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*
* 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 .
*/
module com { module sun { module star { module io {
published interface XInputStream;
};};};};
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);
};
}; }; }; };
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