLException
- if database socket error occurpublic String getSchema() throws SQLException
getSchema
in interface Connection
SQLException
public void setSchema(String arg0) throws SQLException
setSchema
in interface Connection
SQLException
public void setNetworkTimeout(Executor executor, int milliseconds) throws SQLException
setNetworkTimeout
in interface Connection
executor
- executor (can be null)milliseconds
- network timeout in milliseconds.SQLException
- if security manager doesn't permit it.protected String getServerTimezone()
protected Options getOptions()
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