xref: /aoo42x/main/offapi/com/sun/star/sdbc/Statement.idl (revision d1766043)

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#ifndef __com_sun_star_sdbc_Statement_idl__
#define __com_sun_star_sdbc_Statement_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 XWarningsSupplier;
 published interface XStatement;
 published interface XBatchExecution;
 published interface XMultipleResults;
 published interface XCloseable;


/** is used for executing a static SQL statement and obtaining the results
	produced by it.

	<p>
	Only one ResultSet per Statement 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 Statement
{

	/** 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 commands.
	 */
	interface XStatement;


	/** 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 XBatchExecution;


	/** 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.
				The implementation is optional.
	 */
	[optional] 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.
		<br/>
		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.
		<br/>
		If this
		<code>Statement</code>
		object has not set a fetch direction,
		the return value is implementation-specific.
	 */
	[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.
		<br/>
		If this
		<code>Statement</code>
		object has not set a fetch size,
		the return value is implementation-specific.
	 */
	[property] long FetchSize;


	/** returns if escape processing is on or off.
		If escape scanning is on (the default), the driver will do
		escape substitution before sending the SQL to the database.
	 */
	[property] boolean EscapeProcessing;
};

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

}; }; }; };

#endif