libreoffice/offapi/com/sun/star/sdbc/Statement.idl

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 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 result set will be
             freed as well.
     */
    interface XCloseable;

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

    /** could be used for canceling 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
             com::sun::star::sdbc:: XDatabaseMetaData::supportsBatchUpdates()
             </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
        com::sun::star::sdbc::DataType::BINARY
              ,
              com::sun::star::sdbc::DataType::VARBINARY
              ,
              com::sun::star::sdbc::DataType::LONGVARBINARY
              ,
              com::sun::star::sdbc::DataType::CHAR
              ,
              com::sun::star::sdbc::DataType::VARCHAR
              ,
              and
              com::sun::star::sdbc::DataType::LONGVARCHAR
              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 ensure 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;
};


}; }; }; };

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