AOO410/main/offapi/com/sun/star/sdbc/XBlob.idl

/**************************************************************
 * 
 * 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
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 *************************************************************/


#ifndef __com_sun_star_sdbc_XBlob_idl__ 
#define __com_sun_star_sdbc_XBlob_idl__ 
 
#ifndef __com_sun_star_uno_XInterface_idl__ 
#include <com/sun/star/uno/XInterface.idl> 
#endif 
 
 module com {  module sun {  module star {  module io { 
 published interface XInputStream; 
};};};}; 
 
#ifndef __com_sun_star_sdbc_SQLException_idl__ 
#include <com/sun/star/sdbc/SQLException.idl> 
#endif 
 
 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 
	<type scope="com::sun::star::sdbc">XResultSet</type>
	,
	and 
	<type scope="com::sun::star::sdbc">XPreparedStatement</type>
	, 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
		@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