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Awake SQL v1.2.1 | ||||||||
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SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
java.lang.Objectorg.awakefw.sql.api.client.AwakeConnection
public final class AwakeConnection
Provides a Connection
implementation that enable to use a
virtual JDBC Connection that is mapped to a Server JDBC Connection
in order to access a remote SQL database through HTTP.
This Connection
implementation supports:
Blob/Clob
updates with clean streaming behavior when
uploading.Blob/Clob
reads with clean streaming behavior when
downloading.commit
and rollback
orders.
AwakeConnection
, just use it like a regular
Connection
to execute your PreparedStatement
and
Statement
, and to navigate through your ResultSet
.
All thrown exceptions are of type SQLException
. Use
Throwable.getCause()
to get the original wrapped Exception.
If an Exception is thrown by the Awake Server, the original Exception will be
a RemoteException
. The cause will be available with
Throwable.getCause()
and the remote stack trace as a string
available with RemoteException.getRemoteStackTrace()
The SQL Exceptions specific to an Awake failure all start with the
"[AWAKE FAILURE]"
string.
Example:
// Define URL of the path to the AwakeSqlManager Servlet // We will use a secure SSL/TLS session. All uploads/downloads of SQL // data will be encrypted. String url = "https://www.acme.org/AwakeSqlManager"; // The login info for strong authentication on server side: String username = "myUsername"; char[] password = { 'm', 'y', 'P', 'a', 's', 's', 'w', 'o', 'r', 'd' }; // Create the JDBC Connection to the remote database: Connection connection = new AwakeConnection(url, username, password); // We can now use our Remote JDBC Connection as a regular JDBC Connection // for our queries and updates: String sql = "SELECT CUSTOMER_ID, FNAME, LNAME FROM CUSTOMER WHERE CUSTOMER_ID = ?"; PreparedStatement prepStatement = connection.prepareStatement(sql); prepStatement.setInt(1, 1); ResultSet rs = prepStatement.executeQuery(); while (rs.next()) { String customerId = rs.getString("customer_id"); String fname = rs.getString("fname"); String lname = rs.getString("lname"); System.out.println("customer_id: " + customerId); System.out.println("fname : " + fname); System.out.println("lname : " + lname); // Etc. }
Communication via an (authenticating) proxy server is done using a
HttpProxy
instance:
// Define the http proxy to use: HttpProxy httpProxy = new HttpProxy("myproxyhost", 8080); // Create the JDBC Connection to the remote database using a proxy: Connection connection = new AwakeConnection(url, username, password.toCharArray(), httpProxy); // Etc.
The following dedicated AwakeConnection
methods are not implemented in
java.sql.Connection
:
getVersion()
clone()
getHttpStatusCode()
getUrl()
getUsername()
getAwakeFileSession()
isEncryptStatementParameters()
setEncryptStatementParameters(boolean)
getHttpProtocolParameters()
setAwakeProgressManager(AwakeProgressManager)
getAwakeProgressManager()
getHttpProxy()
getMaxStatementsForMemoryTransport()
setMaxStatementsForMemoryTransport(int)
All long Blobs update/reading that need to be run on a separated thread may
be followed in Swing using a JProgressBar
or ProgressMonitor
:
AwakeProgressManager
interface or use a DefaultAwakeProgressManager
instance.AwakeProgressManager
instance to the Connection using
setAwakeProgressManager
See the source code of AwakeSqlProgressMonitorDemo.java that demonstrates the use of an// Create a default AwakeProgressManager AwakeProgressManager awakeProgressManager = new DefaultAwakeProgressManager(); // Pass it to our Connection ((AwakeConnection)connection).setAwakeProgressManager(awakeProgressManager);
AwakeProgressManager
when inserting a Blob.
