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*
* Licensed to the Apache Software Foundation ( ASF ) under one or more
* contributor license agreements . See the NOTICE file distributed
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* ownership . The ASF licenses this file to you under the Apache
* License , Version 2 . 0 ( the " License " ) ; you may not use this file
* except in compliance with the License . You may obtain a copy of
* the License at http : //www.apache.org/licenses/LICENSE-2.0 .
*/
module com { module sun { module star { module container {
published interface XNameAccess;
};};};};
module com { module sun { module star { module sdbc {
published interface XStatement;
published interface XPreparedStatement;
published interface XDatabaseMetaData;
/** represents a connection (session) with a specific
database . Within the context of a Connection , SQL statements are
executed and results are returned .
< p >
A Connection ' s database is able to provide information
describing its tables , its supported SQL grammar , its stored
procedures , and the capabilities of this connection . This
information is obtained with the
com : : sun : : star : : sdbc : : XDatabaseMetaData : : getMetaData ( )
method .
< / p >
@ see com : : sun : : star : : sdbc : : XDriverManager
@ see com : : sun : : star : : sdbc : : XStatement
@ see com : : sun : : star : : sdbc : : XDatabaseMetaData
*/
published interface XConnection: com::sun::star::sdbc::XCloseable
{
/** creates a new
com : : sun : : star : : sdbc : : Statement
object for sending SQL statements to the database .
< p >
SQL statements without parameters are normally
executed using Statement objects . If the same SQL statement
is executed many times , it is more efficient to use a
com : : sun : : star : : sdbc : : PreparedStatement .
< / p >
< p >
Result sets created using the returned Statement will have
forward - only type , and read - only concurrency , by default .
< / p >
< p >
Escape processing for the SQL - Statement is enabled , by default .
< / p >
@ returns
a new Statement object
@ throws SQLException
if a database access error occurs .
*/
XStatement createStatement() raises (SQLException);
/** creates a
com : : sun : : star : : sdbc : : PreparedStatement
object for sending parameterized SQL statements to the database .
< p >
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 .
< / p >
< p >
< b >
Note :
< / b >
This method is optimized for handling
parametric SQL statements that benefit from precompilation . If
the driver supports precompilation ,
the method
< code > prepareStatement < / code >
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
com : : sun : : star : : sdbc : : PreparedStatement
is executed . This has no direct effect on users ; however , it does
affect which method throws certain SQLExceptions .
< / p >
< p >
Result sets created using the returned PreparedStatement will have
forward - only type and read - only concurrency , by default .
< / p >
< p >
Escape processing for the SQL - Statement is enabled , by default .
< / p >
@ param sql
a SQL statement that may contain one or more " ? " IN parameter placeholders
@ returns
a new PreparedStatement object containing the pre - compiled statement
@ throws SQLException
if a database access error occurs .
*/
XPreparedStatement prepareStatement([in]string sql) raises (SQLException);
/** creates a
com : : sun : : star : : sdbc : : CallableStatement
object for calling
database stored procedures .
< p >
The CallableStatement provides methods for setting up its IN and OUT
parameters , and methods for executing the call to a stored procedure .
< / p >
< p >
< b >
Note :
< / b >
This method is optimized for handling stored
procedure call statements . Some drivers may send the call
statement to the database when the method
< code > prepareCall < / code >
is done ;
< br / >
others may wait until the CallableStatement 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 will have
forward - only type and read - only concurrency , by default .
< / p >
@ param sql
a SQL statement that may contain one or more " ? " IN parameter placeholders
@ returns
a new PreparedStatement object containing the pre - compiled statement
@ throws SQLException
if a database access error occurs .
*/
XPreparedStatement prepareCall([in]string sql) raises (SQLException);
/** converts the given SQL statement into the system's native SQL grammar.
A driver may convert the JDBC SQL grammar into its system ' s
native SQL grammar prior to sending it ; this method returns the
native form of the statement that the driver would have sent .
@ param sql
a SQL statement that may contain one or more " ? " parameter placeholders
@ returns
the native form of this statement
@ throws SQLException
if a database access error occurs .
*/
string nativeSQL([in]string sql) raises (SQLException);
/** sets this connection's auto-commit mode.
< p >
If a connection is in auto - commit mode , then all its SQL
statements will be executed and committed as individual
transactions . Otherwise , its SQL statements are grouped into
transactions that are terminated by a call to either
the method
com : : sun : : star : : sdbc : : XConnection : : commit ( )
or the method
com : : sun : : star : : sdbc : : XConnection : : rollback ( ) .
By default , new connections are in auto - commit mode .
< / p >
< p >
The commit occurs when the statement completes or the next
execute occurs , whichever comes first . In the case of
statements returning a ResultSet , the statement completes when
the last row of the ResultSet has been retrieved or the
ResultSet 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 .
