/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   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 .
 */
#ifndef __com_sun_star_sdbc_XBlob_idl__
#define __com_sun_star_sdbc_XBlob_idl__

#include <com/sun/star/uno/XInterface.idl>

 module com {  module sun {  module star {  module io {
 published interface XInputStream;
};};};};

#include <com/sun/star/sdbc/SQLException.idl>

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


/** is the representation (mapping) of an SQL <i>BLOB</i>.

    <p>
    A SQL
    <i>
    BLOB
    </i>
    is a built-in type that stores a
    Binary Large Object as a column value in a row of a database table.
    The driver implements
    <i>
    BLOB
    </i>
    using a
    SQL
    <code>locator(BLOB)</code>
    , which means that a
    <code>Blob</code>
    object contains a logical pointer to the SQL
    <i>
    BLOB
    </i>
    data rather than the data itself.
    <br/>
    A
    <code>Blob</code>
    object is valid for the duration of the transaction in which is was created.

    </p>
    <p>
    Methods in the interfaces
    com::sun::star::sdbc::XResultSet
    ,
    and
    com::sun::star::sdbc::XPreparedStatement
    , such as
    <code>getBlob</code>
    and
    <code>setBlob</code>
    allow a programmer to access the SQL
    <i>BLOB</i>.
    <br/>
    The
    <code>Blob</code>
    interface provides methods for getting the length of a SQL
    <i>
    BLOB
    </i>
    (Binary Large Object) value, for materializing a
    <i>
    BLOB
    </i>
    value on the client and for determining the position of a pattern of bytes within a
    <i>
    BLOB
    </i>
    value.
    </p>
 */
published interface XBlob: com::sun::star::uno::XInterface
{

    /** returns the number of bytes in the
        <i>
        BLOB
        </i>
        value
        designated by this
        <code>Blob</code>
        object.
        @returns
            the length
        @throws SQLException
            if a database access error occurs.
     */
    hyper length() raises (SQLException);


    /** returns as an array of bytes part or all of the
            <i>
            BLOB
            </i>
             value that this
             <code>Blob</code>
             object designates.  The byte
             array contains up to
             <code>length</code>
             consecutive bytes
             starting at position
             <code>pos</code>.
             @param pos
                is the ordinal position of the first byte in the
                    <i>
                BLOB
                </i>
                value to be extracted; the first byte is at
                    position 1.
             @param length
                is the number of consecutive bytes to be copied.
             @returns
                a byte array containing up to
                <code>length</code>
                    consecutive bytes from the
                <i>
                BLOB
                </i>
                value designated
                 by this
                <code>Blob</code>
                object, starting with the byte at position
                <code>pos</code>.
             @throws SQLException
                if there is an error accessing the <i>BLOB</i>.
     */
    sequence<byte> getBytes([in]hyper pos, [in]long length)
        raises (SQLException);


    /** retrieves the
        <i>
        BLOB
        </i>
        designated by this
        <code>Blob</code>
        instance as a stream.
        @returns
            the stream
        @throws SQLException
            if a database access error occurs.
     */
    com::sun::star::io::XInputStream getBinaryStream()
        raises (SQLException);

    /** determines the byte position at which the specified byte
        <code>pattern</code>
        begins within the
        <i>
        BLOB
        </i>
        value that this
        <code>Blob</code>
        object represents.  The
        search for
        <code>pattern</code>
        begins at position <code>start</code>.

        @param pattern
            the pattern to search
        @param start
            the start position for the search
        @returns
            the position
        @throws SQLException
            if a database access error occurs.
     */
    hyper position([in]sequence<byte> pattern, [in]hyper start)
        raises (SQLException);


    /** determines the byte position in the
        <i>
        BLOB
        </i>
        value
        designated by this
        <code>Blob</code>
        object at which
        <code>pattern</code>
        begins. The search begins at position <code>start</code>.
        @param pattern
            the pattern to search
        @param start
            position to start
        @returns
            the position
        @throws SQLException
            if a database access error occurs.
     */
    hyper positionOfBlob([in]XBlob pattern,[in] hyper start)
         raises (SQLException);
};


}; }; }; };

/*===========================================================================
===========================================================================*/
#endif

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