Field Summary |
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Fields inherited from interface java.sql.Connection |
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TRANSACTION_NONE, TRANSACTION_READ_COMMITTED, TRANSACTION_READ_UNCOMMITTED, TRANSACTION_REPEATABLE_READ, TRANSACTION_SERIALIZABLE |
Constructor Summary | |
---|---|
AwakeConnection(String url,
String username,
char[] password)
Creates a remote Connection . |
|
AwakeConnection(String url,
String username,
char[] password,
HttpProxy httpProxy)
Creates a remote Connection with a proxy. |
|
AwakeConnection(String url,
String username,
char[] password,
HttpProxy httpProxy,
HttpProtocolParameters httpProtocolParameters)
Creates a remote Connection with a proxy and http
protocol parameters. |
Method Summary | ||
---|---|---|
void |
abort(Executor executor)
Method not implemented in Awake SQL v1.0. |
|
void |
clearWarnings()
Does nothing in Awake SQL v1.0. |
|
Connection |
clone()
Allows to get a copy of the current AwakeConnection : use it
to do some simultaneous operations in a different thread (in order to
avoid conflicts). |
|
void |
close()
Releases this Connection object's database and JDBC
resources immediately instead of waiting for them to be automatically
released. |
|
void |
commit()
Makes all changes made since the previous commit/rollback permanent and releases any database locks currently held by this Connection object. |
|
Array |
createArrayOf(String typeName,
Object[] elements)
Method not implemented in Awake SQL v1.0. |
|
Blob |
createBlob()
Method not implemented in Awake SQL v1.0. |
|
Clob |
createClob()
Method not implemented in Awake SQL v1.0. |
|
NClob |
createNClob()
Method not implemented in Awake SQL v1.0. |
|
SQLXML |
createSQLXML()
Method not implemented in Awake SQL v1.0. |
|
Statement |
createStatement()
Creates a Statement object for sending SQL statements to the
database. |
|
Statement |
createStatement(int resultSetType,
int resultSetConcurrency)
Creates a Statement object that will generate
ResultSet objects with the given type and concurrency. |
|
Statement |
createStatement(int resultSetType,
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)
Method not implemented in Awake SQL v1.0. |
|
boolean |
getAutoCommit()
Retrieves the current auto-commit mode for this Connection
object. |
|
AwakeFileSession |
getAwakeFileSession()
Gets the current AwakeFileSession instance (used for file
transfers of Clobs and Blobs). |
|
AwakeProgressManager |
getAwakeProgressManager()
Returns the AwakeProgresManager in use. |
|
String |
getCatalog()
Retrieves this Connection object's current catalog name. |
|
Properties |
getClientInfo()
Method not implemented in Awake SQL v1.0. |
|
String |
getClientInfo(String name)
Method not implemented in Awake SQL v1.0. |
|
int |
getHoldability()
Retrieves the current holdability of ResultSet objects
created using this Connection object. |
|
HttpProtocolParameters |
getHttpProtocolParameters()
Returns the HttpProtocolParameters instance in use for the
Awake SQL session. |
|
HttpProxy |
getHttpProxy()
Returns the AwakeProgresManager in use. |
|
int |
getHttpStatusCode()
Returns the http status code of the last executed JDBC command that called the remote Awake SQL Manager. |
|
int |
getMaxStatementsForMemoryTransport()
Returns the maximum Number Of Statements that may be transported in memory. |
|
DatabaseMetaData |
getMetaData()
Retrieves a DatabaseMetaData object that contains metadata
about the database to which this Connection object
represents a connection. |
|
int |
getNetworkTimeout()
Method not implemented in Awake SQL v1.0. |
|
String |
getSchema()
Method not implemented in Awake SQL v1.0. |
|
int |
getTransactionIsolation()
Retrieves this Connection object's current transaction
isolation level. |
|
Map<String,Class<?>> |
getTypeMap()
Method not implemented in Awake SQL v1.0. |
|
String |
getUrl()
Returns the URL of the path to the AwakeSqlManager Servlet. |
|
String |
getUsername()
Returns the username in use. |
|
String |
getVersion()
Returns the current Awake SQL Version. |
|
SQLWarning |
getWarnings()
Returns null in Awake SQL v1.0. |
|
boolean |
isClosed()
Retrieves whether this Connection object has been closed. |
|
boolean |
isEncryptStatementParameters()
Returns true if the statement are to be encrypted. |
|
boolean |
isReadOnly()
Retrieves whether this Connection object is in read-only
mode. |
|
boolean |
isValid(int timeout)
Method not implemented in Awake SQL v1.0. |
|