< / p >
@ param autoCommit
` TRUE ` enables auto - commit ; ` FALSE ` disables auto - commit .
@ throws SQLException
if a database access error occurs .
*/
void setAutoCommit([in] boolean autoCommit) raises (SQLException);
/** gets the current auto-commit state.
@ returns
the current state of auto - commit mode .
@ throws SQLException
if a database access error occurs .
@ see setAutoCommit
*/
boolean getAutoCommit() raises (SQLException);
/** makes all changes made since the previous commit/rollback
permanent and releases any database locks currently held
by the Connection . This method should be
used only when auto - commit mode has been disabled .
@ throws SQLException
if a database access error occurs .
@ see setAutoCommit
*/
void commit() raises (SQLException);
/** drops all changes made since the previous
commit / rollback and releases any database locks currently held
by this Connection . This method should be used only when auto - commit has been disabled .
@ throws SQLException
if a database access error occurs .
@ see setAutoCommit
*/
void rollback() raises (SQLException);
/** tests to see if a connection is closed.
< p >
< b >
Note :
< / b >
A Connection is automatically closed if no one references it
anymore . Certain fatal errors also result in a closed Connection .
< / p >
@ returns
` TRUE ` if the connection is closed ; ` FALSE ` if it ' s still open .
@ throws SQLException
if a database access error occurs .
*/
boolean isClosed() raises (SQLException);
/** gets the metadata regarding this connection's database.
< p >
A Connection ' s database is able to provide information
describing its tables , its supported SQL grammar , its stored
procedures , the capabilities of this connection , and so on . This
information is made available through a DatabaseMetaData
object .
< / p >
@ returns
a DatabaseMetaData object for this Connection .
@ throws SQLException
if a database access error occurs .
*/
XDatabaseMetaData getMetaData() raises (SQLException);
/** puts this connection in read-only mode as a hint to enable
database optimizations .
< p >
< b >
Note :
< / b >
This method cannot be called while in the
middle of a transaction . Calling setReadOnly with
` TRUE `
does not
necessarily cause writes to be prohibited .
< / p >
@ param readOnly
` TRUE ` enables read - only mode ; ` FALSE ` disables read - only mode .
@ throws SQLException
if a database access error occurs .
*/
void setReadOnly([in]boolean readOnly) raises (SQLException);
/** tests to see if the connection is in read-only mode.
@ returns
` TRUE ` if connection is read - only and ` FALSE ` otherwise .
@ throws SQLException
if a database access error occurs .
*/
boolean isReadOnly() raises (SQLException);
/** sets a catalog name in order to select
a subspace of this Connection ' s database in which to work .
If the driver does not support catalogs , it will
silently ignore this request .
@ param catalog
the name of the catalog .
@ throws SQLException
if a database access error occurs .
*/
void setCatalog([in]string catalog) raises (SQLException);
/** returns the Connection's current catalog name.
@ returns
the current catalog name or an empty string .
@ throws SQLException
if a database access error occurs .
*/
string getCatalog() raises (SQLException);
/** attempts to change the transaction isolation level to the one given.
< p >
The constants defined in
com : : sun : : star : : sdbc : : TransactionIsolation
are the possible transaction isolation levels .
< / p >
< p >
< b >
Note :
< / b >
This method cannot be called while
in the middle of a transaction .
< / p >
@ param level
one of the TransactionIsolation values with the exception of NONE ; some databases may not support other values .
@ throws SQLException
if a database access error occurs .
@ see com : : sun : : star : : sdbc : : XDatabaseMetaData : : supportsTransactionIsolationLevel ( )
*/
void setTransactionIsolation([in]long level) raises (SQLException);
/** gets this Connection's current transaction isolation level.
@ returns
the current TransactionIsolation mode value .
@ throws SQLException
if a database access error occurs .
*/
long getTransactionIsolation() raises (SQLException);
/** gets the type map object associated with this connection. Only drivers
which implement the custom type mapping facility will return an object otherwise
NULL could be returned .
< p >
Unless the application has added an entry to the type map , the map
returned will be empty .
< / p >
@ returns
the XNameAccess object associated with this Connection object .
@ throws SQLException
if a database access error occurs .
*/
com::sun::star::container::XNameAccess getTypeMap() raises (SQLException);
/** installs the given type map as the type map for this connection.
The type map will be used for the custom mapping of SQL structured types
and distinct types .
< p >
Only if the driver supports custom type mapping is the setting of a map allowed .
< / p >
@ param typeMap
set the XNameAccess object associated with this Connection object .
@ throws SQLException
if a database access error occurs .
*/
void setTypeMap([in]com::sun::star::container::XNameAccess typeMap)
raises (SQLException);
};
}; }; }; };
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