xref: /aoo42x/main/offapi/com/sun/star/sdbc/PreparedStatement.idl (revision cdf0e10c)

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#ifndef __com_sun_star_sdbc_PreparedStatement_idl__
#define __com_sun_star_sdbc_PreparedStatement_idl__

#ifndef __com_sun_star_lang_XComponent_idl__
#include <com/sun/star/lang/XComponent.idl>
#endif

#ifndef __com_sun_star_beans_XPropertySet_idl__
#include <com/sun/star/beans/XPropertySet.idl>
#endif

#ifndef __com_sun_star_util_XCancellable_idl__
#include <com/sun/star/util/XCancellable.idl>
#endif

 module com {  module sun {  module star {  module sdbc {

 published interface XPreparedStatement;
 published interface XPreparedBatchExecution;
 published interface XParameters;
 published interface XWarningsSupplier;
 published interface XMultipleResults;
 published interface XResultSetMetaDataSupplier;
 published interface XCloseable;


/** represents a precompiled SQL statement.
	 <P>
	 A SQL statement is 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>
	 The
	 <code>setXXX</code>
	 methods for setting IN parameter values
	 must specify types that are compatible with the defined SQL type of
	 the input parameter. For instance, if the IN parameter has SQL type
	 Integer, then the method
	 <member scope="com::sun::star::sdbc">XParameters::setInt()</member>
	 should be used.
	 </P>
	 <p>
	 If arbitrary parameter type conversions are required, the method
	 <member scope="com::sun::star::sdbc">XParameters::setObject()</member>
	 should be used with a target SQL type.
	 </p>
	 <p>
	 Example of setting a parameter; <code>con</code> is an active connection.
	 @example:StarBASIC
	 <listing>
	 pstmt = con.prepareStatement("UPDATE EMPLOYEES SET SALARY = ? WHERE ID = ?")
	 pstmt.setDouble(1, 153833.00)
	 pstmt.setLong(2, 110592)
	 </listing>
	 </p>
	 <P>
	 Only one
	 <type scope="com::sun::star::sdbc">ResultSet</type>
	 per
	 <type scope="com::sun::star::sdbc">Statement</type>
	 can be open at any point in
	 time. Therefore, if the reading of one ResultSet is interleaved
	 with the reading of another, each must have been generated by
	 different Statements. All statement
	 <code>execute</code>
	 methods implicitly close a statement's current ResultSet if an open one exists.
	 </p>
 */
published service PreparedStatement
{

	/** optional for implementation, controls the releasing of resources
			 and the notification of registered listeners.
	 */
	[optional] interface com::sun::star::lang::XComponent;


	/** freeing all resources of a statement. A related resultset will be
			 freed as well.
	 */
	interface XCloseable;

	// gives access to the properties.
	interface com::sun::star::beans::XPropertySet;

	/** could be used for cancelling the execution of SQL statements, if both
			 the DBMS and the driver support aborting an SQL statement.
			 The implementation is optional.
	 */
	[optional] interface com::sun::star::util::XCancellable;

	/** is the interface for executing SQL prepared commands.
	 */
	interface XPreparedStatement;


	/** provides access to the description of the result set which would be generated by executing the
        <type>PreparedStatement</type>.
	 */
	interface XResultSetMetaDataSupplier;


	/** is used for setting parameters before execution of the precompiled
			 statement.
	 */
	interface XParameters;


	/** provides the ability of batch execution. This interface is optional
			 for execution.
			 <p>
			 A driver implementing batch execution must return
			 <TRUE/>
			 for
			 <member scope= "com::sun::star::sdbc">XDatabaseMetaData::supportsBatchUpdates()</member>
			 </p>
	 */
	[optional] interface XPreparedBatchExecution;


	/** controls the chaining of warnings, which may occur on every call
			 to the connected database. Chained warnings from previous calls will be
			 cleared before processing a new call.
	 */
	interface XWarningsSupplier;


	/** covers the handling of multiple results after executing an SQL command.
	 */
	interface XMultipleResults;


	/** retrieves the number of seconds the driver will wait for a Statement
			  to execute. If the limit is exceeded, a SQLException is thrown.
			  There is no limitation, if set to zero.
	 */
	[property] long QueryTimeOut;


	/** returns the maximum number of bytes allowed for any column value.
			  <p>
			  This limit is the maximum number of bytes that can be returned
			  for any column value. The limit applies only to
			  <member scope= "com::sun::star::sdbc">DataType::BINARY</member>
			  ,
			  <member scope= "com::sun::star::sdbc">DataType::VARBINARY</member>
			  ,
			  <member scope= "com::sun::star::sdbc">DataType::LONGVARBINARY</member>
			  ,
			  <member scope= "com::sun::star::sdbc">DataType::CHAR</member>
			  ,
			  <member scope= "com::sun::star::sdbc">DataType::VARCHAR</member>
			  ,
			  and
			  <member scope= "com::sun::star::sdbc">DataType::LONGVARCHAR</member>
			  columns.
			  If the limit is exceeded, the excess data is silently discarded.
			  </p>
			  <p>
			  There is no limitation, if set to zero.
			  </p>
	 */
	[property] long MaxFieldSize;


	/** retrieves the maximum number of rows that a ResultSet can contain.
			 If the limit is exceeded, the excess rows are silently dropped.
			 <br>There is no limitation, if set to zero.
	 */
	[property] long MaxRows;


	/** defines the SQL cursor name that will be used by subsequent Statement
			 <code>execute</code>
			 methods.
			 <p>
			 This name can then be used in SQL positioned update/delete statements to
			 identify the current row in the ResultSet generated by this statement. If
			 the database does not support positioned update/delete, this property is
			 a noop. To insure that a cursor has the proper isolation level to support
			 updates, the cursor's SELECT statement should be of the form
			 'select for update ...'. If the 'for update' phrase is omitted,
			 positioned updates may fail.
			 </p>
			 <P>
			 <B>
			 Note:
			 </B>
			 By definition, positioned update/delete
		     execution must be done by a different Statement than the one
		     which generated the ResultSet being used for positioning. Also,
		     cursor names must be unique within a connection.
			 </p>
	 */
	[property] string CursorName;


	/** retrieves the result set concurrency.
			 @see com::sun::star::sdbc::ResultSetConcurrency
	 */
	[property] long ResultSetConcurrency;


	/** Determine the result set type.
			 @see com::sun::star::sdbc::ResultSetType
	 */
	[property] long ResultSetType;


	/** retrieves the direction for fetching rows from database tables
			 that is the default for result sets generated from this
			 <code>Statement</code>
			 object.
			 <p>
			 If this
			 <code>Statement</code>
			 object has not set a fetch direction,
			 the return value is implementation-specific.
			 </p>
	 */
	[property] long FetchDirection;


	/** retrieves the number of result set rows that is the default fetch size
			 for result sets generated from this
			 <code>Statement</code>
			 object.
			 <p>
			 If this
			 <code>Statement</code>
			 object has not set a fetch size,
			 the return value is implementation-specific.
			 </p>
	 */
	[property] long FetchSize;
};

//=============================================================================

}; }; }; };

#endif