boolean |
isWrapperFor(Class<?> iface)
Method not implemented in Awake SQL v1.0. |
|
String |
nativeSQL(String sql)
Method not implemented in Awake SQL v1.0. |
|
CallableStatement |
prepareCall(String sql)
Method not implemented in Awake SQL v1.0. |
|
CallableStatement |
prepareCall(String sql,
int resultSetType,
int resultSetConcurrency)
Method not implemented in Awake SQL v1.0. |
|
CallableStatement |
prepareCall(String sql,
int resultSetType,
int resultSetConcurrency,
int resultSetHoldability)
Method not implemented in Awake SQL v1.0. |
|
PreparedStatement |
prepareStatement(String sql)
Creates a PreparedStatement object for sending parameterized
SQL statements to the database. |
|
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)
Method not implemented in Awake SQL v1.0. |
|
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)
Method not implemented in Awake SQL v1.0. |
|
void |
releaseSavepoint(Savepoint savepoint)
Method not implemented in Awake SQL v1.0. |
|
void |
rollback()
Undoes all changes made in the current transaction and releases any database locks currently held by this Connection object. |
|
void |
rollback(Savepoint savepoint)
Method not implemented in Awake SQL v1.0. |
|
void |
setAutoCommit(boolean autoCommit)
Sets this connection's auto-commit mode to the given state. |
|
void |
setAwakeProgressManager(AwakeProgressManager awakeProgressManager)
Allows to specify an AwakeProgresManager to use. |
|
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)
Method not implemented in Awake SQL v1.0. |
|
void |
setClientInfo(String name,
String value)
Method not implemented in Awake SQL v1.0. |
|
void |
setEncryptStatementParameters(boolean encryptStatementParameters)
Set if the statement parameters are to be encrypted |
|
void |
setHoldability(int holdability)
Changes the default holdability of ResultSet objects created
using this Connection object to the given holdability. |
|
void |
setMaxStatementsForMemoryTransport(int maxStatementsForMemoryTransport)
Sets the maximum Number Of Statements that may be transported in memory from client to server. if maximum is reached, transport is done using a file. |
|
void |
setNetworkTimeout(Executor executor,
int milliseconds)
Method not implemented in Awake SQL v1.0. |
|
void |
setReadOnly(boolean readOnly)
Puts this connection in read-only mode as a hint to the driver to enable database optimizations. |
|
Savepoint |
setSavepoint()
Method not implemented in Awake SQL v1.0. |
|
Savepoint |
setSavepoint(String name)
Method not implemented in Awake SQL v1.0. |
|
void |
setSchema(String schema)
Method not implemented in Awake SQL v1.0. |
|
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)
Method not implemented in Awake SQL v1.0. |
|
|
unwrap(Class<T> iface)
Method not implemented in Awake SQL v1.0. |
Methods inherited from class java.lang.Object |
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equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public AwakeConnection(String url, String username, char[] password) throws SQLException
Connection
.
url
- the URL of the path to the AwakeSqlManager Servletusername
- the user username for authenticationpassword
- the authentication password
SQLException
- if any Exception
occurs. The
SQLException
wraps the original
Exception
that may be accessed using
getCause()
public AwakeConnection(String url, String username, char[] password, HttpProxy httpProxy) throws SQLException
Connection
with a proxy.
url
- the URL of the path to the AwakeSqlManager Servletusername
- the user username for authenticationpassword
- the authentication passwordhttpProxy
- the proxy parameters (maybe null if none)
SQLException
- if any Exception
occurs. The
SQLException
wraps the original
Exception
that may be accessed using
getCause()
public AwakeConnection(String url, String username, char[] password, HttpProxy httpProxy, HttpProtocolParameters httpProtocolParameters) throws SQLException
Connection
with a proxy and http
protocol parameters.
url
- the URL of the path to the AwakeSqlManager Servletusername
- the user username for authenticationpassword
- the authentication passwordhttpProxy
- the proxy parameters (maybe null if none)
IllegalArgumentException
- if url, username, password is null
SQLException
- if any Exception
occurs. The
SQLException
wraps the original
Exception
that may be accessed using
getCause()
Method Detail |
---|
public void abort(Executor executor) throws SQLException
abort
results in:
SQLException
.
Calling abort
marks the connection closed and releases any
resources. Calling abort
on a closed connection is a no-op.
It is possible that the aborting and releasing of the resources that are
held by the connection can take an extended period of time. When the
abort
method returns, the connection will have been marked
as closed and the Executor
that was passed as a parameter to
abort may still be executing tasks to release resources.
This method checks to see that there is an SQLPermission
object before allowing the method to proceed. If a
SecurityManager
exists and its checkPermission
method denies calling abort
, this method throws a
java.lang.SecurityException
.
executor
- The Executor
implementation which will be used by
abort
.
SQLException
- if a database access error occurs or the executor
is
null
,
SecurityException
- if a security manager exists and its
checkPermission
method denies calling
abort
SecurityManager.checkPermission(java.security.Permission)
,
Executor
public void clearWarnings() throws SQLException
clearWarnings
in interface Connection
SQLException
- if a database access error occurspublic Connection clone()
AwakeConnection
: use it
to do some simultaneous operations in a different thread (in order to
avoid conflicts).
clone
in class Object
public void close() throws SQLException
Connection
object's database and JDBC
resources immediately instead of waiting for them to be automatically
released.
Calling the method close
on a Connection
object
that is already closed is a no-op.
Note: A Connection
object is automatically closed
when it is garbage collected. Certain fatal errors also close a
Connection
object.
close
in interface Connection
SQLException
- if a database access error occurspublic void commit() throws SQLException
Connection
object. This method should be used only when
auto-commit mode has been disabled.
commit
in interface Connection
SQLException
- if a database access error occurs or this
Connection
object is in auto-commit modesetAutoCommit(boolean)
public Array createArrayOf(String typeName, Object[] elements) throws SQLException
Note: When 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 object
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
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
interface
SQLException
- 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 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
interface
SQLException
- 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 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
interface
SQLException
- 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
interface
SQLException
- 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 Statement createStatement() throws SQLException
Statement
object for sending SQL statements to the
database. SQL statements without parameters are normally executed using
Statement
objects. If the same SQL statement is executed
many times, it may be more efficient to use a
PreparedStatement
object.
Result sets created using the returned Statement
object will
by default be type TYPE_FORWARD_ONLY
and have a concurrency
level of CONCUR_READ_ONLY
.
createStatement
in interface Connection
Statement
object
SQLException
- if a database access error occurspublic Statement createStatement(int resultSetType, 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
resultSetType
- 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
concurrency
SQLException
- 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
concurrency
SQLFeatureNotSupportedException
- 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 Statement createStatement(int resultSetType, 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
resultSetType
- 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 holdability
SQLException
- 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 holdability
SQLFeatureNotSupportedException
- 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 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 object
SQLException
- if a database error occurs, the typeName is null or this
method is called on a closed connection
SQLFeatureNotSupportedException
- if the JDBC driver does not support this data typepublic boolean getAutoCommit() throws SQLException
Connection
object.
getAutoCommit
in interface Connection
Connection
object's
auto-commit mode
SQLException
- if a database access error occurssetAutoCommit(boolean)
public AwakeFileSession getAwakeFileSession()
AwakeFileSession
instance (used for file
transfers of Clobs and Blobs).
public AwakeProgressManager getAwakeProgressManager()
AwakeProgresManager
in use.
AwakeProgresManager
in usepublic String getCatalog() throws SQLException
Connection
object's current catalog name.
getCatalog
in interface Connection
null
if there is none
SQLException
- if a database access error occurssetCatalog(java.lang.String)
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 connection
public String getClientInfo(String name) throws SQLException
Applications may use the
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 retrieve
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
DatabaseMetaData.getClientInfoProperties()
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 HttpProtocolParameters getHttpProtocolParameters()
HttpProtocolParameters
instance in use for the
Awake SQL session.
HttpProtocolParameters
instance in use for the
Awake SQL sessionpublic HttpProxy getHttpProxy()
AwakeProgresManager
in use.
AwakeProgresManager
in usepublic int getHttpStatusCode()
public int getMaxStatementsForMemoryTransport()
public DatabaseMetaData getMetaData() throws SQLException
DatabaseMetaData
object that contains metadata
about the database to which this Connection
object
represents a connection. The metadata includes information about the
database's tables, its supported SQL grammar, its stored procedures, the
capabilities of this connection, and so on.
getMetaData
in interface Connection
DatabaseMetaData
object for this
Connection
object
SQLException
- if a database access error occurspublic int getNetworkTimeout() throws SQLException
SQLException
is thrown.
SQLException
- if a database access error occurs or this method is called on
a closed Connection
SQLFeatureNotSupportedException
- if the JDBC driver does not support this methodsetNetworkTimeout(java.util.concurrent.Executor, int)
public String getSchema() throws SQLException
Connection
object's current schema name.
null
if there is none
SQLException
- if a database access error occurs or this method is called
on a closed connectionsetSchema(java.lang.String)
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 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
object
SQLException
- if a database access error occurssetTypeMap(java.util.Map>)
public String getUrl()
public String getUsername()
public String getVersion()
public SQLWarning getWarnings() throws SQLException
getWarnings
in interface Connection
SQLException
- if a database access error occurs or this method is called
on a closed connectionSQLWarning
public boolean isClosed() throws SQLException
Connection
object has been closed. A
connection is closed if the method close
has been called on
it or if certain fatal errors have occurred. This method is guaranteed to
return true
only when it is called after the method
Connection.close
has been called.
This method generally cannot be called to determine whether a connection to a database is valid or invalid. A typical client can determine that a connection is invalid by catching any exceptions that might be thrown when an operation is attempted.
isClosed
in interface Connection
true
if this Connection
object is
closed; false
if it is still open
SQLException
- if a database access error occurspublic boolean isEncryptStatementParameters()
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
otherwise
SQLException
- if a database access error occurspublic boolean isValid(int timeout) throws SQLException
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 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 nativeSQL(String sql) throws SQLException
nativeSQL
in interface Connection
sql
- an SQL statement that may contain one or more '?' parameter
placeholders
SQLException
- if a database access error occurspublic 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.
Note: This method is optimized for handling stored procedure call
statements. Some drivers may send the call statement to the database when
the method prepareCall
is done; others may wait until the
CallableStatement
object is executed. This has no direct
effect on users; however, it does affect which method throws certain
SQLExceptions.
Result sets created using the returned CallableStatement
object will by default be type TYPE_FORWARD_ONLY
and have a
concurrency level of CONCUR_READ_ONLY
.
prepareCall
in interface Connection
sql
- an SQL statement that may contain one or more '?' parameter
placeholders. Typically this statement is a JDBC function call
escape string.
CallableStatement
object containing
the pre-compiled SQL statement
SQLException
- if a database access error occurspublic 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.
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
concurrency
SQLException
- if a database access error occurs or the given parameters
are not ResultSet
constants indicating type
and concurrencypublic 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 holdability
SQLException
- if a database access error occurs or the given parameters
are not ResultSet
constants indicating type,
concurrency, and holdabilityResultSet
public PreparedStatement prepareStatement(String sql) throws SQLException
PreparedStatement
object for sending parameterized
SQL statements to the database.
A 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 SQLException
objects.
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
.
prepareStatement
in interface Connection
sql
- an SQL statement that may contain one or more '?' IN parameter
placeholders
PreparedStatement
object containing
the pre-compiled SQL statement
SQLException
- if a database access error occurspublic PreparedStatement prepareStatement(String sql, int autoGeneratedKeys) throws SQLException
PreparedStatement
object that has the
capability to retrieve auto-generated keys. Method not implemented
in Awake SQL v1.0. 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 keys
SQLException
- 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 returned
SQLFeatureNotSupportedException
- 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
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. This array
is ignored if the SQL statement is not an INSERT
statement.
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
.
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 rows
PreparedStatement
object, containing the
pre-compiled statement, that is capable of returning the
auto-generated keys designated by the given array of column
indexes
SQLException
- if a database access error occurspublic 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 concurrency
SQLException
- 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
concurrency
SQLFeatureNotSupportedException
- 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 PreparedStatement prepareStatement(String sql, int resultSetType, int resultSetConcurrency, int resultSetHoldability) throws SQLException
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 holdability
SQLException
- 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 holdability
SQLFeatureNotSupportedException
- 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, String[] columnNames) throws SQLException
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. This array is ignored if
the SQL statement is not an INSERT
statement.
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
.
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 rows
PreparedStatement
object, containing the
pre-compiled statement, that is capable of returning the
auto-generated keys designated by the given array of column names
SQLException
- if a database access error occurspublic void releaseSavepoint(Savepoint savepoint) throws SQLException
Savepoint
object 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 removed
SQLException
- if a database access error occurs or the given
Savepoint
object is not a valid savepoint in
the current transactionpublic void rollback() throws SQLException
Connection
object.
This method should be used only when auto-commit mode has been disabled.
rollback
in interface Connection
SQLException
- if a database access error occurs or this
Connection
object is in auto-commit modesetAutoCommit(boolean)
public void rollback(Savepoint savepoint) throws SQLException
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 to
SQLException
- if a database access error occurs, the
Savepoint
object is no longer valid, or this
Connection
object is currently in auto-commit
modeSavepoint
,
rollback(java.sql.Savepoint)
public void setAutoCommit(boolean autoCommit) throws SQLException
commit
or the method rollback
. By default, new connections are in auto-commit mode.
The commit occurs when the statement completes or the next execute
occurs, whichever comes first. In the case of statements returning a
ResultSet
object, the statement completes when the last row
of the ResultSet
object has been retrieved or the
ResultSet
object has been closed. In advanced cases, a
single statement may return multiple results as well as output parameter
values. In these cases, the commit occurs when all results and output
parameter values have been retrieved.
NOTE: If this method is called during a transaction, the transaction is committed.
setAutoCommit
in interface Connection
autoCommit
- true
to enable auto-commit mode;
false
to disable it
SQLException
- if a database access error occursgetAutoCommit()
public void setAwakeProgressManager(AwakeProgressManager awakeProgressManager)
AwakeProgresManager
to use.
awakeProgressManager
- the owner to set - that is the File Transfer Enginepublic void setCatalog(String catalog) throws SQLException
Connection
object's database in which to work.
Awake SQL v1.0 does not support catalogs, it will silently ignore this request.
setCatalog
in interface Connection
catalog
- the name of a catalog (subspace in this
Connection
object's database) in which to work
SQLException
- if a database access error occursgetCatalog()
public void setClientInfo(Properties properties) throws SQLClientInfoException
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 set
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
setClientInfo(String, String)
public void setClientInfo(String name, String value) throws SQLClientInfoException
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 connection
public void setEncryptStatementParameters(boolean encryptStatementParameters)
encryptStatementParameters
- true if the statement parameters are to be encrypted, else
falsepublic 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 holdability
SQLFeatureNotSupportedException
- if the given holdability is not supportedgetHoldability()
,
DatabaseMetaData.getResultSetHoldability()
,
ResultSet
public void setMaxStatementsForMemoryTransport(int maxStatementsForMemoryTransport)
maxStatementsForMemoryTransport
- the maximum Number Of Statements that may be transported in
memory.public void setNetworkTimeout(Executor executor, int milliseconds) throws SQLException
Connection
or objects created from
the Connection
will wait for the database to reply to any
one request. If any request remains unanswered, the waiting method will
return with a SQLException
, and the Connection
or objects created from the Connection
will be marked as
closed. Any subsequent use of the objects, with the exception of the
close
, isClosed
or
Connection.isValid
methods, will result in a
SQLException
.
Note: This method is intended to address a rare but serious
condition where network partitions can cause threads issuing JDBC calls
to hang uninterruptedly in socket reads, until the OS TCP-TIMEOUT
(typically 10 minutes). This method is related to the abort()
method which provides an administrator thread a means to free
any such threads in cases where the JDBC connection is accessible to the
administrator thread. The setNetworkTimeout
method will
cover cases where there is no administrator thread, or it has no access
to the connection. This method is severe in it's effects, and should be
given a high enough value so it is never triggered before any more normal
timeouts, such as transaction timeouts.
JDBC driver implementations may also choose to support the
setNetworkTimeout
method to impose a limit on database response
time, in environments where no network is present.
Drivers may internally implement some or all of their API calls with multiple internal driver-database transmissions, and it is left to the driver implementation to determine whether the limit will be applied always to the response to the API call, or to any single request made during the API call.
This method can be invoked more than once, such as to set a limit for an area of JDBC code, and to reset to the default on exit from this area. Invocation of this method has no impact on already outstanding requests.
The Statement.setQueryTimeout()
timeout value is independent of
the timeout value specified in setNetworkTimeout
. If the query
timeout expires before the network timeout then the statement execution
will be canceled. If the network is still active the result will be that
both the statement and connection are still usable. However if the
network timeout expires before the query timeout or if the statement
timeout fails due to network problems, the connection will be marked as
closed, any resources held by the connection will be released and both
the connection and statement will be unusable.
When the driver determines that the setNetworkTimeout
timeout
value has expired, the JDBC driver marks the connection closed and
releases any resources held by the connection.
This method checks to see that there is an SQLPermission
object before allowing the method to proceed. If a
SecurityManager
exists and its checkPermission
method denies calling setNetworkTimeout
, this method throws
a java.lang.SecurityException
.
executor
- The Executor
implementation which will be used by
setNetworkTimeout
.milliseconds
- The time in milliseconds to wait for the database operation to
complete. If the JDBC driver does not support milliseconds,
the JDBC driver will round the value up to the nearest second.
If the timeout period expires before the operation completes,
a SQLException will be thrown. A value of 0 indicates that
there is not timeout for database operations.
SQLException
- if a database access error occurs, this method is called on a
closed connection, the executor
is null
, or
the value specified for seconds
is less than 0.
SecurityException
- if a security manager exists and its
checkPermission
method denies calling
setNetworkTimeout
.
SQLFeatureNotSupportedException
- if the JDBC driver does not support this methodSecurityManager.checkPermission(java.security.Permission)
,
Statement.setQueryTimeout(int)
,
getNetworkTimeout()
,
abort(java.util.concurrent.Executor)
,
Executor
public void setReadOnly(boolean readOnly) throws SQLException
Note: This method cannot be called during a transaction.
setReadOnly
in interface Connection
readOnly
- true
enables read-only mode; false
disables it
SQLException
- if a database access error occurs or this method is called
during a transactionpublic Savepoint setSavepoint() throws SQLException
Savepoint
object that represents it.
setSavepoint
in interface Connection
Savepoint
object
SQLException
- if a database access error occurs or this
Connection
object is currently in auto-commit
modeSavepoint
public Savepoint setSavepoint(String name) throws SQLException
Savepoint
object that represents it.
setSavepoint
in interface Connection
name
- a String
containing the name of the savepoint
Savepoint
object
SQLException
- if a database access error occurs or this
Connection
object is currently in auto-commit
modeSavepoint
public void setSchema(String schema) throws SQLException
If the driver does not support schemas, it will silently ignore this request.
Calling setSchema
has no effect on previously created or prepared
Statement
objects. It is implementation defined whether a DBMS
prepare operation takes place immediately when the Connection
method prepareStatement
or prepareCall
is invoked. For
maximum portability, setSchema
should be called before a
Statement
is created or prepared.
schema
- the name of a schema in which to work
SQLException
- if a database access error occurs or this method is called
on a closed connectiongetSchema()
public void setTransactionIsolation(int level) throws SQLException
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 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 map
SQLException
- if a database access error occurs or the given parameter
is not a java.util.Map
objectgetTypeMap()
public <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 interface
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